1
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Xu W, Fan C, Hu X, Xu T. Deoxygenative Transformation of Alcohols via Phosphoranyl Radical from Exogenous Radical Addition. Angew Chem Int Ed Engl 2024; 63:e202401575. [PMID: 38357753 DOI: 10.1002/anie.202401575] [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: 01/23/2024] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 02/16/2024]
Abstract
A general approach to the direct deoxygenative transformation of primary, secondary, and tertiary alcohols has been developed. It undergoes through phosphoranyl radical intermediates generated by the addition of exogenous iodine radical to trivalent alkoxylphosphanes. Since these alkoxylphosphanes are readily in situ obtained from alcohols and commercially available, inexpensive chlorodiphenylphosphine, a diverse range of alcohols with various functional groups can be utilized to proceed deoxygenative cross-couplings with alkenes or aryl iodides. The selective transformation of polyhydroxy substrates and the rapid synthesis of complex organic molecules are also demonstrated with this method.
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Affiliation(s)
- Wenhao Xu
- Shanghai Key Laboratory of Chemical Assessment and Sustain-ability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, 200092, Shanghai, P. R. China
| | - Chao Fan
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Xile Hu
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Tao Xu
- Shanghai Key Laboratory of Chemical Assessment and Sustain-ability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, 200092, Shanghai, P. R. China
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2
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Zhang LL, Gao YZ, Cai SH, Yu H, Shen SJ, Ping Q, Yang ZP. Ni-catalyzed enantioconvergent deoxygenative reductive cross-coupling of unactivated alkyl alcohols and aryl bromides. Nat Commun 2024; 15:2733. [PMID: 38548758 PMCID: PMC10979021 DOI: 10.1038/s41467-024-46713-x] [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: 09/14/2023] [Accepted: 03/07/2024] [Indexed: 04/01/2024] Open
Abstract
Transition metal-catalyzed enantioconvergent cross-coupling of an alkyl precursor presents a promising method for producing enantioenriched C(sp3) molecules. Because alkyl alcohol is a ubiquitous and abundant family of feedstock in nature, the direct reductive coupling of alkyl alcohol and aryl halide enables efficient access to valuable compounds. Although several strategies have been developed to overcome the high bond dissociation energy of the C - O bond, the asymmetric pattern remains unknown. In this report, we describe the realization of an enantioconvergent deoxygenative reductive cross-coupling of unactivated alkyl alcohol (β-hydroxy ketone) and aryl bromide in the presence of an NHC activating agent. The approach can accommodate substituents of various sizes and functional groups, and its synthetic potency is demonstrated through a gram scale reaction and derivatizations into other compound families. Finally, we apply our convergent method to the efficient asymmetric synthesis of four β-aryl ketones that are natural products or bioactive compounds.
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Affiliation(s)
- Li-Li Zhang
- School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, People's Republic of China
| | - Yu-Zhong Gao
- Key Laboratory of Magnetic Molecules, Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Taiyuan, 030031, People's Republic of China
| | - Sheng-Han Cai
- School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, People's Republic of China
| | - Hui Yu
- School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, People's Republic of China
| | - Shou-Jie Shen
- Key Laboratory of Magnetic Molecules, Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Taiyuan, 030031, People's Republic of China
| | - Qian Ping
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, People's Republic of China
| | - Ze-Peng Yang
- School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, People's Republic of China.
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3
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Yang H, Zhang Z, Cao P, Yang T. Nickel-Catalyzed Reductive Alkene Cross-Dialkylation with Unactivated Alkyl Electrophiles. Org Lett 2024; 26:1190-1195. [PMID: 38308849 DOI: 10.1021/acs.orglett.3c04207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2024]
Abstract
A Ni-catalyzed reductive dialkylation of 8-aminoquinoline-tethered aliphatic alkenes with two unactivated alkyl electrophiles is disclosed here. Key to the development of this transformation is the combination of primary alkyl (pseudo)halides and secondary alkyl iodides that produce products in a single regioselective manner. The reaction exhibits good functional group compatibility, and its synthetic utility was demonstrated by the concise synthesis of the precursors of biologically relevant molecules.
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Affiliation(s)
- Huixia Yang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Zeming Zhang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Panting Cao
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Tao Yang
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
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4
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Guo F, Shan S, Gong X, Dai C, Quan Z, Cheng X, Fan X. Deuteration Degree-Controllable Methylation via a Cascade Assembly Strategy using Methylamine-Water as Methyl Source. Chemistry 2023; 29:e202301458. [PMID: 37222652 DOI: 10.1002/chem.202301458] [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: 05/08/2023] [Revised: 05/24/2023] [Accepted: 05/24/2023] [Indexed: 05/25/2023]
Abstract
We present a novel and effective photocatalytic method for the methylation of β-diketones with controllable degrees of deuterium incorporation via development of new methyl sources. By utilizing a methylamine-water system as the methyl precursor and a cascade assembly strategy for deuteration degree control, we synthesized methylated compounds with varying degrees of deuterium incorporation, showcasing the versatility of this approach. We examined a range of β-diketone substrates and synthesized key intermediates for drug and bioactive compounds with varying degrees of deuterium incorporation, ranging from 0 to 3. We also investigated and discussed the postulated reaction pathway. This work demonstrates the utility of readily available reagents, methylamines and water, as a new methyl source, and provides a simple and efficient strategy for the synthesis of degree-controllable deuterium-labelled compounds.
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Affiliation(s)
- Fuhu Guo
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, China
- Synthetic and Functional Biomolecules Center, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Shiquan Shan
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xu Gong
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Cancan Dai
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Zhengjun Quan
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, China
| | - Xiamin Cheng
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xinyuan Fan
- Synthetic and Functional Biomolecules Center, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
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5
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Han D, Sun J, Jin J. Picolinamide Ligands: Nickel-Catalyzed Reductive Cross-Coupling of Aryl Bromides with Bromocyclopropane and Beyond. Chem Asian J 2023; 18:e202201132. [PMID: 36479828 DOI: 10.1002/asia.202201132] [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: 11/08/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/12/2022]
Abstract
The arylcyclopropane motif as the combination of aryl and cyclopropyl ring systems can be found in an increasing amount of approved and investigational drugs. Herein, we have developed a mild, efficient nickel-catalyzed reductive cross-coupling protocol, featuring a simple Ni(II) precatalyst and a novel picolinamide NN2 pincer ligand. A variety of (hetero)aryl bromides could successfully couple with cyclopropyl bromide to furnish the valued arylcyclopropanes in good to excellent yields. This method is applicable to other alkyl bromides as well. Notably, the reaction is tolerant of a broad range of functionalities including free amines. Furthermore, the synthesis of several significant intermediates of bioactive molecules was achieved in grams, proving the practicability of this method.
