1
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Lu B, Jiang J, Wang L, Jupp AR, Goicoechea JM, Liu S, Li Z, Zhou M, Zeng X. Carbamoylphosphinidene: A Phosphorus Analogue of Carbonyl Nitrene. J Am Chem Soc 2024; 146:18699-18705. [PMID: 38943601 DOI: 10.1021/jacs.4c06016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2024]
Abstract
Carbonyl nitrenes are versatile intermediates that have been extensively characterized; however, their phosphorus analogues remain largely unknown. Herein, we report the observation of a rare example of carbonyl phosphinidene NH2C(O)P, which was generated through the photolytic (193 nm) dehydrogenation of phosphinecarboxamide (NH2C(O)PH2) in a solid N2-matrix at 12 K. The characterization of NH2C(O)P in the triplet ground state with matrix-isolation IR and ultraviolet-visible (UV-vis) spectroscopy is supported by comprehensive isotope labeling experiments (D and 15N) and quantum chemical calculations. Upon visible-light irradiation at 680 nm, NH2C(O)P inserts into dihydrogen by the reformation of NH2C(O)PH2 with concomitant isomerization to the more stable aminophosphaketene (NH2PCO). Additionally, the photoisomerization of NH2C(O)PH2 to NH2C(OH) = PH along with decomposition by yielding hydrogen-bonded complexes HNCO···PH3 and HPCO···NH3 has been observed in the matrix.
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Affiliation(s)
- Bo Lu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200433 Shanghai, China
| | - Junjie Jiang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200433 Shanghai, China
| | - Lina Wang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200433 Shanghai, China
| | - Andrew R Jupp
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Jose M Goicoechea
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
- Department of Chemistry, Indiana University, 800 East Kirkwood Ave., Bloomington, Indiana 47405, United States
| | - Shihua Liu
- LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, 510006 Guangzhou, China
| | - Zhongshu Li
- LIFM, IGCME, School of Chemistry, Sun Yat-Sen University, 510006 Guangzhou, China
| | - Mingfei Zhou
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200433 Shanghai, China
| | - Xiaoqing Zeng
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, 200433 Shanghai, China
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2
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Liu Z, Wu H, Zhang H, Wang F, Liu X, Dong S, Hong X, Feng X. Iron-Catalyzed Asymmetric Imidation of Sulfides via Sterically Biased Nitrene Transfer. J Am Chem Soc 2024; 146:18050-18060. [PMID: 38878303 DOI: 10.1021/jacs.4c04855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Transition-metal-catalyzed enantioselective nitrene transfer to sulfides has emerged as one of the most powerful strategies for rapid construction of enantioenriched sulfimides. However, achieving stereocontrol over highly active earth-abundant transition-metal nitrenoid intermediates remains a formidable challenge compared with precious metals. Herein, we disclose a chiral iron(II)/N,N'-dioxide-catalyzed enantioselective imidation of dialkyl and alkyl aryl sulfides using iminoiodinanes as nitrene precursors. A series of chiral sulfimides were obtained in moderate-to-good yields with high enantioselectivities (56 examples, up to 99% yield, 98:2 e.r.). The utility of this methodology was demonstrated by late-stage modification of complex molecules and synthesis of the chiral insecticide sulfoxaflor and the intermediates of related bioactive compounds. Based on experimental studies and theoretical calculations, a water-bonded high-spin iron nitrenoid species was identified as the key intermediate. The observed stereoselectivity was original from the steric repulsion between the amide unit of the ligand in the chiral cave and the bulky substituent of sulfides. Additionally, dioxazolones proved to be suitable acylnitrene precursors in the presence of an iron(III)/N,N'-dioxide complex, resulting in the formation of enantioselectivity-reversed sulfimides (14 examples, up to 81% yield, 97:3 e.r.).
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Affiliation(s)
- Zhenzhong Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Hongli Wu
- Center of Chemistry for Frontier Technologies, Department of Chemistry, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
| | - Helong Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Fang Wang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xin Hong
- Center of Chemistry for Frontier Technologies, Department of Chemistry, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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3
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Fu R, Xu M, Wang Y, Wu X, Bao X. Organo-Photocatalytic Anti-Markovnikov Hydroamidation of Alkenes with Sulfonyl Azides: A Combined Experimental and Computational Study. Angew Chem Int Ed Engl 2024; 63:e202406069. [PMID: 38630112 DOI: 10.1002/anie.202406069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Indexed: 05/22/2024]
Abstract
The construction of C(sp3)-N bonds via direct N-centered radical addition with olefins under benign conditions is a desirable but challenging strategy. Herein, we describe an organo-photocatalytic approach to achieve anti-Markovnikov alkene hydroamidation with sulfonyl azides in a highly efficient manner under transition-metal-free and mild conditions. A broad range of substrates, including both activated and unactivated alkenes, are suitable for this protocol, providing a convenient and practical method to construct sulfonylamide derivatives. A synergistic experimental and computational mechanistic study suggests that the additive, Hantzsch ester (HE), might undergo a triplet-triplet energy transfer manner to achieve photosensitization by the organo-photocatalyst under visible light irradiation. Next, the resulted triplet excited state 3HE* could lead to a homolytic cleavage of C4-H bond, which triggers a straightforward H-atom transfer (HAT) style in converting sulfonyl azide to the corresponding key amidyl radical. Subsequently, the addition of the amidyl radical to alkene followed by HAT from p-toluenethiol could proceed to afford the desired anti-Markovnikov hydroamidation product. It is worth noting that mechanistic pathway bifurcation could be possible for this reaction. A feasible radical chain propagation mechanistic pathway is also proposed to rationalize the high efficiency of this reaction.
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Affiliation(s)
- Rui Fu
- Innovation Center for Chemical Sciences, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, China
| | - Mengyu Xu
- Innovation Center for Chemical Sciences, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, China
| | - Yujing Wang
- Innovation Center for Chemical Sciences, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, China
| | - Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Xiaoguang Bao
- Innovation Center for Chemical Sciences, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, China
- Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, Jiangsu, 215123, China
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4
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Liu DY, Wang PF, Ruan YJ, Wang XL, Hu XY, Yang Q, Liu J, Wen MM, Zhang CZ, Xiao YH, Liu XG. Assembly of Heterocyclic C-Glycosides by Ru-Catalyzed C-H Activation/Cyclization with Carbonyl Sulfoxonium Ylide Glyco-Reagents. Org Lett 2024; 26:5092-5097. [PMID: 38848493 DOI: 10.1021/acs.orglett.4c01287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2024]
Abstract
New carbonyl sulfoxonium ylide glyco-reagents have been developed, enabling the synthesis of versatile heteroarene C-glycosides through a Ru-catalyzed C-H activation/annulation strategy. These reactions tolerate various saccharide donors and represent a significant advance in the stereoselective synthesis of heterocyclic C-glycosides. Furthermore, the strategy and methods could be applied to large-scale reactions and late-stage modifications of some structurally complex natural products or drugs.
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Affiliation(s)
- Deng-Yin Liu
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Peng-Fei Wang
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Yu-Jun Ruan
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Xiao-Li Wang
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Xin-Yue Hu
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Qian Yang
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Jing Liu
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Miao-Miao Wen
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Cong-Zhen Zhang
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Yu-He Xiao
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Xu-Ge Liu
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
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5
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Chen WL, Song JL, Fang S, Li JB, Zhang SS, Shu B. Rh(III)-catalyzed C(sp 2)-H functionalization/[4+2] annulation of oxadiazolones with iodonium ylides to access diverse fused-isoquinolines and fused-pyridines. Chem Commun (Camb) 2024; 60:6560-6563. [PMID: 38845542 DOI: 10.1039/d4cc02046d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
In this study, a Rh(III)-catalyzed C-H/N-H [4+2] annulation of oxadiazolones with iodonium ylides has been developed, which afforded a series of diverse fused-isoquinolines and fused-pyridines in moderate to high yields. These divergent synthesis protocols featured mild conditions, broad substrate scope, and functional-group compatibility. In addition, scale-up synthesis, related applications and preliminary mechanistic explorations were also accomplished.
