1
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Dong J, Liang Y, Li Y, Guan W, Zhang Q, Fu J. A Catalytic Three-Component Aminofluorination of Unactivated Alkenes with Electron-Rich Amino Sources. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305006. [PMID: 38226424 DOI: 10.1002/advs.202305006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/13/2023] [Indexed: 01/17/2024]
Abstract
We present herein a copper-catalyzed three-component aminofluorination of unactivated alkenes with N-bromodialkylamines and readily available nucleophilic fluoride under the assistance of a bidentate auxiliary. This protocol exhibits excellent functional group tolerance toward a wide range of unactivated alkenes and N-bromodialkylamines to furnish the corresponding β-fluoroalkylamines in a highly regio- and diastereoselective manner. The appropriate choice of nucleophilic fluoro source is essential to make this reaction a reality. Further DFT calculations show that the exothermic ion exchange between external fluoride ion and Cu(II) intermediate provides additional driving force to the irreversible migratory insertion, which offsets the unfavorable reaction energetics associated with the subsequent C(sp3)-F reductive elimination. This finding offers a new avenue to catalytic intermolecular aminofluorination of unactivated alkenes with electron-rich amino sources via a remarkable reductive elimination of Cu(III) species to forge the C(sp3)-F bonds.
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Affiliation(s)
- Junchao Dong
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis and Institute of Functional Material Chemistry, Department of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
| | - Yujie Liang
- Institute of Functional Material Chemistry, Department of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
| | - Yang Li
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis and Institute of Functional Material Chemistry, Department of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
- Warshel Institute for Computational Biology and School of Life and Health Sciences, School of Medicine, The Chinese University of Hong Kong, Shenzhen, 518172, P. R. China
| | - Wei Guan
- Institute of Functional Material Chemistry, Department of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
| | - Qian Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis and Institute of Functional Material Chemistry, Department of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
| | - Junkai Fu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis and Institute of Functional Material Chemistry, Department of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
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2
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Wang L, Wang CL, Li ZH, Lian PF, Kang JC, Zhou J, Hao Y, Liu RX, Bai HY, Zhang SY. Cooperative Cu/azodiformate system-catalyzed allylic C-H amination of unactivated internal alkenes directed by aminoquinoline. Nat Commun 2024; 15:1483. [PMID: 38374064 PMCID: PMC10876528 DOI: 10.1038/s41467-024-45875-y] [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: 10/09/2023] [Accepted: 02/07/2024] [Indexed: 02/21/2024] Open
Abstract
Aliphatic allylic amines are common in natural products and pharmaceuticals. The oxidative intermolecular amination of C(sp3)-H bonds represents one of the most straightforward strategies to construct these motifs. However, the utilization of widely internal alkenes with amines in this transformation remains a synthetic challenge due to the inefficient coordination of metals to internal alkenes and excessive coordination with aliphatic and aromatic amines, resulting in decreasing the reactivity of the catalyst. Here, we present a regioselective Cu-catalyzed oxidative allylic C(sp3)-H amination of internal olefins with azodiformates to these problems. A removable bidentate directing group is used to control the regiochemistry and stabilize the π-allyl-metal intermediate. Noteworthy is the dual role of azodiformates as both a nitrogen source and an electrophilic oxidant for the allylic C-H activation. This protocol features simple conditions, remarkable scope and functional group tolerance as evidenced by >40 examples and exhibits high regioselectivity and excellent E/Z selectivity.
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Affiliation(s)
- Le Wang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, & Key Laboratory of Green and High-End Utilization of Salt Lake Resources, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Cheng-Long Wang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, & Key Laboratory of Green and High-End Utilization of Salt Lake Resources, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Zi-Hao Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, & Key Laboratory of Green and High-End Utilization of Salt Lake Resources, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Peng-Fei Lian
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, & Key Laboratory of Green and High-End Utilization of Salt Lake Resources, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Jun-Chen Kang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, & Key Laboratory of Green and High-End Utilization of Salt Lake Resources, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Jia Zhou
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, & Key Laboratory of Green and High-End Utilization of Salt Lake Resources, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Yu Hao
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, & Key Laboratory of Green and High-End Utilization of Salt Lake Resources, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Ru-Xin Liu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, & Key Laboratory of Green and High-End Utilization of Salt Lake Resources, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - He-Yuan Bai
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, & Key Laboratory of Green and High-End Utilization of Salt Lake Resources, Shanghai Jiao Tong University, Shanghai, 200240, PR China
| | - Shu-Yu Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, & Key Laboratory of Green and High-End Utilization of Salt Lake Resources, Shanghai Jiao Tong University, Shanghai, 200240, PR China.