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Affiliation(s)
- Dongyang Han
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Jie Sun
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Jian Jin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
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6
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Ionic Liquid Mediated Triple Catalysis for Alkylation and Methylation of Acyl Chlorides with Mechanistic Insight. J Catal 2022. [DOI: 10.1016/j.jcat.2022.10.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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7
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Oderinde MS, Jin S, Das J, Jorge C, Yip S, Ramirez A, Wu DR, Li Y, Kempson J, Meanwell NA, Mathur A, Dhar TGM. Photo-Initiated Nickel Catalysis (PiNiC): Unmasking Dimethylnickel with Light. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Martins S. Oderinde
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - Soomin Jin
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - Jayanta Das
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - Christine Jorge
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - Shiuhang Yip
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - Antonio Ramirez
- Chemical & Process Development, Bristol Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08901, United States
| | - Dauh-Rurng Wu
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - Ying Li
- Separation & Analysis Technology Team, Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - James Kempson
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - Nicholas A. Meanwell
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - Arvind Mathur
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - T. G. Murali Dhar
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
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8
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Zhao H, Zeng Q, Yang J, Xu B, Lei H, Xu L, Walsh PJ. Rhodium(I)-catalyzed directed trideuteromethylation of (hetero)arene C-H bonds with CD 3CO 2D. Org Biomol Chem 2022; 20:7645-7649. [PMID: 36125438 DOI: 10.1039/d2ob01581a] [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
A Rh(I)-catalyzed trideuteromethylation of heteroarenes with inexpensive and readily available deuterated acetic acid (CD3CO2D) with the aid of a N-containing directing groups is developed. The oxidant-free reaction is applicable to a wide range of heteroarene substrates, including 2-pyridones, indoles, aryl rings, pyrroles and carbazoles. It allows installation of CD3 groups under straightforward reaction conditions. It is expected that the salient and practical features of this trideuteromethylation protocol will be of use to academic and industrial researchers.
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Affiliation(s)
- Haoqiang Zhao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China. .,Department of Chemistry, Renmin University of China, Beijing 100872, China. .,Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, USA.
| | - Qi Zeng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China.
| | - Ji Yang
- Department of Chemistry, Renmin University of China, Beijing 100872, China.
| | - Bing Xu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China.
| | - Haimin Lei
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China.
| | - Lijin Xu
- Department of Chemistry, Renmin University of China, Beijing 100872, China.
| | - Patrick J Walsh
- Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, USA.
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9
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Gao N, Li Y, Teng D. Nickel-catalysed cross-electrophile coupling of aryl bromides and primary alkyl bromides. RSC Adv 2022; 12:3569-3572. [PMID: 35425390 PMCID: PMC8979266 DOI: 10.1039/d2ra00010e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Accepted: 01/11/2022] [Indexed: 12/25/2022] Open
Abstract
The structure of primary alkylated arenes plays an important role in the molecular action of drugs and natural products. The nickel/spiro-bidentate-pyox catalysed cross-electrophile coupling of aryl bromides and primary alkyl bromides was developed for the formation of the Csp2–Csp3 bond, which provided an efficient method for the synthesis of primary alkylated arenes. The reactions could tolerate functional groups such as ester, aldehyde, ketone, ether, benzyl, and imide. The structure of primary alkylated arenes play an important role in the molecular action of drugs and natural products. The nickel/spiro-bidentate-pyox catalysed cross-electrophile coupling of aryl bromides and primary alkyl bromides was developed.![]()
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Affiliation(s)
- Nanxing Gao
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yanshun Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Dawei Teng
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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10
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Yang X, Wang G, Ye ZS. Palladium-catalyzed nucleomethylation of alkynes for synthesis of methylated heteroaromatic compounds. Chem Sci 2022; 13:10095-10102. [PMID: 36128232 PMCID: PMC9430495 DOI: 10.1039/d2sc03294e] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 08/09/2022] [Indexed: 11/29/2022] Open
Abstract
Herein, we disclosed a novel and efficient palladium-catalyzed nucleomethylation of alkynes for the simultaneous construction of the heteroaromatic ring and methyl group. The 3-methylindoles, 3-methylbenzofurans and 4-methylisoquinolines were obtained in moderate to excellent yields. Notably, this methodology was employed as a key step for synthesis of a pregnane X receptor antagonist, zindoxifene, bazedoxifene and AFN-1252. The kinetic studies revealed that reductive elimination might be the rate-determining step. A novel palladium-catalyzed nucleomethylation of alkynes is developed, affording 3-methylindoles, 3-methylbenzofurans and 4-methylisoquinolines in moderate to excellent yields.![]()
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Affiliation(s)
- Xi Yang
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
| | - Gang Wang
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
| | - Zhi-Shi Ye
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
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11
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Xiao J, Li Z, Montgomery J. Nickel-Catalyzed Decarboxylative Coupling of Redox-Active Esters with Aliphatic Aldehydes. J Am Chem Soc 2021; 143:21234-21240. [PMID: 34894690 DOI: 10.1021/jacs.1c11170] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The addition of alkyl fragments to aliphatic aldehydes is a highly desirable transformation for fragment couplings, yet existing methods come with operational challenges related to the basicity and instability of the nucleophilic reagents commonly employed. We report herein that nickel catalysis using a readily available bioxazoline (BiOx) ligand can catalyze the reductive coupling of redox-active esters with aliphatic aldehydes using zinc metal as the reducing agent to deliver silyl-protected secondary alcohols. This protocol is operationally simple, proceeds under mild conditions, and tolerates a variety of functional groups. Initial mechanistic studies suggest a radical chain pathway. Additionally, alkyl tosylates and epoxides are suitable alkyl precursors to this transformation providing a versatile suite of catalytic reactions for the functionalization of aliphatic aldehydes.
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Affiliation(s)
- Jichao Xiao
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48108-1055, United States
| | - Zhenning Li
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48108-1055, United States
| | - John Montgomery
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48108-1055, United States
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12
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Xin YH, Guo YQ, Zhang XG, Deng CL. Palladium-Catalyzed Methylsulfonylation of Alkyl Halides Using Dimethyl Sulfite as SO 2 Surrogate and Methyl Source. J Org Chem 2021; 86:17496-17503. [PMID: 34747609 DOI: 10.1021/acs.joc.1c02188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A novel and efficient method for the synthesis of methyl sulfone derivatives via palladium-catalyzed methylsulfonylation of alkyl halides with dimethyl sulfite has been described. A variety of aryl and alkyl iodides underwent the sulfonylation smoothly to furnish methyl sulfites in moderate to excellent yields.
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Affiliation(s)
- Yan-Hua Xin
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Ying-Qiong Guo
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xing-Guo Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.,Guangxi Key Laboratory of Calcium Carbonate Resources Comprehensive Utilization, Hezhou University, Hezhou 542899, China
| | - Chen-Liang Deng
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.,Institute of New Materials & Industrial Technology, Wenzhou University, Wenzhou 325035, China
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13
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Yu H, Wang ZX. Nickel-catalyzed cross-electrophile coupling of aryl chlorides with allylic alcohols. Org Biomol Chem 2021; 19:9723-9731. [PMID: 34727149 DOI: 10.1039/d1ob01874d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nickel-catalyzed cross-electrophile coupling of aryl chlorides with allylic alcohols proceeds readily under mild conditions in the presence of zinc powder and MgCl2 to produce allylarenes in 25-92% yields. The reaction shows high regioselectivity and E/Z-selectivity, giving linear allylation products with an E configurated double bond when 1- or 3-arylallyl alcohols were used as the substrates. Functional groups including F, CF3, COOEt, NMe2, OMe, SiMe3, OH and vinyl groups as well as nitrogen-containing heterocycles were tolerated.