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Affiliation(s)
- Wang-Liang Chen
- School of Pharmacy, Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
| | - Jia-Lin Song
- School of Pharmacy, Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
| | - Sheng Fang
- School of Pharmacy, Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
| | - Jiong-Bang Li
- School of Pharmacy, Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
| | - Shang-Shi Zhang
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
| | - Bing Shu
- School of Pharmacy, Guangdong Provincial Key Laboratory of Advanced Drug Delivery, Guangdong Provincial Engineering Center of Topical Precise Drug Delivery System, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
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6
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Chen W, Xu H, Liu FX, Chen K, Zhou Z, Yi W. Chiral Osmium(II)/Salox Species Enabled Enantioselective γ-C(sp 3)-H Amidation: Integrated Experimental and Computational Validation For the Ligand Design and Reaction Development. Angew Chem Int Ed Engl 2024; 63:e202401498. [PMID: 38499469 DOI: 10.1002/anie.202401498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/01/2024] [Accepted: 03/18/2024] [Indexed: 03/20/2024]
Abstract
Herein, multiple types of chiral Os(II) complexes have been designed to address the appealing yet challenging asymmetric C(sp3)-H functionalization, among which the Os(II)/Salox species is found to be the most efficient for precise stereocontrol in realizing the asymmetric C(sp3)-H amidation. As exemplified by the enantioenriched pyrrolidinone synthesis, such tailored Os(II)/Salox catalyst efficiently enables an intramolecular site-/enantioselective C(sp3)-H amidation in the γ-position of dioxazolone substrates, in which benzyl, propargyl and allyl groups bearing various substituted forms are well compatible, affording the corresponding chiral γ-lactam products with good er values (up to 99 : 1) and diverse functionality (>35 examples). The unique performance advantage of the developed chiral Os(II)/Salox system in terms of the catalytic energy profile and the chiral induction has been further clarified by integrated experimental and computational studies.
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Affiliation(s)
- Weijie Chen
- the Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, 511436, China
| | - Huiying Xu
- the Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, 511436, China
| | - Fu-Xiaomin Liu
- the Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, 511436, China
| | - Kaifeng Chen
- the Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, 511436, China
| | - Zhi Zhou
- the Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, 511436, China
| | - Wei Yi
- the Fifth Affiliated Hospital, Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, Guangdong, 511436, China
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7
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Kweon J, Park B, Kim D, Chang S. Decarboxylative stereoretentive C-N coupling by harnessing aminating reagent. Nat Commun 2024; 15:3788. [PMID: 38710673 DOI: 10.1038/s41467-024-48075-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 04/15/2024] [Indexed: 05/08/2024] Open
Abstract
In recent decades, strategies involving transition-metal catalyzed carbon-carbon or carbon-heteroatom bond coupling have emerged as potent synthetic tools for constructing intricate molecular architectures. Among these, decarboxylative carbon-nitrogen bond formation using abundant carboxylic acids or their derivatives has garnered notable attention for accessing alkyl- or arylamines, one of key pharmacophores. While several decarboxylative amination methods have been developed, the involvement of a common carboradical intermediate currently poses challenges in achieving stereospecific transformation toward chiral alkylamines. Herein, we present a base-mediated, stereoretentive decarboxylative amidation by harnessing 1,4,2-dioxazol-5-one as a reactive and robust amidating reagent under transition-metal-free ambient conditions, encompassing all types of primary, secondary and tertiary carboxylic acids, thereby providing access to the important pharmacophore, α-chiral amines. This method exhibits high functional group tolerance, convenient scalability, and ease of applicability for 15N-isotope labeling, thus accentuating its synthetic utilities. Experimental and computational mechanistic investigations reveal a sequence of elementary steps: i) nucleophilic addition of carboxylate to dioxazolone, ii) rearrangement to form a dicarbonyl N-hydroxy intermediate, iii) conversion to hydroxamate, followed by a Lossen-type rearrangement, and finally, iv) reaction of the in situ generated isocyanate with carboxylate leading to C-N bond formation in a stereoretentive manner.
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Affiliation(s)
- Jeonguk Kweon
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea
| | - Bumsu Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea
| | - Dongwook Kim
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea
| | - Sukbok Chang
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, South Korea.
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea.
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8
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Xu S, Mi R, Zheng G, Li X. Cobalt- or rhodium-catalyzed synthesis of 1,2-dihydrophosphete oxides via C-H activation and formal phosphoryl migration. Chem Sci 2024; 15:6012-6021. [PMID: 38665527 PMCID: PMC11040647 DOI: 10.1039/d4sc00649f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 03/11/2024] [Indexed: 04/28/2024] Open
Abstract
A highly stereo- and chemoselective intermolecular coupling of diverse heterocycles with dialkynylphosphine oxides has been realized via cobalt/rhodium-catalyzed C-H bond activation. This protocol provides an efficient synthetic entry to functionalized 1,2-dihydrophosphete oxides in excellent yields via the merger of C-H bond activation and formal 1,2-migration of the phosphoryl group. Compared with traditional methods of synthesis of 1,2-dihydrophosphetes that predominantly relied on stoichiometric metal reagents, this catalytic system features high efficiency, a relatively short reaction time, atom-economy, and operational simplicity. Photophysical properties of selected 1,2-dihydrophosphete oxides are also disclosed.
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Affiliation(s)
- Shengbo Xu
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU) Xi'an 710062 P. R. China
| | - Ruijie Mi
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Sciences, Shandong University Qingdao 266237 P. R. China
| | - Guangfan Zheng
- Department of Chemistry, Northeast Normal University Changchun 130024 P. R. China
| | - Xingwei Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU) Xi'an 710062 P. R. China
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Sciences, Shandong University Qingdao 266237 P. R. China
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9
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Mishra S, Aghi A, Kumar A. Rh(III)-Catalyzed Controlled Ortho-Amidation of Arylamides with Dioxazolones Using Weakly Coordinating Native Primary Amide as the Directing Group. J Org Chem 2024; 89:5606-5618. [PMID: 38557043 DOI: 10.1021/acs.joc.4c00116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Herein, we report a controlled introduction of an amide unit at the ortho-position of an electron-deficient arylamide system without affording any cyclized products using user-friendly dioxazolone as an amidating reagent in the presence of a Rh(III)-catalyst. This is the first report where native primary amide has been utilized as a weakly coordinating group for site-selective C-N bond formation reaction. The developed protocol works under external auxiliary-free conditions with a wide substrate scope.
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Affiliation(s)
- Saksham Mishra
- Department of Chemistry, Indian Institute of Technology, Bihta, Patna 801106, Bihar, India
| | - Anjali Aghi
- Department of Chemistry, Indian Institute of Technology, Bihta, Patna 801106, Bihar, India
| | - Amit Kumar
- Department of Chemistry, Indian Institute of Technology, Bihta, Patna 801106, Bihar, India
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10
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Jia X, Hao GL, Feng M, Jiang H, Wang SG, Huang L. Rh(III)-Catalyzed Diastereo- and Enantioselective Regiodivergent (Hetero)Arylamidation of (Homo)Allylic Sulfides. J Am Chem Soc 2024; 146:9768-9778. [PMID: 38545837 DOI: 10.1021/jacs.3c14041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
A rhodium-catalyzed 3-component conjunctive diastereo- and regioselective arylamidation of (homo)allylic sulfides, organon boronic acids, and dioxazolones is reported. These reactions deliver the 1,2-insertion and 2,1-insertion arylamidation products, respectively, for allylic sulfides and homoallylic sulfides. The enantioselective arylamidation of terminal and internal allylic sulfides is achieved, furnishing various 1,3-N,S compounds featuring one or two contiguous stereocenters in high yields and with high diastereo- and enantioselectivities. Mechanistic studies suggest a change in the turnover-limiting and selectivity-determining steps induced by the native and easily removable sulfide group.
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Affiliation(s)
- Xiaoyan Jia
- State Key Laboratory of Pulp and Paper Engineering and Key Laboratory of Functional Molecular Engineering of Guangdong Province in School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Gui-Lin Hao
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P. R. China
| | - Mengxia Feng
- State Key Laboratory of Pulp and Paper Engineering and Key Laboratory of Functional Molecular Engineering of Guangdong Province in School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Huanfeng Jiang
- State Key Laboratory of Pulp and Paper Engineering and Key Laboratory of Functional Molecular Engineering of Guangdong Province in School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Shou-Guo Wang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P. R. China
| | - Liangbin Huang
- State Key Laboratory of Pulp and Paper Engineering and Key Laboratory of Functional Molecular Engineering of Guangdong Province in School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
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11
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Choi H, Yoo S, Song H, Lee E. IZCp and PZCp: Redox Non-innocent Cyclopentadienyl Ligands as Electron Reservoirs for Sandwich Complexes. Inorg Chem 2024; 63:6427-6434. [PMID: 38534011 DOI: 10.1021/acs.inorgchem.4c00259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
A long-sustained effort of systematic steric and electronic modification of cyclopentadienyl (Cp) ligands has enabled them to find wide-ranging, valuable applications. Herein, we present two novel Cp ligands: imidazolium- and pyrrolinium-substituted zwitterionic Cps (IZCp and PZCp), whose key utility is redox non-innocence─the ability to participate cooperatively with the metal center in redox reactions. Through the simple metalation of ZCps, the Cr(0) and Mo(0) half-sandwich complexes (IZCp)Cr(CO)3, (PZCp)Cr(CO)3, (IZCp)Mo(CO)3, and (PZCp)Mo(CO)3, respectively, as well as the Ru(II) sandwich complexes [(IZCp)RuCp]PF6 and [(PZCp)RuCp]PF6 were prepared. The sandwich complexes were fully characterized and showed by cyclic voltammetry reversible one-electron reduction at E1/2 potentials ranging from -1.7 to -2.7 V vs Fc/Fc+. These values are unusually low and have not been observed with other Cp ligands due to the instability of the reduced complexes. Density functional theory (DFT) calculations for the reduced sandwich derivatives with IZCp and PZCp showed their spin densities to be highly delocalized over their ZCp ligand moieties (70-90%). Electron paramagnetic resonance (EPR) analysis of the isolated K[(PZCp)Mo(CO)3] and (PZCp)RuCp also indicated a high degree of ligand-localized radical character. Thus, the IZCp and PZCp ligands act as electron reservoirs to sustain these sandwich complexes in highly reduced states. At the same time, the CO stretching frequencies of K[(PZCp)Mo(CO)3]: νCO 1871, 1748, and 1699 cm-1, rank the [PZCp]- ligand as the strongest electron-donating Cp ligand among the reported CpMo(CO)3 derivatives, whose νCO > 1746 cm-1. In addition, these redox non-innocent Cps were obtained in high yields and found to be practically air- and moisture-stable, unlike typical Cps.