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3
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Huang Y, Lv X, Tong HR, He W, Bai Z, Wang H, He G, Chen G. Palladium-Catalyzed Enantioselective Directed C(sp 3)-H Functionalization Using C 5-Substituted 8-Aminoquinoline Auxiliaries. Org Lett 2024; 26:94-99. [PMID: 38149595 DOI: 10.1021/acs.orglett.3c03688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
8-Aminoquinoline (AQ) has proven to be a highly effective bidentate directing group for palladium-catalyzed C-H functionalization reactions. However, enantiocontrol of AQ-directed C(sp3)-H functionalization reactions has been challenging. Herein, a new protocol is presented for the Pd-catalyzed enantioselective arylation of unactivated β C(sp3)-H bonds of alkyl carboxamides with aryl iodides using a C5-iodinated 8-aminoquinolines (IQ) auxiliary in conjugation with a BINOL ligand. Additionally, a C5-aryl substituted 8-aminoquinoline auxiliary can facilitate enantioselective alkenylation and alkynylation of benzylic C(sp3)-H bonds of 3-arylpropanamides with the corresponding bromide reagents under similar conditions.
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Affiliation(s)
- Yi Huang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiaoyan Lv
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Hua-Rong Tong
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Wenji He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ziqian Bai
- 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
| | - Gang He
- 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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4
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Yuan X, Zhang Y, Li Y, Yin J, Wang S, Xiong T, Zhang Q. Asymmetric Radical Oxyboration of β-Substituted Styrenes via Late-Stage Stereomutation. Angew Chem Int Ed Engl 2023; 62:e202313770. [PMID: 37819256 DOI: 10.1002/anie.202313770] [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: 09/15/2023] [Revised: 10/11/2023] [Accepted: 10/11/2023] [Indexed: 10/13/2023]
Abstract
Herein, we report an unprecedented copper-catalyzed highly enantio- and diastereoselective radical oxyboration of β-substituted styrenes. The lynchpin of success is ascribed to the development of a late-stage stereomutation strategy, which enables enantioenriched cis-isomers among a couple of early-generated diastereomers to be converted into trans-isomer counterparts, thus fulfilling high diastereocontrol; while the degree of enantio-differentiation is determined by the borocupration process of the C=C bond. This reaction provides an efficient protocol to access enantioenriched trans-1,2- dioxygenation products. The value of this method has further been highlighted in a diversity of follow-up stereospecific transformations and further modifying complex molecules.
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Affiliation(s)
- Xiuping Yuan
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Yiliang Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Yanfei Li
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Jianjun Yin
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Simin Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Tao Xiong
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Qian Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
- Department State Key Laboratory of Organometallic Chemistry, Institution Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
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5
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Feng C, Wu Y. Copper-Catalyzed Bifunctionalization/Annulation of Unactivated Alkene with Alkyl Bromides. J Org Chem 2023; 88:15249-15255. [PMID: 37862612 DOI: 10.1021/acs.joc.3c01746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
β-Lactam is a ubiquitous scaffold in bioactive compounds and pharmaceuticals. Herein, we disclose a streamlined method for the construction of β-lactams starting from unactivated alkenes and alkyl bromides via a Cu-catalyzed inter-/intramolecular carboamidation. This reaction proceeded smoothly under mild reaction conditions and exhibited a broad substrate scope and various functional groups. This protocol is not only compatible with 1, 2, and 3° alkyl bromides but also suitable for α-bromo nitrile as well as various benzyl bromides. The mechanism exploration indicated that sequential radical addition/reductive elimination was involved.
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Affiliation(s)
- Cancan Feng
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yangjie Wu
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
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6
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Ajmeera S, Golagani D, Akondi SM. Ferrocene catalyzed carbohydroxylation of alkenes using H 2O and cycloketone oxime esters. Org Biomol Chem 2023; 21:8482-8487. [PMID: 37853953 DOI: 10.1039/d3ob01481a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
A cyanoalkyl-hydroxylation reaction of aryl alkenes has been successfully devised, employing ferrocene as a catalyst for the addition of a cycloketone oxime ester and H2O across the double bond of the alkene. This environmentally friendly approach employs a solvent mixture consisting of water and demonstrates redox neutrality, along with exceptional regio- and chemoselectivity, leading to the formation of diverse distal hydroxy-nitrile compounds. Moreover, this research presents noteworthy contributions in terms of late-stage functionalization of complex molecules and offers valuable insights into the mechanistic aspects of the reaction.
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Affiliation(s)
- Sriram Ajmeera
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad-500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Durga Golagani
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad-500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Srirama Murthy Akondi
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad-500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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7
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Hao Y, Li ZH, Ma ZG, Liu RX, Ge RT, Li QZ, Ding TM, Zhang SY. Axially chiral styrene-based organocatalysts and their application in asymmetric cascade Michael/cyclization reaction. Chem Sci 2023; 14:9496-9502. [PMID: 37712017 PMCID: PMC10498726 DOI: 10.1039/d3sc02705h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 08/16/2023] [Indexed: 09/16/2023] Open
Abstract
An axially chiral styrene-based organocatalyst, featuring a combination of axially chiral styrene-based structure and a pyrrole ring, has been designed and synthesized. This catalyst demonstrates remarkable capabilities in producing a wide range of densely substituted spirooxindoles that feature an alkyne-substituted quaternary stereogenic center. These spirooxindoles are generated through mild cascade Michael/cyclization reactions, resulting in high conversion rates and exceptional enantioselectivity. Our catalytic model, based on experiments, X-ray structure analysis and DFT calculations suggests that chiral matched π-π interactions and multiple H-bonds between the organocatalyst and substrates play significant roles in controlling the stereoselectivity of the reaction.