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Affiliation(s)
- Hang Yu
- CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
| | - Zhong-Xia Wang
- CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China. .,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China
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14
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Tang S, Xu ZH, Liu T, Wang SW, Yu J, Liu J, Hong Y, Chen SL, He J, Li JH. Radical 1,4-Aryl Migration Enabled Remote Cross-Electrophile Coupling of α-Amino-β-Bromo Acid Esters with Aryl Bromides. Angew Chem Int Ed Engl 2021; 60:21360-21367. [PMID: 34291545 DOI: 10.1002/anie.202106273] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/30/2021] [Indexed: 12/14/2022]
Abstract
We report an unprecedented, efficient nickel-catalysed radical relay for the remote cross-electrophile coupling of β-bromo-α-benzylamino acid esters with aryl bromides via 1,4-aryl migration/arylation cascades. β-Bromo-α-benzylamino acid esters are considered as unique molecular scaffolds allowing for aryl migration reactions, which are conceptually novel variants for the radical Truce-Smiles rearrangement. This reaction enables the formation of two new C(sp3 )-C(sp2 ) bonds using a bench-stable Ni/bipyridine/Zn system featuring a broad substrate scope and excellent diastereoselectivity, which provides an effective platform for the remote aryl group migration and arylation of amino acid esters via redox-neutral C(sp3 )-C(sp2 ) bond cleavage. Mechanistically, this cascade reaction is accomplished by combining two powerful catalytic cycles consisting of a cross-electrophile coupling and radical 1,4-aryl migration through the generation of C(sp3 )-centred radical intermediates from the homolysis of C(sp3 )-Br bonds and the switching of the transient alkyl radical into a robust α-aminoalkyl radical.
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Affiliation(s)
- Shi Tang
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, 416000, China
| | - Zhen-Hua Xu
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, 416000, China
| | - Ting Liu
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, 416000, China
| | - Shuo-Wen Wang
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, 416000, China
| | - Jian Yu
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, 416000, China
| | - Jian Liu
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, 416000, China
| | - Yu Hong
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, 416000, China
| | - Shi-Lu Chen
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Institute of Technology, Beijing, 100081, China
| | - Jin He
- College of Chemistry and Chemical Engineering, Jishou University, Jishou, 416000, 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 Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, China
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15
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Tang S, Xu Z, Liu T, Wang S, Yu J, Liu J, Hong Y, Chen S, He J, Li J. Radical 1,4‐Aryl Migration Enabled Remote Cross‐Electrophile Coupling of α‐Amino‐β‐Bromo Acid Esters with Aryl Bromides. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Shi Tang
- College of Chemistry and Chemical Engineering Jishou University Jishou 416000 China
| | - Zhen‐Hua Xu
- College of Chemistry and Chemical Engineering Jishou University Jishou 416000 China
| | - Ting Liu
- College of Chemistry and Chemical Engineering Jishou University Jishou 416000 China
| | - Shuo‐Wen Wang
- College of Chemistry and Chemical Engineering Jishou University Jishou 416000 China
| | - Jian Yu
- College of Chemistry and Chemical Engineering Jishou University Jishou 416000 China
| | - Jian Liu
- College of Chemistry and Chemical Engineering Jishou University Jishou 416000 China
| | - Yu Hong
- College of Chemistry and Chemical Engineering Jishou University Jishou 416000 China
| | - Shi‐Lu Chen
- Key Laboratory of Cluster Science of Ministry of Education Beijing Institute of Technology Beijing 100081 China
| | - Jin He
- College of Chemistry and Chemical Engineering Jishou University Jishou 416000 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 Chemo/Biosensing and Chemometrics Hunan University Changsha 410082 China
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16
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Bercher OP, Plunkett S, Mortimer TE, Watson MP. Deaminative Reductive Methylation of Alkylpyridinium Salts. Org Lett 2021; 23:7059-7063. [PMID: 34464140 PMCID: PMC8448964 DOI: 10.1021/acs.orglett.1c02458] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Methyl groups can imbue valuable properties in organic molecules, often leading to enhanced bioactivity. To enable efficient installation of methyl groups on simple building blocks and in late-stage functionalization, a nickel-catalyzed reductive coupling of secondary Katritzky alkylpyridinium salts with methyl iodide was developed. When coupled with formation of the pyridinium salt from an alkyl amine, this method allows amino groups to be readily transformed to methyl groups with broad functional group and heterocycle tolerance.
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Affiliation(s)
- Olivia P. Bercher
- Department of Chemistry & Biochemistry, University of Delaware, Newark, Delaware, 19716, United States
| | - Shane Plunkett
- Department of Chemistry & Biochemistry, University of Delaware, Newark, Delaware, 19716, United States
| | - Thomas E. Mortimer
- Department of Chemistry & Biochemistry, University of Delaware, Newark, Delaware, 19716, United States
| | - Mary P. Watson
- Department of Chemistry & Biochemistry, University of Delaware, Newark, Delaware, 19716, United States
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17
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Liu F, Ye ZP, Hu YZ, Gao J, Zheng L, Chen K, Xiang HY, Chen XQ, Yang H. N, N, N', N'-Tetramethylethylenediamine-Enabled Photoredox-Catalyzed C-H Methylation of N-Heteroarenes. J Org Chem 2021; 86:11905-11914. [PMID: 34344150 DOI: 10.1021/acs.joc.1c01325] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Aiming at the valuable methylation process, readily available and inexpensive N,N,N',N'-tetramethylethylenediamine (TMEDA) was first identified as a new methyl source in photoredox-catalyzed transformation in this work. By virtue of this simple methylating reagent, a facile and practical protocol for the direct C-H methylation of N-heteroarenes was developed, featuring mild reaction conditions, broad substrate scope, and scalability. Mechanistic studies disclosed that a sequential photoredox, base-assisted proton shift, fragmentation, and tautomerization process was essentially involved.
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Affiliation(s)
- Fang Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Zhi-Peng Ye
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Yuan-Zhuo Hu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Jie Gao
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Lan Zheng
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Kai Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.,Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, P. R. China
| | - Hao-Yue Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Xiao-Qing Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.,Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha 410083, P. R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.,Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha 410083, P. R. China
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18
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Zhao B, Rogge T, Ackermann L, Shi Z. Metal-catalysed C-Het (F, O, S, N) and C-C bond arylation. Chem Soc Rev 2021; 50:8903-8953. [PMID: 34190223 DOI: 10.1039/c9cs00571d] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The formation of C-aryl bonds has been the focus of intensive research over the last decades for the construction of complex molecules from simple, readily available feedstocks. Traditionally, these strategies involve the coupling of organohalides (I, Br, Cl) with organometallic reagents (Mg, Zn, B, Si, Sn,…) such as Kumada-Corriu, Negishi, Suzuki-Miyaura, Hiyama and Sonogashira cross-couplings. More recently, alternative methods have provided access to these products by reactions with less reactive C-Het (F, O, S, N) and C-C bonds. Compared to traditional methods, the direct cleavage and arylation of these chemical bonds, the essential link in accessible feedstocks, has become increasingly important from the viewpoint of step-economy and functional-group compatibility. This comprehensive review aims to outline the development and advances of this topic, which was organized into (1) C-F bond arylation, (2) C-O bond arylation, (3) C-S bond arylation, (4) C-N bond arylation, and (5) C-C bond arylation. Substantial attention has been paid to the strategies and mechanistic investigations. We hope that this review can trigger chemists to discover more efficient methodologies to access arylation products by cleavage of these C-Het and C-C bonds.