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Affiliation(s)
- Hyeonjeong Choi
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Seunghyuk Yoo
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Hayoung Song
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Eunsung Lee
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
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12
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Bae H, Park J, Yoon R, Lee S, Son J. Copper-catalyzed synthesis of primary amides through reductive N-O cleavage of dioxazolones. RSC Adv 2024; 14:9440-9444. [PMID: 38516159 PMCID: PMC10951817 DOI: 10.1039/d4ra00320a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 03/05/2024] [Indexed: 03/23/2024] Open
Abstract
A new method for the synthesis of primary amides is developed, in which dioxazolones are treated with a copper catalyst under mild reaction conditions. A broad scope of dioxazolones is exhibited as well as dioxazolones containing biologically active structural motifs. These robust and mild reaction conditions allow the transformation of dioxazolones to primary amides, in which sensitive functional groups such as hydroxyl, aldehyde, trialkylsilyl, and unsaturated carbon units are tolerated with excellent chemoselectivity.
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Affiliation(s)
- Hyeonwoong Bae
- Department of Chemical Engineering (BK21 FOUR Graduate Program), Dong-A University 37 Nakdong-Daero 550beon-gil, Saha-gu Busan 49315 South Korea
- Department of Chemistry, Dong-A University 37 Nakdong-Daero 550beon-gil, Saha-gu Busan 49315 South Korea
| | - Jinhwan Park
- Department of Chemical Engineering (BK21 FOUR Graduate Program), Dong-A University 37 Nakdong-Daero 550beon-gil, Saha-gu Busan 49315 South Korea
- Department of Chemistry, Dong-A University 37 Nakdong-Daero 550beon-gil, Saha-gu Busan 49315 South Korea
| | - Rahyun Yoon
- Department of Chemistry, Dong-A University 37 Nakdong-Daero 550beon-gil, Saha-gu Busan 49315 South Korea
| | - Seunghoon Lee
- Department of Chemical Engineering (BK21 FOUR Graduate Program), Dong-A University 37 Nakdong-Daero 550beon-gil, Saha-gu Busan 49315 South Korea
- Department of Chemistry, Dong-A University 37 Nakdong-Daero 550beon-gil, Saha-gu Busan 49315 South Korea
| | - Jongwoo Son
- Department of Chemical Engineering (BK21 FOUR Graduate Program), Dong-A University 37 Nakdong-Daero 550beon-gil, Saha-gu Busan 49315 South Korea
- Department of Chemistry, Dong-A University 37 Nakdong-Daero 550beon-gil, Saha-gu Busan 49315 South Korea
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13
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Li Y, Meng Z, Zhu X, Hao XQ, Song MP. Cu(II)-Mediated Sulfonylation of (Hetero)arenes with TosMIC Using Monodentate Directing Groups. J Org Chem 2024; 89:3894-3906. [PMID: 38385785 DOI: 10.1021/acs.joc.3c02730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Monodentate chelation-assisted direct ortho-C-H sulfonylation of (hetero)arenes using TosMIC as the novel sulfonylating reagent has been developed. A broad range of substrates, including indolines, indoles, 2-phenylpyridines, and others were well tolerated to afford the corresponding products in moderate to good yields. Mechanistic studies revealed that the sulfonyl radical might be involved. Inspired by the above discovery, preliminary para-C-H sulfonylation of naphthalene substrate was also successfully realized. The current protocol featured with cheap metal catalysis, good functional group compatibility, and operational convenience.
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Affiliation(s)
- Yigao Li
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou 450001, P. R. China
| | - Zhuang Meng
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou 450001, P. R. China
| | - Xinju Zhu
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou 450001, P. R. China
| | - Xin-Qi Hao
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou 450001, P. R. China
| | - Mao-Ping Song
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou 450001, P. R. China
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14
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Jia X, Xing D, Shen J, Li B, Zeng Y, Jiang H, Huang L. 1,2,3-Thiadiazole as a Modifiable and Scalable Directing Group for ortho-C-H Functionalization. Org Lett 2024; 26:1544-1549. [PMID: 38358975 DOI: 10.1021/acs.orglett.3c04075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
In the last few decades, directed C-H bond functionalization has had enormous applicability in academia and industry. The development of a novel, readily accessible, and scalable directing group with modifiable ability is highly desirable in C-H functionalization. Herein, we report the 1,2,3-thiadiazole as a modifiable directing group for C-H amidation and alkynylation with dioxazolones, p-toluenesulfonyl azide, and bromoalkynes in high yield. The densely functionalized 1,2,3-thiadiazole products are modified into thioamide, multisubstituted furan, γ-thiapyrone, thiazole, and various alkynyl sulfides through simple and one-step reactions. The competition experiments reveal that the directing ability of 1,2,3-thiadiazole is slightly weaker than pyridine and bidentate amide but stronger than the widely used carboxylate.
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Affiliation(s)
- Xiaoyan Jia
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Donghui Xing
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Jiayi Shen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Bo Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Yue Zeng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Liangbin Huang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
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15
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Singh P, Min J, Min S, Moon K, Kim HS, Kim IS. Sulfur-Directed α-C(sp 3)-H Amidation of Pyrrolidines with Dioxazolones under Rhodium Catalysis. Org Lett 2024; 26:57-61. [PMID: 38134331 DOI: 10.1021/acs.orglett.3c03633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2023]
Abstract
Site-selective functionalization of saturated N-heterocycles such as pyrrolidines is a central topic in organic synthesis and drug discovery. We herein report the sulfur-assisted rhodium(III)-catalyzed sp3 C-H amidation of pyrrolidines with dioxazolones as amidating agents. The amenability of the thioamide directing group is elucidated by a series of control experiments.
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Affiliation(s)
- Pargat Singh
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jeonghyun Min
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Sujin Min
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Kyeongwon Moon
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hyung Sik Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - In Su Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
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16
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Liu J, Liu DY, Yang Q, Zeng YF, Wang XL, Wang PF, Ruan YJ, Wen MM, Zhang SS, Du LD, Liu XG. Cp*Rh(III)-catalyzed regioselective cyclization of aromatic amides with allenes. Chem Commun (Camb) 2024; 60:598-601. [PMID: 38099839 DOI: 10.1039/d3cc05342c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
A new Cp*Rh(III)-catalyzed regioselective cyclization reaction of aromatic amides with allenes is reported. The use of allenyl derivatives bearing a directing-group assistant as a reaction promoter was the key to the success of this protocol. In this catalytic system, N-(pivaloyloxy)benzamide substrates react with allenes via Rh-σ-alkenyl intermediates, while N-(pivaloyloxy) indol substrates react via Rh-π-allyl intermediates. These reactions were characterized by mild reaction conditions, a broad substrate scope, and high functional-group compatibility to yield several high-value isoquinolinone and pyrimido[1,6-a]indol-1(2H)-one skeleton-containing compounds. The synthetic applications and primary mechanisms were also investigated.