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Affiliation(s)
- Yu Hao
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Zi-Hao Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Zhi-Gang Ma
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Ru-Xin Liu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Rui-Tian Ge
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Quan-Zhe Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Tong-Mei Ding
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Shu-Yu Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 P. R. China
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8
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Zheng YL, Liang DY, Ma HB, Meng FC, Wang T. Regio- and chemoselective hydroamination of unactivated alkenes with anthranils via NiH-catalysis. Chem Commun (Camb) 2023; 59:2751-2754. [PMID: 36779354 DOI: 10.1039/d2cc07052a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
A NiH-catalyzed polarity-reversed hydroamination of β,γ-, γ,δ- and δ,ε-unsaturated alkenes with electrophilic anthranils was developed. This reaction proceeds in a highly regio- and chemoselective manner to afford γ, δ and ε-arylamines bearing a carbonyl or alcohol functionality with 100% atom efficiency. Preliminary mechanistic studies indicate that the chemoselectivity is controlled by the base and the alcohol product is derived from the base-catalyzed hydrosilylation of the CO bond.
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Affiliation(s)
- Yan-Long Zheng
- Tianjin Key Laboratory of Drug Targeting and Bioimaging, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin, 300384, P. R. China.
| | - Di-Yu Liang
- Tianjin Key Laboratory of Drug Targeting and Bioimaging, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin, 300384, P. R. China.
| | - Hong-Bin Ma
- Tianjin Key Laboratory of Drug Targeting and Bioimaging, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin, 300384, P. R. China.
| | - Fan-Cheng Meng
- Tianjin Key Laboratory of Drug Targeting and Bioimaging, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin, 300384, P. R. China.
| | - Tie Wang
- Tianjin Key Laboratory of Drug Targeting and Bioimaging, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin, 300384, P. R. China.
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9
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Qi J, Song T, Yang Z, Sun S, Tung CH, Xu Z. Simultaneous Dual Cu/Ir Catalysis: Stereodivergent Synthesis of Chiral β-Lactams with Adjacent Tertiary/Quaternary/Tertiary Stereocenters. ACS Catal 2023. [DOI: 10.1021/acscatal.2c04926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- Jialin Qi
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China
| | - Tingting Song
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, No. 27 South Shanda Road, Jinan 250100, China
| | - Zhenning Yang
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, No. 27 South Shanda Road, Jinan 250100, China
| | - Shuzhe Sun
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, No. 27 South Shanda Road, Jinan 250100, China
| | - Chen-Ho Tung
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, No. 27 South Shanda Road, Jinan 250100, China
| | - Zhenghu Xu
- Key Lab for Colloid and Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, No. 27 South Shanda Road, Jinan 250100, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, 18 Shilongshan Road, Hangzhou 310024, China
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10
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Divergent regioselective Heck-type reaction of unactivated alkenes and N-fluoro-sulfonamides. Nat Commun 2022; 13:6297. [PMID: 36272976 PMCID: PMC9588056 DOI: 10.1038/s41467-022-33996-1] [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] [Received: 06/09/2022] [Accepted: 10/10/2022] [Indexed: 12/02/2022] Open
Abstract
The control of regioselectivity in Heck-type reaction of unactivated alkenes represents a longstanding challenge due to several detachable hydrogens in β–H elimination step, which generally afford either one specific regioisomer or a mixture. Herein, a copper-catalyzed intermolecular Heck-type reaction of unactivated alkenes and N-fluoro-sulfonamides with divergent regioselectivities is reported. The complete switch of regioselectivity mainly depends on the choice of different additives. Employment of alcohol solvent gives access to vinyl products, while the addition of carboxylate leads to the formation of allylic products. In addition, exclusion of these two promoting factors results in β-lactams via a C–N reductive elimination. This protocol shows a broad substrate scope for both alkenes and structurally diverse N-fluoro-sulfonamides, producing the corresponding products with excellent regio- and stereoselectivities. Further control experiments and DFT calculations provide in-depth insights into the reaction mechanism, highlighting the distinct effect of the additives on a bidentate auxiliary-stabilized Cu(III) intermediate. The control of regioselectivity in Heck-type reactions of unactivated alkenes is challenging. Here, the authors realize regiodivergent Heck-type reactions of unactivated alkenes and N-fluoro-sulfonamides.