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Affiliation(s)
- Binlin Zhao
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
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19
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Wu Z, Wei F, Wan B, Zhang Y. Pd-Catalyzed ipso, meta-Dimethylation of ortho-Substituted Iodoarenes via a Base-Controlled C-H Activation Cascade with Dimethyl Carbonate as the Methyl Source. J Am Chem Soc 2021; 143:4524-4530. [PMID: 33750128 DOI: 10.1021/jacs.0c13057] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A methyl group can have a profound impact on the pharmacological properties of organic molecules. Hence, developing methylation methods and methylating reagents is essential in medicinal chemistry. We report a palladium-catalyzed dimethylation reaction of ortho-substituted iodoarenes using dimethyl carbonate as a methyl source. In the presence of K2CO3 as a base, iodoarenes are dimethylated at the ipso- and meta-positions of the iodo group, which represents a novel strategy for meta-C-H methylation. With KOAc as the base, subsequent oxidative C(sp3)-H/C(sp3)-H coupling occurs; in this case, the overall transformation achieves triple C-H activation to form three new C-C bonds. These reactions allow expedient access to 2,6-dimethylated phenols, 2,3-dihydrobenzofurans, and indanes, which are ubiquitous structural motifs and essential synthetic intermediates of biologically and pharmacologically active compounds.
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Affiliation(s)
- Zhuo Wu
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Feng Wei
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Bin Wan
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Yanghui Zhang
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
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20
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Li L, Li X, Wang W, He Q, Fan R. Synthesis of 4-Alkylindoles from 2-Alkynylanilines via Dearomatization- and Aromatization-Triggered Alkyl Migration. Org Lett 2021; 23:2130-2134. [PMID: 33688741 DOI: 10.1021/acs.orglett.1c00280] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A simple method for rapid synthesis of 4-alkylindoles from 2-alkynylanilines was reported. The protocol involves an oxidative dearomatization and an aromatization triggered regioselective alkyl migration. A range of alkyl groups including linear, branched, or cycloalkyl groups can be introduced into the C4 position of indole.
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Affiliation(s)
- Lei Li
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Xiaohua Li
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Weiyi Wang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Qiuqin He
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Renhua Fan
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
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21
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Li Z, Sun W, Wang X, Li L, Zhang Y, Li C. Electrochemically Enabled, Nickel-Catalyzed Dehydroxylative Cross-Coupling of Alcohols with Aryl Halides. J Am Chem Soc 2021; 143:3536-3543. [PMID: 33621464 DOI: 10.1021/jacs.0c13093] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
As alcohols are ubiquitous throughout chemical science, this functional group represents a highly attractive starting material for forging new C-C bonds. Here, we demonstrate that the combination of anodic preparation of the alkoxy triphenylphosphonium ion and nickel-catalyzed cathodic reductive cross-coupling provides an efficient method to construct C(sp2)-C(sp3) bonds, in which free alcohols and aryl bromides-both readily available chemicals-can be directly used as coupling partners. This nickel-catalyzed paired electrolysis reaction features a broad substrate scope bearing a wide gamut of functionalities, which was illustrated by the late-stage arylation of several structurally complex natural products and pharmaceuticals.
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Affiliation(s)
- Zijian Li
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China.,National Institute of Biological Sciences (NIBS), Beijing 102206, China
| | - Wenxuan Sun
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing 100084, China.,National Institute of Biological Sciences (NIBS), Beijing 102206, China
| | - Xianxu Wang
- National Institute of Biological Sciences (NIBS), Beijing 102206, China
| | - Luyang Li
- National Institute of Biological Sciences (NIBS), Beijing 102206, China
| | - Yong Zhang
- National Institute of Biological Sciences (NIBS), Beijing 102206, China
| | - Chao Li
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing 100084, China.,National Institute of Biological Sciences (NIBS), Beijing 102206, China
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22
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Kariofillis SK, Doyle AG. Synthetic and Mechanistic Implications of Chlorine Photoelimination in Nickel/Photoredox C(sp 3)-H Cross-Coupling. Acc Chem Res 2021; 54:988-1000. [PMID: 33511841 DOI: 10.1021/acs.accounts.0c00694] [Citation(s) in RCA: 105] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In recent years, the development of light-driven reactions has contributed numerous advances in synthetic organic chemistry. A particularly active research area combines photoredox catalysis with nickel catalysis to accomplish otherwise inaccessible cross-coupling reactions. In these reactions, the photoredox catalyst absorbs light to generate an electronically excited charge-transfer state that can engage in electron or energy transfer with a substrate and the nickel catalyst. Our group questioned whether photoinduced activation of the nickel catalyst itself could also contribute new approaches to cross-coupling. Over the past 5 years, we have sought to advance this hypothesis for the development of a suite of mild and site-selective C(sp3)-H cross-coupling reactions with chloride-containing coupling partners via photoelimination of a Ni-Cl bond.On the basis of a report from the Nocera laboratory, we reasoned that photolysis of a Ni(III) aryl chloride species, generated by single-electron oxidation of a typical Ni(II) intermediate in cross-coupling, might allow for the catalytic generation of chlorine atoms. Combining this with the ability of Ni(II) to accept alkyl radicals, we hypothesized that photocatalytically generated chlorine atoms could mediate hydrogen atom transfer (HAT) with C(sp3)-H bonds to generate a substrate-derived alkyl radical that is captured by the Ni center in cross-coupling. A photoredox catalyst was envisioned to promote the necessary single-electron oxidation and reduction of the Ni catalyst to facilitate an overall redox-neutral process. Overall, this strategy would offer a visible-light-driven mechanism for chlorine radical formation enabled by the sequential capture of two photons.As an initial demonstration, we developed a Ni/photoredox-catalyzed α-oxy C(sp3)-H arylation of cyclic and acyclic ethers. This method was extended to a mild formylation of abundant and complex aryl chlorides through selective 2-functionalization of 1,3-dioxolane. Seeking to develop a suite of reactions that introduce carbon at all different oxidation states, we explored C(sp3)-H cross-coupling with trimethyl orthoformate, a common laboratory solvent. We found that trimethyl orthoformate serves as a source of methyl radical for a methylation reaction via β-scission from a tertiary radical generated upon chlorine-mediated HAT. Since chlorine radical is capable of abstracting unactivated C(sp3)-H bonds, our efforts have also been directed at cross-coupling with a range of feedstock chemicals, such as alkanes and toluenes, along with late-stage intermediates, using chloroformates as coupling partners. Overall, this platform enables access to valuable synthetic transformations with (hetero)aryl chlorides, which despite being the most ubiquitous and inexpensive aryl halide coupling partners, are rarely reactive in Ni/photoredox catalysis.Little is known about the photophysics and photochemistry of organometallic Ni complexes relevant to cross-coupling. We have conducted mechanistic investigations, including computational, spectroscopic, emission quenching, and stoichiometric oxidation studies, of Ni(II) aryl halide complexes common to Ni/photoredox reactions. These studies indicate that chlorine radical generation from excited Ni(III) is operative in the described C(sp3)-H functionalization methods. More generally, the studies illustrate that the photochemistry of cross-coupling catalysts cannot be ignored in metallaphotoredox reactions. We anticipate that further mechanistic understanding should facilitate new catalyst design and lead to the development of new synthetic methods.