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Affiliation(s)
- Jing Liu
- Zhongzhou Laboratory, School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China.
| | - Deng-Yin Liu
- Zhongzhou Laboratory, School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China.
| | - Qian Yang
- Zhongzhou Laboratory, School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China.
| | - Yao-Fu Zeng
- School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang 421000, P. R. China.
| | - Xiao-Li Wang
- Zhongzhou Laboratory, School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China.
| | - Peng-Fei Wang
- Zhongzhou Laboratory, School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China.
| | - Yu-Jun Ruan
- Zhongzhou Laboratory, School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China.
| | - Miao-Miao Wen
- Zhongzhou Laboratory, School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China.
| | - Shang-Shi Zhang
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
| | - Li-da Du
- Institute of Molecular Medicine & Innovative Pharmaceutics, Qingdao University, Qingdao 266071, China.
| | - Xu-Ge Liu
- Zhongzhou Laboratory, School of Pharmacy, Henan University, Kaifeng, Henan, 475004, China.
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17
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Keum H, Ryoo H, Kim D, Chang S. Amidative β-Scission of Alcohols Enabled by Dual Catalysis of Photoredox Proton-Coupled Electron Transfer and Inner-Sphere Ni-Nitrenoid Transfer. J Am Chem Soc 2024; 146:1001-1008. [PMID: 38109265 DOI: 10.1021/jacs.3c11813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
The photoredox/Ni dual catalysis is an appealing strategy to enable unconventional C-heteroatom bond formation. While significant advances have been achieved using this system, intermolecular C(sp3)-N bond formation has been relatively underdeveloped due to the difficulty in C(sp3)-N reductive elimination. Herein, we present a new mechanistic approach that utilizes dioxazolones as the Ni(II)-nitrenoid precursor to capture carbon-centered radicals by merging proton-coupled electron transfer (PCET) with nickel catalysis, thus forming synthetically versatile N-alkyl amides using alcohols. Based on mechanistic investigations, the involvement of (κ2-N,O)Ni(II)-nitrenoid species was proposed to capture photoredox PCET-induced alkyl radicals, thereby playing a pivotal role to enable the C(sp3)-N bond formation.
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Affiliation(s)
- Hyeyun Keum
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Harin Ryoo
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Dongwook Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Sukbok Chang
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
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18
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Zhu SY, He WJ, Shen GC, Bai ZQ, Song FF, He G, Wang H, Chen G. Ligand-Promoted Iron-Catalyzed Nitrene Transfer for the Synthesis of Hydrazines and Triazanes through N-Amidation of Arylamines. Angew Chem Int Ed Engl 2024; 63:e202312465. [PMID: 37997539 DOI: 10.1002/anie.202312465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/21/2023] [Accepted: 11/23/2023] [Indexed: 11/25/2023]
Abstract
Herein, we report that bulky alkylphosphines such as PtBu3 can switch the roles from actor to spectator ligands to promote the FeCl2 -catalyzed N-amidation reaction of arylamines with dioxazolones, giving hydrazides in high efficiency and chemoselectivity. Mechanistic studies indicated that the phosphine ligands could facilitate the decarboxylation of dioxazolones on the Fe center, and the hydrogen bonding interactions between the arylamines and the ligands on Fe nitrenoid intermediates might play a role in modulating the delicate interplay between the phosphine ligand, arylamine, and acyl nitrene N, favoring N-N coupling over N-P coupling. The new ligand-promoted N-amidation protocols offer a convenient way to access various challenging triazane compounds via double or sequential N-amidation of primary arylamines.
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Affiliation(s)
- Shi-Yang Zhu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Wen-Ji He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Guan-Chi Shen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Zi-Qian Bai
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Fang-Fang Song
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Gang He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Hao Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Gong Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
- Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
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19
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Li ZY, Liu F, Li H, Guo X, Jiao L, Hao E. Rhodium-Catalyzed Two-Fold, Regioselective and Enantioselective C-H Activation: an Efficient Strategy to Chiral Single-Benzene-Based Fluorophores. Org Lett 2024. [PMID: 38180822 DOI: 10.1021/acs.orglett.3c03467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2024]
Abstract
A Rh-catalyzed two-fold, regioselective and enantioselective C-H activation via chiral transient directing group strategy has been demonstrated in moderate to good yields with commendable enantioselectivities. The newly synthesized chiral fluorophores exhibit favorable photophysical properties, including large Stokes shifts, good fluorescence quantum yields, aggregation-induced emission in aqueous solution, and intense emission and circularly polarized luminescence in the solid state, indicating great potential applications as chiral fluorescent probes or optoelectronic materials.
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Affiliation(s)
- Zhong-Yuan Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education; Anhui Laboratory of Molecule-Based Materials; and School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Fang Liu
- Key Laboratory of Functional Molecular Solids, Ministry of Education; Anhui Laboratory of Molecule-Based Materials; and School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Heng Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education; Anhui Laboratory of Molecule-Based Materials; and School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Xing Guo
- Key Laboratory of Functional Molecular Solids, Ministry of Education; Anhui Laboratory of Molecule-Based Materials; and School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Lijuan Jiao
- Key Laboratory of Functional Molecular Solids, Ministry of Education; Anhui Laboratory of Molecule-Based Materials; and School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Erhong Hao
- Key Laboratory of Functional Molecular Solids, Ministry of Education; Anhui Laboratory of Molecule-Based Materials; and School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
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20
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Lee C, Kang HJ, Hong S. NiH-catalyzed C-N bond formation: insights and advancements in hydroamination of unsaturated hydrocarbons. Chem Sci 2024; 15:442-457. [PMID: 38179526 PMCID: PMC10763554 DOI: 10.1039/d3sc05589b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 12/04/2023] [Indexed: 01/06/2024] Open
Abstract
The formation of C-N bonds is a fundamental aspect of organic synthesis, and hydroamination has emerged as a pivotal strategy for the synthesis of essential amine derivatives. In recent years, there has been a surge of interest in metal hydride-catalyzed hydroamination reactions of common alkenes and alkynes. This method avoids the need for stoichiometric organometallic reagents and overcomes problems associated with specific organometallic compounds that may impact functional group compatibility. Notably, recent developments have brought to the forefront olefinic hydroamination and hydroamidation reactions facilitated by nickel hydride (NiH) catalysis. The inclusion of suitable chiral ligands has paved the way for the realization of asymmetric hydroamination reactions in the realm of olefins. This review aims to provide an in-depth exploration of the latest achievements in C-N bond formation through intermolecular hydroamination catalyzed by nickel hydrides. Leveraging this innovative approach, a diverse range of alkene and alkyne substrates can be efficiently transformed into value-added compounds enriched with C-N bonds. The intricacies of C-N bond formation are succinctly elucidated, offering a concise overview of the underlying reaction mechanisms. It is our aspiration that this comprehensive review will stimulate further progress in NiH-catalytic techniques, fine-tune reaction systems, drive innovation in catalyst design, and foster a deeper understanding of the underlying mechanisms.
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Affiliation(s)
- Changseok Lee
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS) Daejeon 34141 Korea
| | - Hyung-Joon Kang
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS) Daejeon 34141 Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
| | - Sungwoo Hong
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS) Daejeon 34141 Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Korea
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21
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Pradhan S, Kweon J, Sahoo MK, Jung H, Heo J, Kim YB, Kim D, Park JW, Chang S. A Formal γ-C-H Functionalization of Carboxylic Acids Guided by Metal-Nitrenoids as an Unprecedented Mechanistic Motif. J Am Chem Soc 2023; 145:28251-28263. [PMID: 38100053 DOI: 10.1021/jacs.3c11628] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Harnessing the key intermediates in metal-catalyzed reactions is one of the most essential strategies in the development of selective organic transformations. The nitrogen group transfer reactivity of metal-nitrenoids to ubiquitous C-H bonds allows for diverse C-N bond formation to furnish synthetically valuable aminated products. In this study, we present an unprecedented reactivity of iridium and ruthenium nitrenoids to generate remote carbocation intermediates, which subsequently undergo nucleophile incorporation, thus developing a formal γ-C-H functionalization of carboxylic acids. Mechanistic investigations elucidated a unique singlet metal-nitrenoid reactivity to initiate an abstraction of γ-hydride to form the carbocation intermediate that eventually reacts with a broad range of carbon, nitrogen, and oxygen nucleophiles, as well as biorelevant molecules. Alternatively, the same intermediate can lead to deprotonation to afford β,γ-unsaturated amides in a less nucleophilic solvent.
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Affiliation(s)
- Sourav Pradhan
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Jeonguk Kweon
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Manoj Kumar Sahoo
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Hoimin Jung
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Joon Heo
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Yeong Bum Kim
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Dongwook Kim
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Jung-Woo Park
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Sukbok Chang
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
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22
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Pan S, Mulks FF, Wu P, Rissanen K, Bolm C. Mechanochemical Iron-Catalyzed Nitrene Transfer Reactions: Direct Synthesis of N-Acyl Sulfonimidamides from Sulfinamides and Dioxazolones. Angew Chem Int Ed Engl 2023:e202316702. [PMID: 38055189 DOI: 10.1002/anie.202316702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/02/2023] [Accepted: 12/05/2023] [Indexed: 12/07/2023]
Abstract
A mechanochemical synthesis of sulfonimidamides by iron(II)-catalyzed exogenous ligand-free N-acyl nitrene transfer to sulfinamides is reported. The one-step method tolerates a wide range of sulfinamides with various substituents under solvent-free ambient conditions. Compared to its solution-phase counterpart, this mechanochemical approach shows better conversion and chemoselectivity. Mechanistic investigations by ESI-MS revealed the generation of crucial nitrene iron intermediates.