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11
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Cheng XY, Zhang YF, Wang JH, Gu QS, Li ZL, Liu XY. A Counterion/Ligand-Tuned Chemo- and Enantioselective Copper-Catalyzed Intermolecular Radical 1,2-Carboamination of Alkenes. J Am Chem Soc 2022; 144:18081-18089. [PMID: 36153984 DOI: 10.1021/jacs.2c08035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The copper-catalyzed enantioselective intermolecular radical 1,2-carboamination of alkenes with readily accessible alkyl halides is an appealing strategy for producing chiral amine scaffolds. The challenge arises from the easily occurring atom transfer radical addition between alkyl halides and alkenes and the issue of enantiocontrol. We herein describe a radical alkene 1,2-carboamination with sulfoximines in a highly chemo- and enantioselective manner. The key to the success of this process is the conceptual design of a counterion/highly sterically demanded ligand coeffect to promote the ligand exchange of copper(I) with sulfoximines and forge chiral C-N bonds between alkyl radicals and the chiral copper(II) complex. The reaction covers alkenes bearing distinct electronic properties, such as aryl-, heteroaryl-, carbonyl-, and aminocarbonyl-substituted ones, and various radical precursors, including alkyl chlorides, bromides, iodides, and the CF3 source. Facile transformations deliver many chiral amine building blocks of interest in organic synthesis and related areas.
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Affiliation(s)
- Xian-Yan Cheng
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yu-Feng Zhang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jia-Huan Wang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qiang-Shuai Gu
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhong-Liang Li
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xin-Yuan Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
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12
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Zhao W, Chen KZ, Li AZ, Li BJ. Remote Stereocenter through Amide-Directed, Rhodium-Catalyzed Enantioselective Hydroboration of Unactivated Internal Alkenes. J Am Chem Soc 2022; 144:13071-13078. [PMID: 35830595 DOI: 10.1021/jacs.2c05993] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Despite the frequent occurrence of γ-branched amines in bioactive molecules, the direct catalytic asymmetric synthesis of this structural motif containing a remote stereocenter remains an important synthetic challenge. Here, we report an amide-directed, rhodium-catalyzed highly diastereo- and enantioselective hydroboration of unactivated internal alkenes. This method provided facile access to enantioenriched amines containing β,γ-vicinal stereocenters. The application of this strategy to the synthesis of bioactive molecules was demonstrated. Computational studies indicated that migratory insertion of the alkene into rhodium hydride controls the enantioselectivity.
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Affiliation(s)
- Wei Zhao
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Ke-Zhi Chen
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - An-Zhen Li
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Bi-Jie Li
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China.,Beijing National Laboratory for Molecular Sciences, Beijing 100190, China.,Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
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13
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Li M, Li Y, Jia WY, Sun GQ, Gao F, Zhao GX, Qiu YF, Wang XC, Liang YM, Quan ZJ. Directed Copper-Catalyzed Tandem Radical Cyclization Reaction of Alkyl Bromides and Unactivated Olefins. Org Lett 2022; 24:2738-2743. [PMID: 35357833 DOI: 10.1021/acs.orglett.2c00835] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The free radical cyclization reaction is a promising strategy for ring framework formation. Herein, we report a copper-catalyzed tandem radical cyclization strategy for preparing substituted lactam derivatives. This reaction proceeds through a radical coupling approach, which not only allows a wide range of alkenes but also is quite compatible with the primary, secondary, and tertiary radicals. In addition, density functional theory calculations were performed to gain insights into the reaction mechanism.
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Affiliation(s)
- Ming Li
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Yuke Li
- Department of Chemistry and Centre for Scientific Modeling and Computation, Chinese University of Hong Kong, Shatin, Hong Kong 999077, China
| | - Wan-Yuan Jia
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Guo-Qing Sun
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Fan Gao
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Guo-Xiao Zhao
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Yi-Feng Qiu
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Xi-Cun Wang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Zheng-Jun Quan
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China
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14
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Jiang HM, Qin JH, Sun Q, Zhang D, Jiang JP, Ouyang XH, Song RJ, Li JH. Copper-promoted cross-coupling of nitroarenes with 4-alkyl-1,4-dihydropyridines using a peroxide-driven radical reductive strategy. Org Chem Front 2022. [DOI: 10.1039/d2qo00706a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Direct radical-mediated reductive coupling of nitroarenes with 4-alkyl-1,4-dihydropyridines to build the C(sp3)–N bond using 4-alkyl-1,4-dihydropyridines as internal reducing agents and alkyl sources is presented.