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Affiliation(s)
- Stavros K. Kariofillis
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Abigail G. Doyle
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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23
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Komeyama K. Reductive Transformations of Organo (pseudo) halides Catalyzed by Cobalt and/or Nickel Catalyst. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kimihiro Komeyama
- Department of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University
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24
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Wang Y, He Q, Fan R. Facile synthesis of 4-acetoxyindoles via PhI(OAc) 2-mediated dearomatization of 2-alkynylanilines. Org Chem Front 2021. [DOI: 10.1039/d1qo00358e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A simple process for rapid synthesis of 4-aetoxyindoles from readily available 2-alkynylanilines via dearomatization was reported.
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Affiliation(s)
- Yue Wang
- Department of Chemistry
- Fudan University
- Shanghai
- China
| | - Qiuqin He
- Department of Chemistry
- Fudan University
- Shanghai
- China
| | - Renhua Fan
- Department of Chemistry
- Fudan University
- Shanghai
- China
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25
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Tong X, Luo SS, Shen H, Zhang S, Cao T, Luo YP, Huang LL, Ma XT, Liu XW. Nickel-catalyzed defluorinative alkylation of C(sp 2)–F bonds. Org Chem Front 2021. [DOI: 10.1039/d1qo00549a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A nickel-catalyzed defluorinative alkylation of unactivated C(sp2)–F electrophiles using commercially available trialkylaluminum reagents, thus forming the C(sp2)–C(sp3) bonds is reported.
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Affiliation(s)
- Xue Tong
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs
- School of Life Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
| | - Si-Si Luo
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs
- School of Life Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
| | - Hua Shen
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs
- School of Life Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
| | - Shu Zhang
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs
- School of Life Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
| | - Tian Cao
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs
- School of Life Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
| | - Yi-Peng Luo
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs
- School of Life Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
| | - Long-Ling Huang
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs
- School of Life Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
| | - Xi-Tao Ma
- Hospital of Chengdu University of Traditional Chinese Medicine
- Chengdu 610072
- China
| | - Xiang-Wei Liu
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs
- School of Life Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
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26
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Wu L, Wei H, Chen J, Zhang W. Development of Nickel-Catalyzed Cross-Coupling of Alcohol Derivatives to Construct Carbon-Carbon Bonds. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202106021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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27
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Guo P, Wang K, Jin WJ, Xie H, Qi L, Liu XY, Shu XZ. Dynamic Kinetic Cross-Electrophile Arylation of Benzyl Alcohols by Nickel Catalysis. J Am Chem Soc 2020; 143:513-523. [DOI: 10.1021/jacs.0c12462] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Peng Guo
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, China
| | - Ke Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, China
| | - Wen-Jie Jin
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, China
| | - Hao Xie
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, China
| | - Liangliang Qi
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, China
| | - Xue-Yuan Liu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, China
| | - Xing-Zhong Shu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou, 730000, China
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28
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Xu X, Tao N, Fan WT, Tu G, Geng J, Zhang J, Zhao Y. Ruthenium-Catalyzed Meta-Selective C-H Difluoromethylation of Phenol Derivatives. J Org Chem 2020; 85:13868-13876. [PMID: 33113330 DOI: 10.1021/acs.joc.0c01909] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
With pyrimidine as the directing group, we achieved the meta-selective difluoromethylation of phenol derivatives using ruthenium as a catalyst. This synthetic scheme provided an efficient method for the syntheses of fluorine-containing phenol derivatives. A wide variety of phenol derivatives were well-suited, affording the corresponding products in moderate-to-good yields.
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Affiliation(s)
- Xu Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Na Tao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Wei-Tai Fan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Guangliang Tu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Jingyao Geng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Jingyu Zhang
- College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou 215006, P. R. China
| | - Yingsheng Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
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29
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Dumas A, Garsi JB, Poissonnet G, Hanessian S. Ni-Catalyzed Reductive and Merged Photocatalytic Cross-Coupling Reactions toward sp 3/sp 2-Functionalized Isoquinolones: Creating Diversity at C-6 and C-7 to Address Bioactive Analogues. ACS OMEGA 2020; 5:27591-27606. [PMID: 33134723 PMCID: PMC7594327 DOI: 10.1021/acsomega.0c04181] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 09/22/2020] [Indexed: 06/11/2023]
Abstract
Naturally occurring isoquinolones have gained considerable attention over the years for their bioactive properties. While the late-stage introduction of various functionalities at certain positions, namely, C-3, C-4, and C-8, has been widely documented, the straightforward introduction of challenging sp3 carbon-linked acyclic aminoalkyl or aza- and oxacyclic appendages at C-6 and C-7 remains largely underexplored. Interest in 6-substituted azacyclic analogues has recently garnered attention in connection with derivatives exhibiting anticancer activity. Reported here is the first application of the versatile and recently emerging field of Ni-catalyzed reductive cross-coupling reactions to the synthesis of 6- and 7- hetero(cyclo)alkyl-substituted isoquinolones. In a second and complementary approach, a new set of C-6- and C-7-substituted positional isomers of hetero(cyclo)alkyl appendages were obtained from the merging of photocatalytic and Ni-catalyzed coupling reactions. In both cases, 6- and 7-bromo isoquinolones served as dual-purpose reacting partners with readily available tosylates and carboxylic acids, respectively.