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Affiliation(s)
- Shulei Pan
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Florian F Mulks
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Peng Wu
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, P.O. Box. 35, Survontie 9 B, 40014, Jyväskylä, Finland
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
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23
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Fanourakis A, Phipps RJ. Catalytic, asymmetric carbon-nitrogen bond formation using metal nitrenoids: from metal-ligand complexes via metalloporphyrins to enzymes. Chem Sci 2023; 14:12447-12476. [PMID: 38020383 PMCID: PMC10646976 DOI: 10.1039/d3sc04661c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 10/08/2023] [Indexed: 12/01/2023] Open
Abstract
The introduction of nitrogen atoms into small molecules is of fundamental importance and it is vital that ever more efficient and selective methods for achieving this are developed. With this aim, the potential of nitrene chemistry has long been appreciated but its application has been constrained by the extreme reactivity of these labile species. This liability however can be attenuated by complexation with a transition metal and the resulting metal nitrenoids have unique and highly versatile reactivity which includes the amination of certain types of aliphatic C-H bonds as well as reactions with alkenes to afford aziridines. At least one new chiral centre is typically formed in these processes and the development of catalysts to exert control over enantioselectivity in nitrenoid-mediated amination has become a growing area of research, particularly over the past two decades. Compared with some synthetic methods, metal nitrenoid chemistry is notable in that chemists can draw from a diverse array of metals and catalysts , ranging from metal-ligand complexes, bearing a variety of ligand types, via bio-inspired metalloporphyrins, all the way through to, very recently, engineered enzymes themselves. In the latter category in particular, rapid progress is being made, the rate of which suggests that this approach may be instrumental in addressing some of the outstanding challenges in the field. This review covers key developments and strategies that have shaped the field, in addition to the latest advances, up until September 2023.
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Affiliation(s)
- Alexander Fanourakis
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Robert J Phipps
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
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24
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Noda H, Asada Y, Shibasaki M. Examining the effects of additives and precursors on the reactivity of rhodium alkyl nitrenes generated from substituted hydroxylamines. Front Chem 2023; 11:1271896. [PMID: 38025067 PMCID: PMC10654751 DOI: 10.3389/fchem.2023.1271896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
In this study, the reactivity of the alkyl nitrenes, generated from the substituted hydroxylamine precursors, was determined using the same rhodium catalyst. The results revealed that in competitive C-H insertion experiments, the regioselectivity between benzylic and tertiary C-H bonds could be modulated by adding Brønsted acids or changing the substituents on oxygen. This study enhances our understanding of the metallonitrene structures and provides valuable insights for further development of selective N-heterocycle syntheses.
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Affiliation(s)
- Hidetoshi Noda
- Institute of Microbial Chemistry (BIKAKEN), Tokyo, Japan
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25
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Krishna Rao MV, Kareem S, Vali SR, Subba Reddy BV. Recent advances in metal directed C-H amidation/amination using sulfonyl azides and phosphoryl azides. Org Biomol Chem 2023; 21:8426-8462. [PMID: 37831479 DOI: 10.1039/d3ob01160g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
Transition metal-catalyzed C-N bond formation reactions have gained popularity as a method for selectively transforming common C-H bonds into N-functionalized molecules. This approach is particularly useful for synthesizing aminated molecules, which require aminating reagents and amidated building blocks. Over the past two decades, significant advancements have been achieved in transition-metal-catalyzed C-H functionalization, with organic azides emerging as promising amino sources and internal oxidants. This review focuses on recent developments in utilizing sulfonyl and phosphoryl azides as building blocks for directed intra- and intermolecular C-H functionalization reactions. Specifically, it discusses methods for synthesizing sulfonamidates and phosphoramidates using sulfonyl and phosphoryl azides, respectively. The article highlights the potential of C-H functionalization reactions with organic azides for efficiently and sustainably synthesizing N-functionalized molecules, providing valuable insights into the latest advancements in this field.
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Affiliation(s)
- M V Krishna Rao
- Department of Fluoro & Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India.
| | - Shaik Kareem
- Department of Fluoro & Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India.
| | - Shaik Ramjan Vali
- Department of Fluoro & Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India.
| | - B V Subba Reddy
- Department of Fluoro & Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India.
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26
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Wang Q, Jung H, Kim D, Chang S. Iridium-Catalyzed Migratory Terminal C(sp 3)-H Amidation of Heteroatom-Substituted Internal Alkenes via Olefin Chain Walking. J Am Chem Soc 2023. [PMID: 37906814 DOI: 10.1021/jacs.3c09679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Hydroamination facilitated by metal hydride catalysis is an appealing synthetic approach to access valuable nitrogen-containing compounds from readily available unsaturated hydrocarbons. While high regioselectivity can be achieved usually for substrates bearing polar chelation groups, the reaction involving simple alkenes frequently provides nonselective outcomes. Herein, we report an iridium-catalyzed highly regioselective terminal C(sp3)-H amidation of internal alkenes utilizing dioxazolones as an amino source via olefin chain walking. Most notably, this mechanistic motif of double bond migration to the terminal position operates not only with dialkyl-substituted simple alkenes including styrenes but also with heteroatom-substituted olefins such as enol ethers, vinyl silanes, and vinyl borons, thus representing the first example of the terminal methyl amidation of the latter type of alkenes through a nondissociative chain walking process.
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Affiliation(s)
- Qing Wang
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Hoimin Jung
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Dongwook Kim
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Sukbok Chang
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
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27
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Sheng PZ, Li LL, Ni ZB, Wei K, Yang YR. Enantioselective Total Synthesis of the Cephalotaxus Alkaloid (-)-Cephalotine A. Org Lett 2023; 25:7459-7463. [PMID: 37578250 DOI: 10.1021/acs.orglett.3c02097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Cephalotine A, a recently isolated Cephalotaxus alkaloid, was first synthesized enantioselectively through three critical reactions. SmI2 -mediated radical cyclization of lactone and aldehyde to forge the final ring system, Chang's iridium-catalyzed C-H amidation to construct pyrrolidone stereoselectively, and Carreria's dual Ir/amine catalyzed allylation to install the vicinal tertiary stereocenters.
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Affiliation(s)
- Peng-Zhen Sheng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lu-Lu Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Zhi-Bin Ni
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kun Wei
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yu-Rong Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
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28
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Geraci A, Stojiljković U, Antien K, Salameh N, Baudoin O. Iridium(III)-Catalyzed Intermolecular C(sp 3 )-H Amidation for the Synthesis of Chiral 1,2-Diamines. Angew Chem Int Ed Engl 2023; 62:e202309263. [PMID: 37493209 DOI: 10.1002/anie.202309263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 07/27/2023]
Abstract
Chiral 1,2-diamines are privileged scaffolds among bioactive natural products, active pharmaceutical ingredients, ligands for transition-metal-based asymmetric catalysis and organocatalysts. Despite this interest, the construction of chiral 1,2-diamine motifs still remains a challenge. To address this, an iridium(III)-catalyzed intermolecular C(sp3 )-H amidation reaction was developed. This method relies on the design of a new, cheap and cleavable exo-protecting/directing group derived from camphorsulfonic acid, which is directly installed from easily accessible precursors, and furnishes scalemic free 1,2-diamines upon cleavage of both nitrogen substituents. It was found applicable to both α-secondary and α-tertiary-1,2-diamines, for which a two-step protocol involving intermolecular olefin hydroamination and C(sp3 )-H amidation was developed. Kinetic and computational studies provided insights into the observed reactivity difference between pairs of diastereoisomeric substrates.
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Affiliation(s)
- Andrea Geraci
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Uros Stojiljković
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Kevin Antien
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Nihad Salameh
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Olivier Baudoin
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, 4056, Basel, Switzerland
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29
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Gómez-Suárez A, Neumann CN. Stereochemistry in All Its Shapes and Forms: The 56 th Bürgenstock Conference. Angew Chem Int Ed Engl 2023; 62:e202309468. [PMID: 37590448 DOI: 10.1002/anie.202309468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Indexed: 08/19/2023]
Abstract
Acknowledging the crucial role of stereochemistry in fields as diverse as total synthesis, synthetic methodology, spectroscopy, and the study of the origin of life, the 56th SCS Conference on Stereochemistry, better known as the BÃ1/4rgenstock Conference, brought together a diverse range of chemistry expertise in Brunnen, Switzerland.