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Affiliation(s)
- Hui-Min Jiang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jing-Hao Qin
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Qing Sun
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Dong Zhang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Peng Jiang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Xuan-Hui Ouyang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 475004, China
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15
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Yao Z, Zhang X, Luo Z, Pan Y, Zhao H, Li B, Xu L, Shi Q, Fan Q. Na
2
S
2
O
8
‐Mediated Tandem One‐Pot Construction of 3,3‐Disubsituted 3,4‐Dihydroquinoxalin‐2(1
H
)‐ones with 4‐Alkyl‐1,4‐dihydropyridines as Alkyl Radical Sources. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zhen Yao
- Department of Chemistry Renmin University of China Beijing 100872 P. R. China
| | - Xin Zhang
- Department of Chemistry Renmin University of China Beijing 100872 P. R. China
| | - Zhenli Luo
- Department of Chemistry Renmin University of China Beijing 100872 P. R. China
| | - Yixiao Pan
- Department of Chemistry Renmin University of China Beijing 100872 P. R. China
| | - Haoqiang Zhao
- Department of Chemistry Renmin University of China Beijing 100872 P. R. China
| | - Bohan Li
- Department of Chemistry Renmin University of China Beijing 100872 P. R. China
| | - Lijin Xu
- Department of Chemistry Renmin University of China Beijing 100872 P. R. China
| | - Qian Shi
- College of Chemistry & Materials Engineering Wenzhou University Wenzhou 325035 P. R. China
| | - Qing‐Hua Fan
- Institute of Chemistry Chinese Academy of Sciences
- University of Chinese Academy of Sciences Beijing 100190 P. R. China
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16
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Xia L, Wu Y, Lin C, Gao F, Shen L. Palladium‐Catalyzed Selective Hydroamination of Aliphatic Alkenes with Hydrazides. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100742] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Lanlan Xia
- College of Chemistry and Chemical Engineering Jiangxi Science & Technology Normal University Nanchang 330013 P. R. China
| | - Yundan Wu
- College of Chemistry and Chemical Engineering Jiangxi Science & Technology Normal University Nanchang 330013 P. R. China
| | - Cong Lin
- College of Chemistry and Chemical Engineering Jiangxi Science & Technology Normal University Nanchang 330013 P. R. China
| | - Fei Gao
- Jiangxi Engineering Laboratory of Waterborne Coatings College of Chemistry and Chemical Engineering Jiangxi Science & Technology Normal University Nanchang 330022 P. R. China
| | - Liang Shen
- Jiangxi Engineering Laboratory of Waterborne Coatings College of Chemistry and Chemical Engineering Jiangxi Science & Technology Normal University Nanchang 330022 P. R. China
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17
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Wei L, Wang M, Zhao Y, Fang Y, Zhao Z, Xia B, Yu W, Chang J. Synthesis of 1,4-Dihydropyridines and Related Heterocycles by Iodine-Mediated Annulation Reactions of N-Cyclopropyl Enamines. Org Lett 2021; 23:9625-9630. [PMID: 34846145 DOI: 10.1021/acs.orglett.1c03859] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The annulation of N-cyclopropyl enamines to produce 1,4-dihydropyridine (1,4-DHP) derivatives is described. In the presence of molecular iodine (I2), an N-cyclopropyl enamine substrate undergoes iodination, opening of the cyclopropyl ring, and annulation with a second molecule of the substrate to form the 1,4-DHP product. This reaction is amenable to gram-scale operations under mild reaction conditions with no transition metals being required. Further transformations of the 1,4-DHPs leads to related pyridine and bicyclic frameworks.
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Affiliation(s)
- Lanlan Wei
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province 450001, People's Republic of China
| | - Manman Wang
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province 450001, People's Republic of China
| | - Yifei Zhao
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province 450001, People's Republic of China
| | - Yingchao Fang
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province 450001, People's Republic of China
| | - Zongxiang Zhao
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province 450001, People's Republic of China
| | - Biao Xia
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province 450001, People's Republic of China
| | - Wenquan Yu
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province 450001, People's Republic of China
| | - Junbiao Chang
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province 450001, People's Republic of China
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18
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Orlandi M, Escudero-Casao M, Licini G. Cu(I)–Bis(phosphine) Dioxides as Catalysts for the Enantioselective α-Arylation of Carbonyl Compounds. Synlett 2021. [DOI: 10.1055/a-1503-7339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractThe transition-metal-catalyzed α-arylation of carbonyl compounds was first reported by Buchwald and Hartwig in 1997. This transformation has been used and studied extensively over the last two decades. Enantioselective variants were also developed that allow for controlling the product stereochemistry. However, these suffer several limitations in the context of formation of tertiary stereocenters. Presented here is our group’s contribution to this research area. The chiral Cu-bis(phosphine) dioxides catalytic system that we reported allowed accessing the enantioselective α-arylation of ketones that were not suitable for this transformation before in good yields and er up to 97.5:2.5. Preliminary insight and speculation concerning the reaction mechanism involving the unusual pairing of bis(phosphine) dioxides with transition-metal catalysts is also given.1 Introduction2 State of the Art3 Enantioselective α-Arylation of Acyclic Ketones4 Summary and Conclusions
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19
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Xiong T, Zhang Q. Recent advances in the direct construction of enantioenriched stereocenters through addition of radicals to internal alkenes. Chem Soc Rev 2021; 50:8857-8873. [PMID: 34279014 DOI: 10.1039/d1cs00208b] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The development of new synthetic methods involving radical intermediates to control the absolute configuration of newly formed stereocenters has seen unprecedented growth in the past few decades. Despite significant advances in this topic, catalytic asymmetric direct construction of stereocenters through addition of radicals to internal alkenes is of special interest due to its potential to simultaneously build (more than) two consecutive stereogenic centers. Methodologies such as chiral Lewis acid catalysis, organocatalysis, and transition metal catalysis have been successfully leveraged to exert enantiocontrol in this challenging domain. This tutorial review highlights the recent significant progress in the realm of rapidly and conveniently building enantioenriched stereocenters via addition of radicals to internal alkenes, with an emphasis on mechanistic scenarios governing the absolute stereochemistry and unmet challenges in this emerging and promising field.