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Affiliation(s)
- Adrien Dumas
- Department
of Chemistry, Université de Montréal, PO Box 6128, Station Centre-Ville, Montréal, QC, Canada H3C 3J7
| | - Jean-Baptiste Garsi
- Department
of Chemistry, Université de Montréal, PO Box 6128, Station Centre-Ville, Montréal, QC, Canada H3C 3J7
| | - Guillaume Poissonnet
- CentEX
Chemistry, Institut de Recherches Servier, 11 rue des Moulineaux, 92150 Suresnes, France
| | - Stephen Hanessian
- Department
of Chemistry, Université de Montréal, PO Box 6128, Station Centre-Ville, Montréal, QC, Canada H3C 3J7
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30
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Li H, Sheng J, Liao G, Wu B, Ni H, Li Y, Wang X. Nickel‐Catalyzed Direct Trifluoroethylation of Aryl Iodides with 1,1,1‐Trifluoro‐2‐Iodoethane via Reductive Coupling. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000985] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Han Li
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry Center for Excellence in Molecular Synthesis of CAS University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 People's Republic of China
| | - Jie Sheng
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry Center for Excellence in Molecular Synthesis of CAS University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 People's Republic of China
| | - Guang‐Xu Liao
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry Center for Excellence in Molecular Synthesis of CAS University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 People's Republic of China
| | - Bing‐Bing Wu
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry Center for Excellence in Molecular Synthesis of CAS University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 People's Republic of China
| | - Hui‐Qi Ni
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry Center for Excellence in Molecular Synthesis of CAS University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 People's Republic of China
| | - Yan Li
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry Center for Excellence in Molecular Synthesis of CAS University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 People's Republic of China
| | - Xi‐Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry Center for Excellence in Molecular Synthesis of CAS University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 People's Republic of China
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31
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Liu J, Ye Y, Sessler JL, Gong H. Cross-Electrophile Couplings of Activated and Sterically Hindered Halides and Alcohol Derivatives. Acc Chem Res 2020; 53:1833-1845. [PMID: 32840998 DOI: 10.1021/acs.accounts.0c00291] [Citation(s) in RCA: 164] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Transition metal catalyzed cross-electrophile coupling of alkyl electrophiles has evolved into a privileged strategy that permits the facile construction of valuable C(sp3)-C bonds. Numerous elegant Ni-catalyzed coupling methods, for example, arylation, allylation, acylation, and vinylation of primary and secondary alkyl halides have been developed. This prior work has provided important mechanistic insights into the selectivity and reactivity of the coupling partners, which are largely dictated by both the catalysts and the reactants. In spite of the advances made to date, a number of challenging issues remain, including (1) achieving stereoselective syntheses of C-C bonds that rely primarily on functionalized or activated alkyl precursors, (2) diversifying the electrophiles, and (3) gaining insights into the underlying reaction mechanisms.In this Account, we summarize a number of Ni- and Fe-catalyzed reductive C-C bond forming methods developed in our laboratory, which have allowed us to couple activated, sterically hindered tertiary alkyl and C(sp3)-O bond electrophiles and to access methylated and trifluoromethylated products, esters, C-glycosides, and quaternary carbon centers. We will begin with a brief discussion of Ni-catalyzed chemoselective construction of unactivated alkyl-alkyl bonds, with focus on the effects of ligands and reductants, along with leaving group-directed reactivities of alkyl halides, and the role they play in promoting the reductive coupling of activated electrophiles, including methyl, trifluoromethyl, and glycosyl electrophiles, and chloroformates. Matching the reactivities of these electrophiles with suitable coupling partners is considered essential for success; this is something that can be tuned by means of appropriate Ni catalysts. Second, we will detail how tuning the steric and electronic effects of nickel catalysts with labile pyridine-type ligands and additives (primarily MgCl2) permits effective creation of arylated all-carbon quaternary centers through the coupling of aryl halides with sterically encumbered tertiary alkyl halides. In contrast, the use of bulkier bipyridine and terpyridine ligands permits the incorporation of relative small-sized acyl and allyl groups into acylated and allylated all-carbon quaternary centers. Finally, we will show how the knowledge gained with halide electrophiles enabled us to develop methods that permit the coupling of tertiary alkyl oxalates with allyl, aryl, and vinyl electrophiles, wherein Barton C-O bond radical fragmentation is mediated by Zn and MgCl2 and promoted by Ni catalysts. The same protocol is applicable to the arylation of secondary alkyl oxalates derived from α-hydroxyl carbonyl substrates, which involves the formation of relatively stable α-carbonyl carbon centered radicals. Thus, this Account not only summarizes synthetic methods that allow formation of valuable C-C bonds using challenging electrophiles but also provides insight into the relationship between the structure and reactivity of the substrates and catalysts, as well as the effects of additives.
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Affiliation(s)
- Jiandong Liu
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry and Institute for the Conservation of Cultural Heritage, Shanghai University, Shanghai 200444, China
| | - Yang Ye
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry and Institute for the Conservation of Cultural Heritage, Shanghai University, Shanghai 200444, China
| | - Jonathan L. Sessler
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry and Institute for the Conservation of Cultural Heritage, Shanghai University, Shanghai 200444, China
| | - Hegui Gong
- Center for Supramolecular Chemistry and Catalysis, Department of Chemistry and Institute for the Conservation of Cultural Heritage, Shanghai University, Shanghai 200444, China
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Li Y, Li Y, Peng L, Wu D, Zhu L, Yin G. Nickel-catalyzed migratory alkyl-alkyl cross-coupling reaction. Chem Sci 2020; 11:10461-10464. [PMID: 34094304 PMCID: PMC8162388 DOI: 10.1039/d0sc03217d] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The selective cross-coupling of activated electrophiles with unactivated ones has been regarded as a challenging task in cross-electrophile couplings. Herein we describe a migratory cross-coupling strategy, which can overcome this obstacle to access the desired cross-coupling products. Accordingly, a selective migratory cross-coupling of two alkyl electrophiles has been accomplished by nickel catalysis. Remarkably, this alkyl–alkyl cross-coupling reaction provides a platform to prepare 2°–2° carbon–carbon bonds from 1° and 2° carbon coupling partners. Preliminary mechanistic studies suggest that chain-walking occurs at both alkyl halides in this reaction, thus a catalytic cycle with the key step involving two alkylnickel(ii) species is proposed for this transformation. The selective cross-coupling of activated electrophiles with unactivated ones has been regarded as a challenging task in cross-electrophile couplings.![]()
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Affiliation(s)
- Yangyang Li
- The Institute for Advanced Studies, Wuhan University Wuhan 430072 China
| | - Yuqiang Li
- The Institute for Advanced Studies, Wuhan University Wuhan 430072 China
| | - Long Peng
- The Institute for Advanced Studies, Wuhan University Wuhan 430072 China
| | - Dong Wu
- The Institute for Advanced Studies, Wuhan University Wuhan 430072 China
| | - Lei Zhu
- Institute of Biomedical Materials Industry Technology, Hubei Engineering University Hubei 432000 China
| | - Guoyin Yin
- The Institute for Advanced Studies, Wuhan University Wuhan 430072 China
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33
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Nwachukwu CI, McFadden TP, Roberts AG. Ni-Catalyzed Iterative Alkyl Transfer from Nitrogen Enabled by the In Situ Methylation of Tertiary Amines. J Org Chem 2020; 85:9979-9992. [PMID: 32668901 DOI: 10.1021/acs.joc.0c01274] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Current methods to achieve transition-metal-catalyzed alkyl carbon-nitrogen (C-N) bond cleavage require the preformation of ammonium, pyridinium, or sulfonamide derivatives from the corresponding alkyl amines. These activated substrates permit C-N bond cleavage, and their resultant intermediates can be intercepted to affect carbon-carbon bond-forming transforms. Here, we report the combination of in situ amine methylation and Ni-catalyzed benzalkyl C-N bond cleavage under reductive conditions. This method permits iterative alkyl group transfer from tertiary amines and demonstrates a deaminative strategy for the construction of Csp3-Csp3 bonds. We demonstrate PO(OMe)3 (trimethylphosphate) to be a Ni-compatible methylation reagent for the in situ conversion of trialkyl amines into tetraalkylammonium salts. Single, double, and triple benzalkyl group transfers can all be achieved from the appropriately substituted tertiary amines. Transformations developed herein proceed via recurring events: the in situ methylation of tertiary amines by PO(OMe)3, Ni-catalyzed C-N bond cleavage, and concurrent Csp3-Csp3 bond formation.