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Affiliation(s)
- Adrián Gómez-Suárez
- Organic Chemistry, Bergische Universität Wuppertal, Gaußstr. 20, 42119, Wuppertal, Germany
| | - Constanze N Neumann
- Department of Heterogeneous Catalysis, Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
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30
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Gao S, Das A, Alfonzo E, Sicinski KM, Rieger D, Arnold FH. Enzymatic Nitrogen Incorporation Using Hydroxylamine. J Am Chem Soc 2023; 145:20196-20201. [PMID: 37671894 PMCID: PMC10560455 DOI: 10.1021/jacs.3c08053] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
Hydroxylamine-derived reagents have enabled versatile nitrene transfer reactions for introducing nitrogen-containing functionalities in small-molecule catalysis, as well as biocatalysis. These reagents, however, result in a poor atom economy and stoichiometric organic waste. Activating hydroxylamine (NH2OH) for nitrene transfer offers a low-cost and sustainable route to amine synthesis, since water is the sole byproduct. Despite its presence in nature, hydroxylamine is not known to be used for enzymatic nitrogen incorporation in biosynthesis. Here, we report an engineered heme enzyme that can utilize hydroxylammonium chloride, an inexpensive commodity chemical, for nitrene transfer. Directed evolution of Pyrobaculum arsenaticum protoglobin generated efficient enzymes for benzylic C-H primary amination and styrene aminohydroxylation. Mechanistic studies supported a stepwise radical pathway involving rate-limiting hydrogen atom transfer. This unprecedented activity is a useful addition to the "nitrene transferase" repertoire and hints at possible future discovery of natural enzymes that use hydroxylamine for amination chemistry.
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Affiliation(s)
- Shilong Gao
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Anuvab Das
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Edwin Alfonzo
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Kathleen M. Sicinski
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Dominic Rieger
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Frances H. Arnold
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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31
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Kim S, Song SL, Zhang J, Kim D, Hong S, Chang S. Regio- and Enantioselective Catalytic δ-C-H Amidation of Dioxazolones Enabled by Open-Shell Copper-Nitrenoid Transfer. J Am Chem Soc 2023; 145:16238-16248. [PMID: 37462685 DOI: 10.1021/jacs.3c05258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Controlling regio- and enantioselectivity in C-H functionalization reactions is of paramount importance due to their versatile synthetic utilities. Herein, we describe a new approach for the asymmetric δ-C(sp3)-H amidation catalysis of dioxazolones using a Cu(I) precursor with a chiral bisoxazoline ligand to access six-membered lactams with high to excellent regio- and enantioselectivity (up to >19:1 rr and >99:1 er). Combined experimental and computational mechanistic studies unveiled that the open-shell character of the postulated Cu-nitrenoids enables the regioselective hydrogen atom abstraction and subsequent enantio-determining radical rebound of the resulting carbon radical intermediates. The synthetic utility of this asymmetric cyclization was demonstrated in the diastereoselective introduction of additional functional groups into the chiral δ-lactam skeleton as well as in the rapid access to biorelevant azacyclic compounds.
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Affiliation(s)
- Suhyeon Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Se Lin Song
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Jianbo Zhang
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Dongwook Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Sungwoo Hong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Sukbok Chang
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
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32
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Jung H, Kweon J, Suh JM, Lim MH, Kim D, Chang S. Mechanistic snapshots of rhodium-catalyzed acylnitrene transfer reactions. Science 2023:eadh8753. [PMID: 37471480 DOI: 10.1126/science.adh8753] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 06/26/2023] [Indexed: 07/22/2023]
Abstract
Rhodium acylnitrene complexes are widely implicated in catalytic C-H amidation reactions but have eluded isolation and structural characterization. To overcome this challenge, we designed a chromophoric octahedral rhodium complex with a bidentate dioxazolone ligand, in which photoinduced metal-to-ligand charge transfer initiates catalytic C-H amidation. X-ray photocrystallographic analysis of the Rh-dioxazolone complex allowed structural elucidation of the targeted Rh-acylnitrenoid and provided firm evidence that the singlet nitrenoid species is primarily responsible for acylamino transfer reactions. We also monitored in crystallo reaction of a nucleophile with the in situ generated Rh-acylnitrenoid, providing a crystallographically traceable reaction system to capture mechanistic snapshots of nitrenoid transfer.
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Affiliation(s)
- Hoimin Jung
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Jeonguk Kweon
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Jong-Min Suh
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Mi Hee Lim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Dongwook Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Sukbok Chang
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, South Korea
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33
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Yu K, Zou Z, Igareta NV, Tachibana R, Bechter J, Köhler V, Chen D, Ward TR. Artificial Metalloenzyme-Catalyzed Enantioselective Amidation via Nitrene Insertion in Unactivated C( sp3)-H Bonds. J Am Chem Soc 2023. [PMID: 37471698 PMCID: PMC10401721 DOI: 10.1021/jacs.3c03969] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
Enantioselective C-H amidation offers attractive means to assemble C-N bonds to synthesize high-added value, nitrogen-containing molecules. In recent decades, complementary enzymatic and homogeneous-catalytic strategies for C-H amidation have been reported. Herein, we report on an artificial metalloenzyme (ArM) resulting from anchoring a biotinylated Ir-complex within streptavidin (Sav). The resulting ArM catalyzes the enantioselective amidation of unactivated C(sp3)-H bonds. Chemogenetic optimization of the Ir cofactor and Sav led to significant improvement in both the activity and enantioselectivity. Up to >700 TON and 92% ee for the amidation of unactivated C(sp3)-H bonds was achieved. The single crystal X-ray analysis of the artificial nitrene insertase (ANIase) combined with quantum mechanics-molecular mechanics (QM-MM) calculations sheds light on critical second coordination sphere contacts leading to improved catalytic performance.
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Affiliation(s)
- Kun Yu
- Department of Chemistry, University of Basel, Mattenstrasse 24a, BPR 1096, Basel CH-4058, Switzerland
| | - Zhi Zou
- Department of Chemistry, University of Basel, Mattenstrasse 24a, BPR 1096, Basel CH-4058, Switzerland
| | - Nico V Igareta
- Department of Chemistry, University of Basel, Mattenstrasse 24a, BPR 1096, Basel CH-4058, Switzerland
| | - Ryo Tachibana
- Department of Chemistry, University of Basel, Mattenstrasse 24a, BPR 1096, Basel CH-4058, Switzerland
| | - Julia Bechter
- Department of Chemistry, University of Basel, Mattenstrasse 24a, BPR 1096, Basel CH-4058, Switzerland
| | - Valentin Köhler
- Department of Chemistry, University of Basel, Mattenstrasse 24a, BPR 1096, Basel CH-4058, Switzerland
| | - Dongping Chen
- Department of Chemistry, University of Basel, Mattenstrasse 24a, BPR 1096, Basel CH-4058, Switzerland
| | - Thomas R Ward
- Department of Chemistry, University of Basel, Mattenstrasse 24a, BPR 1096, Basel CH-4058, Switzerland
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34
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Das S, Ehlers AW, Patra S, de Bruin B, Chattopadhyay B. Iron-Catalyzed Intermolecular C-N Cross-Coupling Reactions via Radical Activation Mechanism. J Am Chem Soc 2023. [PMID: 37390369 DOI: 10.1021/jacs.3c05627] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2023]
Abstract
A concept for intermolecular C-N cross-coupling amination has been discovered using tetrazoles and aromatic and aliphatic azides with boronic acids under iron-catalyzed conditions. The amination follows an unprecedented metalloradical activation mechanism that is different from traditional metal-catalyzed C-N cross-coupling reactions. The scope of the reaction has been demonstrated by the employment of a large number of tetrazoles, azides, and boronic acids. Moreover, several late-stage aminations and a short synthesis of a drug candidate have been showcased for further synthetic utility. Collectively, this iron-catalyzed C-N cross-coupling should have wide applications in the context of medicinal chemistry, drug discovery, and pharmaceutical industries.
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Affiliation(s)
- Subrata Das
- Department of Biological & Synthetic Chemistry, Center of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow, 226014 Uttar Pradesh, India
| | - Andreas W Ehlers
- Van't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, 1098 XH Amsterdam, The Netherlands
| | - Sima Patra
- Department of Biological & Synthetic Chemistry, Center of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow, 226014 Uttar Pradesh, India
| | - Bas de Bruin
- Van't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, 1098 XH Amsterdam, The Netherlands
| | - Buddhadeb Chattopadhyay
- Department of Biological & Synthetic Chemistry, Center of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow, 226014 Uttar Pradesh, India
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35
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He Y, Sun B, Lu X, Zhou Y, Zhang FL. Iridium-Catalyzed Direct Ortho-C-H Amidation of α-Ketoesters with Sulfonyl Azides Using a Transient Directing Group Strategy. J Org Chem 2023; 88:4345-4351. [PMID: 36898142 DOI: 10.1021/acs.joc.2c02944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
Direct C-H amidation of α-ketoesters was accomplished using various organic azides as the amino source through the combination of transient directing group strategy and iridium catalysis. Excellent functional group tolerance and wide substrate scope were explored under simple and mild conditions. Importantly, it was found that the steric hindrance of the ester moiety played a pivotal role for the reaction efficacy. In addition, the reaction could be enlarged to gram scale, and several useful heterocycles were readily constructed via one-step late-stage derivatization.