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Affiliation(s)
- Tao Xiong
- Department of Chemistry, Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Northeast Normal University, Changchun 130024, China.
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20
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Gan Z, Zhang K, Shi P, Zhao Y, Zeng R. Copper(i)-catalyzed radical carboamination reaction of 8-aminoquinoline-oriented buteneamides with chloroform: synthesis of-β-lactams. RSC Adv 2021; 11:28081-28084. [PMID: 35480755 PMCID: PMC9037986 DOI: 10.1039/d1ra05233k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 08/11/2021] [Indexed: 11/21/2022] Open
Abstract
A novel Cu(CH3CN)4PF6-catalyzed carboamination reaction of 8-aminoquinoline-oriented buteneamides with chloroform to afford 4-(2,2,2-trichloroethyl)-β-lactams is described. The reaction proceeded at 110 °C in air with di-t-butyl peroxide. Preliminary studies indicated that the reaction undergoes a free radical mechanism via a Cu(i)/Cu(ii)/Cu(iii) catalytic cycle.
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Affiliation(s)
- Zixu Gan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry Chemical Engineering and Materials Science, Soochow University Suzhou Jiangsu 215123 China
| | - Ke Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry Chemical Engineering and Materials Science, Soochow University Suzhou Jiangsu 215123 China
| | - Peng Shi
- Institute of Organic Chemistry, RWTH Aachen University Landoltweg1 52074 Aachen Germany
| | - Yingsheng Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry Chemical Engineering and Materials Science, Soochow University Suzhou Jiangsu 215123 China
| | - Runsheng Zeng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry Chemical Engineering and Materials Science, Soochow University Suzhou Jiangsu 215123 China
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21
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Wu FP, Wu XF. Pd/Cu-Catalyzed amide-enabled selectivity-reversed borocarbonylation of unactivated alkenes. Chem Sci 2021; 12:10341-10346. [PMID: 34377419 PMCID: PMC8336481 DOI: 10.1039/d1sc02785a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 06/28/2021] [Indexed: 12/14/2022] Open
Abstract
The addition reaction between CuBpin and alkenes to give a terminal boron substituted intermediate is usually fast and facile. In this communication, a selectivity-reversed procedure has been designed and established. This selectivity-reversed borocarbonylation reaction is enabled by a cooperative action between palladium and copper catalysts and proceeds with complete regioselectivity. The key to the success of this transformation is the coordination of the amide group and slower CuBpin formation by using KHCO3 as the base. A wide range of β-boryl ketones were produced from terminal unactivated aliphatic alkenes and aryl iodides. Further synthetic transformations of the obtained β-boryl ketones have been developed as well. A selectivity-reversed borocarbonylation reaction has been developed with complete regioselectivity.![]()
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Affiliation(s)
- Fu-Peng Wu
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock Albert-Einstein-Straße 29a 18059 Rostock Germany .,Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 Liaoning China
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22
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Ni HQ, Li ZQ, Tran VT, Engle KM. Modular synthesis of non-conjugated N-(quinolin-8-yl) alkenyl amides via cross-metathesis. Tetrahedron 2021; 93:132279. [PMID: 34393281 PMCID: PMC8360400 DOI: 10.1016/j.tet.2021.132279] [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] [Indexed: 10/21/2022]
Abstract
We report a direct and modular method to access non-conjugated alkenyl amides containing the 8-aminoquinoline (AQ) directing auxiliary and related groups via cross-metathesis. In this way, readily available, AQ-containing, terminal β,γ-unsaturated amides can be coupled with various terminal alkenes to furnish internal alkene products that are otherwise difficult to prepare. The value of this family of products stems from their ability to participate in a number of directed alkene functionalization reactions.
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Affiliation(s)
- Hui-Qi Ni
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Zi-Qi Li
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Van T Tran
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Keary M Engle
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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23
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Luo X, Wang P. Ynonylation of Acyl Radicals by Electroinduced Homolysis of 4-Acyl-1,4-dihydropyridines. Org Lett 2021; 23:4960-4965. [PMID: 34155886 DOI: 10.1021/acs.orglett.1c01243] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Herein we report the conversion of 4-acyl-1,4-dihydropyridines (DHPs) into ynones under electrochemical conditions. The reaction proceeds via the homolysis of acyl-DHP under electron activation. The resulting acyl radicals react with hypervalent iodine(III) reagents to form the target ynones or ynamides in acceptable yields. This mild reaction condition allows wider functionality tolerance that includes halides, carboxylates, or alkenes. The synthetic utility of this methodology is further demonstrated by the late-stage modification of complex molecules.