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Affiliation(s)
- Chideraa Iheanyi Nwachukwu
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Timothy Patrick McFadden
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Andrew George Roberts
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
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Blum SP, Schollmeyer D, Turks M, Waldvogel SR. Metal- and Reagent-Free Electrochemical Synthesis of Alkyl Arylsulfonates in a Multi-Component Reaction. Chemistry 2020; 26:8358-8362. [PMID: 32338808 PMCID: PMC7383810 DOI: 10.1002/chem.202001180] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Indexed: 12/12/2022]
Abstract
This work presents the first electrochemical preparation of alkyl arylsulfonates by direct anodic oxidation of electron-rich arenes. The reaction mechanism features a multi-component reaction consisting of electron-rich arenes, an alcohol of choice and excess SO2 in an acetonitrile-HFIP reaction mixture. In-situ formed monoalkyl sulfites are considered as key intermediates with bifunctional purpose. Firstly, this species functions as nucleophile and secondly, excellent conductivity is provided. Several primary and secondary alcohols and electron-rich arenes are implemented in this reaction to form the alkyl arylsulfonates in yields up to 73 % with exquisite selectivity. Boron-doped diamond electrodes (BDD) are employed in divided cells, separated by a simple commercially available glass frit.
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Affiliation(s)
- Stephan P. Blum
- Department of ChemistryJohannes Gutenberg-University MainzDuesbergweg 10-1455128MainzGermany
| | - Dieter Schollmeyer
- Department of ChemistryJohannes Gutenberg-University MainzDuesbergweg 10-1455128MainzGermany
| | - Maris Turks
- Institute of Technology of Organic ChemistryFaculty of Materials Science and Applied ChemistryRiga Technical UniversityP. Valdena 3Riga1048Latvia
| | - Siegfried R. Waldvogel
- Department of ChemistryJohannes Gutenberg-University MainzDuesbergweg 10-1455128MainzGermany
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35
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Kariofillis SK, Shields BJ, Tekle-Smith MA, Zacuto MJ, Doyle AG. Nickel/Photoredox-Catalyzed Methylation of (Hetero)aryl Chlorides Using Trimethyl Orthoformate as a Methyl Radical Source. J Am Chem Soc 2020; 142:7683-7689. [PMID: 32275411 DOI: 10.1021/jacs.0c02805] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Methylation of organohalides represents a valuable transformation, but typically requires harsh reaction conditions or reagents. We report a radical approach for the methylation of (hetero)aryl chlorides using nickel/photoredox catalysis wherein trimethyl orthoformate, a common laboratory solvent, serves as a methyl source. This method permits methylation of (hetero)aryl chlorides and acyl chlorides at an early and late stage with broad functional group compatibility. Mechanistic investigations indicate that trimethyl orthoformate serves as a source of methyl radical via β-scission from a tertiary radical generated upon chlorine-mediated hydrogen atom transfer.
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Affiliation(s)
- Stavros K Kariofillis
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Benjamin J Shields
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Makeda A Tekle-Smith
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Michael J Zacuto
- Drug Substance Development, Celgene Corporation, Summit, New Jersey 07901, United States
| | - Abigail G Doyle
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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36
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Sanford AB, Thane TA, McGinnis TM, Chen PP, Hong X, Jarvo ER. Nickel-Catalyzed Alkyl-Alkyl Cross-Electrophile Coupling Reaction of 1,3-Dimesylates for the Synthesis of Alkylcyclopropanes. J Am Chem Soc 2020; 142:5017-5023. [PMID: 32129601 DOI: 10.1021/jacs.0c01330] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cross-electrophile coupling reactions of two Csp3-X bonds remain challenging. Herein we report an intramolecular nickel-catalyzed cross-electrophile coupling reaction of 1,3-diol derivatives. Notably, this transformation is utilized to synthesize a range of mono- and 1,2-disubstituted alkylcyclopropanes, including those derived from terpenes, steroids, and aldol products. Additionally, enantioenriched cyclopropanes are synthesized from the products of proline-catalyzed and Evans aldol reactions. A procedure for direct transformation of 1,3-diols to cyclopropanes is also described. Calculations and experimental data are consistent with a nickel-catalyzed mechanism that begins with stereoablative oxidative addition at the secondary center.
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Affiliation(s)
- Amberly B Sanford
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Taylor A Thane
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Tristan M McGinnis
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Pan-Pan Chen
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Xin Hong
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Elizabeth R Jarvo
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
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37
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Michiyuki T, Osaka I, Komeyama K. Reductive amidation of alkyl tosylates with isocyanates by a Ni/Co-dual catalytic system. Chem Commun (Camb) 2020; 56:1247-1250. [PMID: 31898711 DOI: 10.1039/c9cc09377j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Reductive amidation of alkyl tosylates with isocyanates using the Ni/Co-dual catalytic system is disclosed. The method proceeds efficiently under mild conditions, giving rise to the corresponding alkyl amides. Notably, the protocol can discriminate the steric environment of two alkyl tosylate moieties, enabling regioselective mono-amidation at the less-bulky site.
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Affiliation(s)
- Takuya Michiyuki
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima City, Hiroshima 739-8527, Japan.
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38
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Yang Y, Luo G, Li Y, Tong X, He M, Zeng H, Jiang Y, Liu Y, Zheng Y. Nickel-Catalyzed Reductive Coupling for Transforming Unactivated Aryl Electrophiles into β-Fluoroethylarenes. Chem Asian J 2020; 15:156-162. [PMID: 31755237 DOI: 10.1002/asia.201901490] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/21/2019] [Indexed: 01/24/2023]
Abstract
We report herein a facile synthetic method for converting unactivated (hetero)aryl electrophiles into β-fluoroethylated (hetero)arenes via nickel-catalyzed reductive cross-couplings. This coupling reaction features the involvement of FCH2 CH2 radical intermediate rather than β-fluoroethyl manganese species which provides effective solutions to the problematic β-fluoride side eliminations. The practical value of this protocol is further demonstrated by the late-stage modification of several complex ArCl or ArOH-derived bioactive molecules.