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Affiliation(s)
- Yinlong He
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Bing Sun
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Xuelian Lu
- Shenzhen Research Institute, Wuhan University of Technology, Shenzhen, Guangdong 518057, China
| | - Yirong Zhou
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Fang-Lin Zhang
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China.,Shenzhen Research Institute, Wuhan University of Technology, Shenzhen, Guangdong 518057, China
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36
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Wang F, Chen C, Meng Q. Comprehensive Theoretical Study of Cp*Ir III-Catalyzed Intermolecular Enantioselective Allylic C-H Amidation: Reaction Mechanism, Electronic Processes, and Regioselectivity. J Org Chem 2023; 88:2493-2504. [PMID: 36716217 DOI: 10.1021/acs.joc.2c02951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Density functional theory was used to elucidate the reaction mechanism of Cp*IrIII-catalyzed intermolecular regioselective C(sp3)-H amidation of alkenes with methyl dioxazolones. All substrates, intermediates, and transition states were fully optimized at the ωB97XD/6-31G(d,p) level (LANL2DZ(f) for Ir). The computational results revealed that this amidation occurred through the IrIII/IrV catalytic cycle, involving four important elementary steps: C-H bond activation, oxidative addition of methyl dioxazolone, reductive elimination, and proto-demetalation, and the first was the rate-determining step. The C-H bond activation showed good α- and branch-regioselectivity, decided by the distortion energy of 2-pentene and the interaction energy of the transition state, respectively. The oxidative addition of dioxazolone occurred in one elementary step with CO2 disassociation. The reductive elimination showed good branch-regioselectivity determined by the distorted energy of the allyl group. In the proto-demetalation, hydrogen directly transferred from the oxygen atom to the nitrogen atom. Moreover, to clarify the effect of the substituted groups, selected 12 substrates were also discussed in this text.
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Affiliation(s)
- Fen Wang
- College of Chemistry and Chemical Engineering, Taishan University, Taian271000, Shandong, People's Republic of China
| | - Changbao Chen
- College of Chemistry and Material Science, Shandong Agricultural University, Taian271018, Shandong, People's Republic of China.,Key Laboratory of Agricultural Film Application, Ministry of Agriculture and Rural Affairs, Taian271018, Shandong, People's Republic of China
| | - Qingxi Meng
- College of Chemistry and Material Science, Shandong Agricultural University, Taian271018, Shandong, People's Republic of China.,Key Laboratory of Agricultural Film Application, Ministry of Agriculture and Rural Affairs, Taian271018, Shandong, People's Republic of China
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37
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Choi D, Takahashi N, Maruoka H, Harada S, Nastke A, Gröger H, Nemoto T. Synthetic Study of Dragmacidin E: Enantioselective Construction of the Seven-Membered Ring-Fused Indole Skeleton with Contiguous Stereocenters. J Org Chem 2023. [PMID: 36701491 DOI: 10.1021/acs.joc.2c02216] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
We developed an enantioselective synthetic method of constructing a seven-membered ring-fused indole skeleton with contiguous stereocenters for the synthesis of dragmacidin E. Introduction of chirality at the benzylic position was achieved by Ir-catalyzed asymmetric hydrogenation. After construction of the tricyclic molecular framework using Pd-catalyzed cascade cyclization, the tetrasubstituted carbon center was created using the Ag nitrene-mediated C-H amination reaction. The developed method provided access to the functionalized seven-membered ring-fused indole skeleton with a hydroxymethyl branch in the tetrasubstituted carbon.
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Affiliation(s)
- Dongil Choi
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Noa Takahashi
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Haruka Maruoka
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Shingo Harada
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Alina Nastke
- Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Harald Gröger
- Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
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38
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Liu Y, Shing KP, Lo VKY, Che CM. Iron- and Ruthenium-Catalyzed C–N Bond Formation Reactions. Reactive Metal Imido/Nitrene Intermediates. ACS Catal 2023. [DOI: 10.1021/acscatal.2c04830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Yungen Liu
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, People’s Republic of China
| | - Ka-Pan Shing
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, People’s Republic of China
| | - Vanessa Kar-Yan Lo
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, People’s Republic of China
- HKU Shenzhen Institute of Research and Innovation, Shenzhen 518053, People’s Republic of China
| | - Chi-Ming Che
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, People’s Republic of China
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, People’s Republic of China
- Laboratory for Synthetic Chemistry and Chemical Biology Limited, Units 1503−1511, 15/F, Building 17W, Hong
Kong Science Park, New Territories, Hong Kong 999077, People’s Republic of China
- HKU Shenzhen Institute of Research and Innovation, Shenzhen 518053, People’s Republic of China
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39
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Li N, Hong B, Zhao J, Gu Z. Nitrenoid from Oxime: A Practical Synthesis of Planar Chiral Ferrocenyl Phenanthridines via Nitrene-Involved Ring-Expansion Reaction. Angew Chem Int Ed Engl 2023; 62:e202215530. [PMID: 36344436 DOI: 10.1002/anie.202215530] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Indexed: 11/09/2022]
Abstract
Nitrenes and nitrenoids are highly reactive species and the proposed key intermediates in nitrogen-containing heterocyclic compound synthesis. In this work, we developed a practical method for the synthesis of phenanthridines by the reaction of oximes and Grignard reagents (with or without diethylzinc) via ring-expansion of magnesium coordinated nitrenoid complex as the key step. The method has been used to synthesize optically active planar chiral ferrocenyl phenanthridines.
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Affiliation(s)
- Na Li
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
| | - Biqiong Hong
- College of Materials and Chemical Engineering, Minjiang University, Fuzhou, Fujian, 350108, P. R. China
| | - Jinbo Zhao
- Faculty of Chemistry and Life Science, Changchun University of Technology, 2055 Yan'An Street, Changchun, Jilin 130012, P. R. China
| | - Zhenhua Gu
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China.,College of Materials and Chemical Engineering, Minjiang University, Fuzhou, Fujian, 350108, P. R. China
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40
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Fan J, Wang Y, Hu X, Liu Y, Che CM. Iron porphyrin-catalysed C(sp 3)–H amination with alkyl azides for the synthesis of complex nitrogen-containing compounds. Org Chem Front 2023. [DOI: 10.1039/d2qo01972h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
With the readily prepared iron porphyrin complex as a catalyst and starting with alkyl azides, a panel of nitrogen-containing skeletons representing the families of natural alkaloids and bioactive compounds could be prepared in good yields.
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Affiliation(s)
- Jianqiang Fan
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, P. R. China
| | - Ye Wang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, P. R. China
| | - Xuefu Hu
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, P. R. China
| | - Yungen Liu
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, P. R. China
| | - Chi-Ming Che
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, P. R. China
- State Key Laboratory of Synthetic Chemistry, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
- HKU Shenzhen Institute of Research and Innovation, Shenzhen, Guangdong 518057, P. R. China
- Laboratory for Synthetic Chemistry and Chemical Biology Limited, Units 1503-1511, 15/F, Building 17W, Hong Kong Science Park, New Territories, Hong Kong, China
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41
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Khatua H, Das S, Patra S, Das SK, Roy S, Chattopadhyay B. Iron-Catalyzed Intermolecular Amination of Benzylic C(sp 3)-H Bonds. J Am Chem Soc 2022; 144:21858-21866. [PMID: 36416746 DOI: 10.1021/jacs.2c10719] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
A catalytic system for intermolecular benzylic C(sp3)-H amination is developed utilizing 1,2,3,4-tetrazole as a nitrene precursor via iron catalysis. This method enables direct installation of 2-aminopyridine into the benzylic and heterobenzylic position. The method selectively aminates 2° benzylic C(sp3)-H bond over the 3° and 1° benzylic C(sp3)-H bonds. Experimental studies reveal that the C(sp3)-H amination undergoes via the formation of a benzylic radical intermediate. This study reports the discovery of new method for 2-pyridine substituted benzylamine synthesis using inexpensive, biocompatible base metal catalysis that should have wide application in the context of medicinal chemistry and drug discovery.