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Affiliation(s)
- Xiaosheng Luo
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ping Wang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
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24
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Landge VG, Grant AJ, Fu Y, Rabon AM, Payton JL, Young MC. Palladium-Catalyzed γ,γ'-Diarylation of Free Alkenyl Amines. J Am Chem Soc 2021; 143:10352-10360. [PMID: 34161068 DOI: 10.1021/jacs.1c04261] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The direct difunctionalization of alkenes is an effective way to construct multiple C-C bonds in one-pot using a single functional group. The regioselective dicarbofunctionalization of alkenes is therefore an important area of research to rapidly obtain complex organic molecules. Herein, we report a palladium-catalyzed γ,γ'-diarylation of free alkenyl amines through interrupted chain walking for the synthesis of Z-selective alkenyl amines. Notably, while 1,3-dicarbofunctionalization of allyl groups is well precedented, the present disclosure allows 1,3-dicarbofunctionalization of highly substituted allylamines to give highly Z-selective trisubsubstituted olefin products. This cascade reaction operates via an unprotected amine-directed Mizoroki-Heck (MH) pathway featuring a β-hydride elimination to selectively chain walk to furnish a new terminal olefin which then generates the cis-selective alkenyl amines around the sterically crowded allyl moiety. This operationally simple protocol is applicable to a variety of cyclic, branched, and linear secondary and tertiary alkenylamines, and has a broad substrate scope with regard to the arene coupling partner as well. Mechanistic studies have been performed to help elucidate the mechanism, including the presence of a likely unproductive side C-H activation pathway.
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Affiliation(s)
- Vinod G Landge
- Department of Chemistry & Biochemistry, School of Green Chemistry & Engineering, The University of Toledo, 2801 W. Bancroft St., Mailstop 602, Toledo, Ohio 43606, United States of America
| | - Aaron J Grant
- Department of Chemistry & Biochemistry, School of Green Chemistry & Engineering, The University of Toledo, 2801 W. Bancroft St., Mailstop 602, Toledo, Ohio 43606, United States of America
| | - Yu Fu
- Department of Chemistry & Biochemistry, School of Green Chemistry & Engineering, The University of Toledo, 2801 W. Bancroft St., Mailstop 602, Toledo, Ohio 43606, United States of America
| | - Allison M Rabon
- Department of Chemistry & Biochemistry, School of Green Chemistry & Engineering, The University of Toledo, 2801 W. Bancroft St., Mailstop 602, Toledo, Ohio 43606, United States of America
| | - John L Payton
- Department of Chemistry & Biochemistry, School of Green Chemistry & Engineering, The University of Toledo, 2801 W. Bancroft St., Mailstop 602, Toledo, Ohio 43606, United States of America.,Department of Chemistry, Kenyon College, 106 College Park Dr., Gambier, Ohio 43022, United States of America
| | - Michael C Young
- Department of Chemistry & Biochemistry, School of Green Chemistry & Engineering, The University of Toledo, 2801 W. Bancroft St., Mailstop 602, Toledo, Ohio 43606, United States of America
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25
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Brakestad A, Wind P, Jensen SR, Frediani L, Hopmann KH. Multiwavelets applied to metal-ligand interactions: Energies free from basis set errors. J Chem Phys 2021; 154:214302. [PMID: 34240981 DOI: 10.1063/5.0046023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Transition metal-catalyzed reactions invariably include steps where ligands associate or dissociate. In order to obtain reliable energies for such reactions, sufficiently large basis sets need to be employed. In this paper, we have used high-precision multiwavelet calculations to compute the metal-ligand association energies for 27 transition metal complexes with common ligands, such as H2, CO, olefins, and solvent molecules. By comparing our multiwavelet results to a variety of frequently used Gaussian-type basis sets, we show that counterpoise corrections, which are widely employed to correct for basis set superposition errors, often lead to underbinding. Additionally, counterpoise corrections are difficult to employ when the association step also involves a chemical transformation. Multiwavelets, which can be conveniently applied to all types of reactions, provide a promising alternative for computing electronic interaction energies free from any basis set errors.
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Affiliation(s)
- Anders Brakestad
- Hylleraas Centre for Quantum Molecular Sciences, UiT The Arctic University of Norway, 9037 Tromsø, Norway
| | - Peter Wind
- Hylleraas Centre for Quantum Molecular Sciences, UiT The Arctic University of Norway, 9037 Tromsø, Norway
| | - Stig Rune Jensen
- Hylleraas Centre for Quantum Molecular Sciences, UiT The Arctic University of Norway, 9037 Tromsø, Norway
| | - Luca Frediani
- Hylleraas Centre for Quantum Molecular Sciences, UiT The Arctic University of Norway, 9037 Tromsø, Norway
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26
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Tao Q, Li YN, Tang WJ, Liu PY, Yu F, He YP. Di-ortho-C H arylation of phenylalanine: A bimetallic interaction between Pd(IV)-Ag(I). Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153158] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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27
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Yang D, Huang H, Zhang H, Yin LM, Song MP, Niu JL. Regioselective Intermolecular Hydroamination of Unactivated Alkenes: “Co–H” Enabled Remote Functionalization. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00625] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Dandan Yang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - He Zhang
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Li-Ming Yin
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Mao-Ping Song
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jun-Long Niu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
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28
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Li Y, Ali A, Dong J, Zhang Y, Shi L, Liu Q, Fu J. Copper-Catalyzed Diamination of Unactivated Alkenes With Electron-Rich Amino Sources. Org Lett 2021; 23:4072-4077. [PMID: 33970646 DOI: 10.1021/acs.orglett.1c01313] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The catalytic intermolecular diamination of unactivated alkenes with electron-rich amino sources is a challenge. Herein, by employing a directing-group strategy, a copper-catalyzed diamination of unactivated alkenes was realized. Symmetrical diamines were efficiently produced in a highly diastereoselective manner with readily available dialkylamines as amino sources, while a one-pot and two-step operation was necessary to produce the unsymmetrical diamines. These reactions were proposed to proceed through aziridinium intermediates.