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Affiliation(s)
- Hillol Khatua
- Department of Biological & Synthetic Chemistry, Center of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
| | - Subrata Das
- Department of Biological & Synthetic Chemistry, Center of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
| | - Sima Patra
- Department of Biological & Synthetic Chemistry, Center of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
| | - Sandip Kumar Das
- Department of Biological & Synthetic Chemistry, Center of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
| | - Satyajit Roy
- Department of Biological & Synthetic Chemistry, Center of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
| | - Buddhadeb Chattopadhyay
- Department of Biological & Synthetic Chemistry, Center of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, Uttar Pradesh, India
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42
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Mahato SK, Zhang T, Chatani N. Ir(III)-Catalyzed C(sp 2)–H Amidation of 2-Aroylimidazoles with 2,2,2-Trichloroethoxycarbonyl Azide (TrocN 3). J Org Chem 2022; 87:16390-16398. [DOI: 10.1021/acs.joc.2c02056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sanjit K. Mahato
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Chemistry At CreAgro (Discovery), PI Industries Ltd., Udaipur, Rajasthan 313001, India
| | - Tianhao Zhang
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Research Center for Environmental Preservation, Osaka University, 2-4 Yamadaoka, Suita, Osaka 565-0871, Japan
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43
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Zeng Z, Gao H, Zhou Z, Yi W. Intermolecular Redox-Neutral Carboamination of C–C Multiple Bonds Initiated by Transition-Metal-Catalyzed C–H Activation. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Zhongyi Zeng
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, People’s Republic of China
| | - Hui Gao
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, People’s Republic of China
| | - Zhi Zhou
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, People’s Republic of China
| | - Wei Yi
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, People’s Republic of China
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44
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Multicomponent coupling and macrocyclization enabled by Rh(III)-catalyzed dual C–H activation: Macrocyclic oxime inhibitor of influenza H1N1. Chem 2022. [DOI: 10.1016/j.chempr.2022.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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45
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Tang X, Tak RK, Noda H, Shibasaki M. A Missing Link in Multisubstituted Pyrrolidines: Remote Stereocontrol Forged by Rhodium‐Alkyl Nitrene. Angew Chem Int Ed Engl 2022; 61:e202212421. [DOI: 10.1002/anie.202212421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Xinxin Tang
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki Shinagawa-ku, Tokyo 141-0021 Japan
| | - Raj K. Tak
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki Shinagawa-ku, Tokyo 141-0021 Japan
| | - Hidetoshi Noda
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki Shinagawa-ku, Tokyo 141-0021 Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN), Tokyo 3-14-23 Kamiosaki Shinagawa-ku, Tokyo 141-0021 Japan
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46
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Zhu BH, Shen CH, Nie ML, Zheng F, Huang C, Chen F, Li L, Deng C, Ye LW, Qian PC. Highly Site-Selective Oxidative Cyclization of Ene-ynamides via Non-Noble-Metal Catalysis: Access to Functionalized Lactams. Org Lett 2022; 24:7009-7014. [PMID: 36121648 DOI: 10.1021/acs.orglett.2c02871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, an unprecedented non-noble-metal-catalyzed oxidation/cyclization of ene-ynamides is developed, allowing the synthesis of diversely functionalized lactams in moderate to good yields with excellent diastereoselectivities without the observation of typical cyclopropanation products. In combination with Ellman's tert-butylsulfinimine chemistry, chiral γ-lactams containing three contiguous stereocenters are obtained with high diastereo- and enantioselectivity. Moreover, density functional theory (DFT) calculations indicate that this protocol probably undergoes a carbon cation or proton transfer process.
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Affiliation(s)
- Bo-Han Zhu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China.,State Key Laboratory of Physical Chemistry of Solid Surfaces and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Cang-Hai Shen
- State Key Laboratory of Physical Chemistry of Solid Surfaces and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Min-Ling Nie
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Fumin Zheng
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Chengzhe Huang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Fan Chen
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Long Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Chao Deng
- Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Peng-Cheng Qian
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China
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47
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Regiocontrolled Rh(III)-catalyzed C-C coupling/C-N cyclization mediated by distinctive 1,2-migratory insertion of gem-difluoromethylene allenes: reaction development and mechanistic insight. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Capdevila L, Montilla M, Planas O, Brotons A, Salvador P, Martin-Diaconescu V, Parella T, Luis JM, Ribas X. C sp2-H Amination Reactions Mediated by Metastable Pseudo- Oh Masked Aryl-Co III-nitrene Species. Inorg Chem 2022; 61:14075-14085. [PMID: 35997604 PMCID: PMC9455280 DOI: 10.1021/acs.inorgchem.2c02111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Cobalt-catalyzed C–H amination via M-nitrenoid
species is
spiking the interest of the research community. Understanding this
process at a molecular level is a challenging task, and here we report
a well-defined macrocyclic system featuring a pseudo-Oh aryl-CoIII species that
reacts with aliphatic azides to effect intramolecular Csp2–N bond formation. Strikingly, a putative aryl-Co=NR
nitrenoid intermediate species is formed and is rapidly trapped by
a carboxylate ligand to form a carboxylate masked-nitrene, which functions
as a shortcut to stabilize and guide the reaction to productive intramolecular
Csp2–N bond formation. On one hand, several intermediate
species featuring the Csp2–N bond formed have been
isolated and structurally characterized, and the essential role of
the carboxylate ligand has been proven. Complementarily, a thorough
density functional theory study of the Csp2–N bond
formation mechanism explains at the molecular level the key role of
the carboxylate-masked nitrene species, which is essential to tame
the metastability of the putative aryl-CoIII=NR
nitrene species to effectively yield the Csp2–N
products. The solid molecular mechanistic scheme determined for the
Csp2–N bond forming reaction is fully supported
by both experimental and computation complementary studies. A well-defined pseudo-Oh aryl-CoIII species reacts
with aliphatic azides
to effect intramolecular Csp2−N bond formation via
a carboxylate masked-CoIII-nitrene, which serves as a shortcut
to guide the reaction to productive Csp2−N bond
formation.
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Affiliation(s)
- Lorena Capdevila
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, Girona, E-17003, Catalonia, Spain
| | - Marc Montilla
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, Girona, E-17003, Catalonia, Spain
| | - Oriol Planas
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, Girona, E-17003, Catalonia, Spain
| | - Artur Brotons
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, Girona, E-17003, Catalonia, Spain
| | - Pedro Salvador
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, Girona, E-17003, Catalonia, Spain
| | | | - Teodor Parella
- Servei de RMN, Facultat de Ciències, Universitat Autònoma de Barcelona, Campus UAB, Bellaterra, E-08193 Catalonia, Spain
| | - Josep M Luis
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, Girona, E-17003, Catalonia, Spain
| | - Xavi Ribas
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, Girona, E-17003, Catalonia, Spain
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49
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Zhang SS, Chen SY, Zheng YC, Liu XG, Song JL, Shu B, Zheng T, Xiao L, Cao H. Indazolones Directed Rh(III)‐Catalyzed C‐H Amidation of Arenes. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | | | | | | | - Bing Shu
- Guangdong Pharmaceutical University CHINA
| | - Tao Zheng
- Guangdong Pharmaceutical University CHINA
| | - Lin Xiao
- Guangdong Pharmaceutical University CHINA
| | - Hua Cao
- Guangdong Pharmaceutical University CHINA
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50
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Burg F, Rovis T. Rh(III)-catalyzed Intra- and Intermolecular 3,4-Difunctionalization of 1,3-Dienes via Rh(III)-π-allyl Amidation with 1,4,2-Dioxazolones. ACS Catal 2022; 12:9690-9697. [PMID: 37829170 PMCID: PMC10569259 DOI: 10.1021/acscatal.2c02537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We herein report a modular strategy, which enables Rh(III)-catalyzed diastereoselective 3,4-amino oxygenation and diamination of 1,3-dienes using different O- and N-nucleophiles in combination with readily available 3-substituted 1,4,2-dioxazolones (78 examples, 37-91% yield). Previous attempts to functionalize the internal double bond rested on the use of plain alcoholic solvents as nucleophilic coupling partners thus dramatically limiting the scope of this transformation. We have now identified hexafluoroisopropanol as a non-nucleophilic solvent which allows the use of diverse nucleophiles and greatly expands the scope, including an unprecedented amino hydroxylation to selectively install valuable, unprotected β-amino alcohols across 1,3-dienes. Moreover, various elaborate alcohols prove to be compatible providing unique access to complex organic molecules. Finally, this method is employed in a series of intramolecular reactions to deliver valuable nitrogen heterocycles as well as γ- and δ-lactones.
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Affiliation(s)
- Finn Burg
- Department of Chemistry, Columbia University, New York 10027, United States
| | - Tomislav Rovis
- Department of Chemistry, Columbia University, New York 10027, United States
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