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Affiliation(s)
- Yang Li
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Arshad Ali
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Junchao Dong
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yu Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Lili Shi
- State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics, Shenzhen Graduate School, Peking University, Shenzhen 518055, China
| | - Qun Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Junkai Fu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China.,State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics, Shenzhen Graduate School, Peking University, Shenzhen 518055, China
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29
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Ye J, Bellotti P, Paulisch TO, Daniliuc CG, Glorius F. Durch sichtbares Licht vermittelte Cycloadditionen von α‐Ketoacylsilanen mit Iminen: Einfache Synthese von β‐Lactamen. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102451] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jian‐Heng Ye
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Peter Bellotti
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Tiffany O. Paulisch
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Constantin G. Daniliuc
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Frank Glorius
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
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30
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Ye JH, Bellotti P, Paulisch TO, Daniliuc CG, Glorius F. Visible-Light-Induced Cycloaddition of α-Ketoacylsilanes with Imines: Facile Access to β-Lactams. Angew Chem Int Ed Engl 2021; 60:13671-13676. [PMID: 33729650 DOI: 10.1002/anie.202102451] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/09/2021] [Indexed: 11/06/2022]
Abstract
We report the synthesis of β-lactams from α-ketoacylsilanes and imines, which proceeds via a formal [2+2] photochemical cycloaddition with in situ generation of siloxyketene. This mild and operationally simple reaction proceeds in an atom-economic fashion with broad substrate scope, including aldimines, ketimines, hydrazones, and fused nitrogen heterocycles, affording a variety of important β-lactams with satisfactory diastereoselectivities in most cases. This reaction also features good functional-group tolerance, facile scalability and product diversification. Experimental and computational studies suggest that α-ketoacylsilanes can serve as photochemical precursors by engaging in a 1,3 silicon shift to the distal carbonyl group.
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Affiliation(s)
- Jian-Heng Ye
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Peter Bellotti
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Tiffany O Paulisch
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Münster, Germany
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31
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Zhang H, Lv X, Yu H, Bai Z, Chen G, He G. β-Lactam Synthesis via Copper-Catalyzed Directed Aminoalkylation of Unactivated Alkenes with Cyclobutanone O-Benzoyloximes. Org Lett 2021; 23:3620-3625. [DOI: 10.1021/acs.orglett.1c01007] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Heng Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiaoyan Lv
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Hanrui Yu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zibo Bai
- 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
| | - Gang He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
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32
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Escudero-Casao M, Licini G, Orlandi M. Enantioselective α-Arylation of Ketones via a Novel Cu(I)-Bis(phosphine) Dioxide Catalytic System. J Am Chem Soc 2021; 143:3289-3294. [PMID: 33635068 PMCID: PMC8041290 DOI: 10.1021/jacs.0c13236] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Indexed: 12/15/2022]
Abstract
A novel catalytic system based on copper(I) and chiral bis(phosphine) dioxides is described. This allows the arylation of silyl enol ethers to access enolizable α-arylated ketones in good yields and enantiomeric excess up to 95%. Noncyclic ketones are amenable substrates with this method, which complements other approaches based on palladium catalysis. Optimization of the ligand structure is accomplished via rational design driven by correlation analysis. Preliminary mechanistic hypotheses are also evaluated in order to identify the role of chiral bis(phosphine) dioxides.
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Affiliation(s)
| | - Giulia Licini
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
- CIRCC−Consorzio Interuniversitario
per le Reattività Chimiche e la Catalisi, University of Padova, via Marzolo 1, 35131 Padova, Italy
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33
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Wu J, Qian B, Lu L, Yang H, Shang Y, Zhang J. Access to the C2 C–H olefination, alkylation and deuteration of indoles by rhodium( iii) catalysis: an opportunity for diverse syntheses. Org Chem Front 2021. [DOI: 10.1039/d1qo00133g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A concise approach for a diversity-oriented synthesis via regioselective C2 C–H olefination, alkylation, and deuteration of indoles by Rh(iii) catalysis is described.
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Affiliation(s)
- Jiaping Wu
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
| | - Baiyang Qian
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
| | - Lili Lu
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
| | - Haitao Yang
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
| | - Jitan Zhang
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
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