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Affiliation(s)
- Yi Yang
- College of Chemistry and Environmental Engineering, Sichuan University of Science&Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan, 643000, China
| | - Gen Luo
- College of Chemistry and Environmental Engineering, Sichuan University of Science&Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan, 643000, China
| | - Youlin Li
- College of Chemistry and Environmental Engineering, Sichuan University of Science&Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan, 643000, China
| | - Xia Tong
- College of Chemistry and Environmental Engineering, Sichuan University of Science&Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan, 643000, China
| | - Mengmeng He
- College of Chemistry and Environmental Engineering, Sichuan University of Science&Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan, 643000, China
| | - Hongyao Zeng
- College of Chemistry, Leshan Normal University, 778 Binghe Road, Leshan, Sichuan, 614000, China
| | - Yan Jiang
- College of Chemistry and Environmental Engineering, Sichuan University of Science&Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan, 643000, China
| | - Yingle Liu
- College of Chemistry and Environmental Engineering, Sichuan University of Science&Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan, 643000, China
| | - Yubin Zheng
- College of Chemistry and Environmental Engineering, Sichuan University of Science&Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan, 643000, China
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39
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Lima DB, Santos PHV, Fiori P, Badshah G, Luz EQ, Seckler D, Rampon DS. Base‐Promoted Direct Chalcogenylation of 2‐Naphthols. ChemistrySelect 2019. [DOI: 10.1002/slct.201903251] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- David B. Lima
- Laboratory of Polymers and Molecular Catalysis (LAPOCA)Department of ChemistryFederal University of Paraná-UFPR P. O. Box 19032 Curitiba, PR,81531-990 Brazil
| | - Pedro H. V. Santos
- Laboratory of Polymers and Molecular Catalysis (LAPOCA)Department of ChemistryFederal University of Paraná-UFPR P. O. Box 19032 Curitiba, PR,81531-990 Brazil
| | - Priscila Fiori
- Laboratory of Polymers and Molecular Catalysis (LAPOCA)Department of ChemistryFederal University of Paraná-UFPR P. O. Box 19032 Curitiba, PR,81531-990 Brazil
| | - Gul Badshah
- Laboratory of Polymers and Molecular Catalysis (LAPOCA)Department of ChemistryFederal University of Paraná-UFPR P. O. Box 19032 Curitiba, PR,81531-990 Brazil
| | - Eduardo Q. Luz
- Laboratory of Polymers and Molecular Catalysis (LAPOCA)Department of ChemistryFederal University of Paraná-UFPR P. O. Box 19032 Curitiba, PR,81531-990 Brazil
| | - Diego Seckler
- Laboratory of Polymers and Molecular Catalysis (LAPOCA)Department of ChemistryFederal University of Paraná-UFPR P. O. Box 19032 Curitiba, PR,81531-990 Brazil
| | - Daniel S. Rampon
- Laboratory of Polymers and Molecular Catalysis (LAPOCA)Department of ChemistryFederal University of Paraná-UFPR P. O. Box 19032 Curitiba, PR,81531-990 Brazil
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40
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Li J, Wang SY, Ji SJ. Nickel-Catalyzed Thiolation and Selenylation of Cycloketone Oxime Esters with Thiosulfonate or Seleniumsulfonate. J Org Chem 2019; 84:16147-16156. [DOI: 10.1021/acs.joc.9b02431] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jian Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
| | - Shun-Yi Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
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41
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Duan J, Du YF, Pang X, Shu XZ. Ni-catalyzed cross-electrophile coupling between vinyl/aryl and alkyl sulfonates: synthesis of cycloalkenes and modification of peptides. Chem Sci 2019; 10:8706-8712. [PMID: 31803446 PMCID: PMC6849637 DOI: 10.1039/c9sc03347e] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 08/04/2019] [Indexed: 01/23/2023] Open
Abstract
We report here the coupling reactions between vinyl/aryl and alkyl C-O electrophiles that can be derived from chemical feedstocks and naturally occurring functional groups. This method provides an efficient approach to the synthesis of a wide range of functionalized, and/or secondary alkyl substituted cycloalkenes. These compounds are difficult to produce by conventional methods. The reaction proceeds with broad substrate scope, and tolerates various functional groups such as alcohol, aldehyde, ketone, ester, amide, alkene, alkyne, heterocycles, organotin and organosilicon compounds. The synthetic utility of this method has been demonstrated by providing facile access to important building blocks. We also demonstrated the possibility to apply this method for late-stage modification of peptides. A broad range of functionalized alkyl groups could be selectively introduced into tyrosine in peptides via C-C bond formation, which has been a challenge to the existing procedures.
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Affiliation(s)
- Jicheng Duan
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) , College of Chemistry and Chemical Engineering , Lanzhou University , 222 South Tianshui Road , Lanzhou , 730000 , China .
| | - Yun-Fei Du
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) , College of Chemistry and Chemical Engineering , Lanzhou University , 222 South Tianshui Road , Lanzhou , 730000 , China .
| | - Xiaobo Pang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) , College of Chemistry and Chemical Engineering , Lanzhou University , 222 South Tianshui Road , Lanzhou , 730000 , China .
| | - Xing-Zhong Shu
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) , College of Chemistry and Chemical Engineering , Lanzhou University , 222 South Tianshui Road , Lanzhou , 730000 , China .
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42
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Gao Q, Shang Y, Song F, Ye J, Liu ZS, Li L, Cheng HG, Zhou Q. Modular Dual-Tasked C-H Methylation via the Catellani Strategy. J Am Chem Soc 2019; 141:15986-15993. [PMID: 31512477 DOI: 10.1021/jacs.9b07857] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We report a dual-tasked methylation that is based on cooperative palladium/norbornene catalysis. Readily available (hetero)aryl halides (39 iodides and 4 bromides) and inexpensive MeOTs or trimethylphosphate are utilized as the substrates and methylating reagent, respectively. Six types of "ipso" terminations can modularly couple with this "ortho" C-H methylation to constitute a versatile methylation toolbox for preparing diversified methylated arenes. This toolbox features inexpensive methyl sources, excellent functional-group tolerance, simple reaction procedures, and scalability. Importantly, it can be uneventfully extended to isotope-labeled methylation by switching to the corresponding reagents CD3OTs or 13CH3OTs. Moreover, this toolbox can be applied to late-stage modification of biorelevant substrates with complete stereoretention. We believe these salient and practical features of our dual-tasked methylation toolbox will be welcomed by academic and industrial researchers.
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43
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Peng JB, Wang LC, Wu XF. Palladium-catalyzed carbonylative/decarboxylative cross-coupling of α-bromo-ketones with allylic alcohols to γ,δ-unsaturated ketones. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.150991] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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44
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Jiang X, Yang L, Yang W, Zhu Y, Fang L, Yu C. Controllable synthesis of 3-chloro- and 3,3-dichloro-2-oxindoles via hypervalent iodine-mediated chlorooxidation. Org Biomol Chem 2019; 17:6920-6924. [PMID: 31282524 DOI: 10.1039/c9ob01173k] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An efficient and controllable protocol for the synthesis of 3-chloro- and 3,3-dichloro-2-oxindoles has been developed via hypervalent iodine-promoted chlorooxidation. By using two equivalents of 1-chloro-1,2-benziodoxol-3-(1H)-one, a wide range of indoles were transformed into 3-chloro-2-oxindoles in DMF/CF3CO2H/H2O at room temperature with good yields. As far as we know, this is the first report on the selective C-2 oxidation and C-3 monochlorination of simple indoles. In addition, three equivalents of the same hypervalent iodine afforded 3,3-dichloro-2-oxindoles in up to 99% yields under optimized conditions (dioxane/H2O, 80 °C). The method features mild reaction conditions, the widespread availability of the substrates, and good functional group tolerance.
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Affiliation(s)
- Xinpeng Jiang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, P.R. China.
| | - Liechao Yang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, P.R. China.
| | - Wenlong Yang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, P.R. China.
| | - Yu Zhu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, P.R. China.
| | - Liyun Fang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, P.R. China.
| | - Chuanming Yu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, P.R. China.
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45
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Gao M, Sun D, Gong H. Ni-Catalyzed Reductive C–O Bond Arylation of Oxalates Derived from α-Hydroxy Esters with Aryl Halides. Org Lett 2019; 21:1645-1648. [DOI: 10.1021/acs.orglett.9b00174] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mengyu Gao
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China
| | - Deli Sun
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China
| | - Hegui Gong
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China
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46
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Gong X, Wang M, Ye S, Wu J. Synthesis of 3-(Methylsulfonyl)benzo[ b]thiophenes from Methyl(2-alkynylphenyl)sulfanes and Sodium Metabisulfite via a Radical Relay Strategy. Org Lett 2019; 21:1156-1160. [PMID: 30698982 DOI: 10.1021/acs.orglett.9b00100] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A radical relay strategy for the generation of 3-(methylsulfonyl)benzo[ b]thiophenes through a reaction of methyl(2-alkynylphenyl)sulfanes with sodium metabisulfite in the presence of a photocatalyst under visible light irradiation is developed. This photoinduced sulfonylation proceeds efficiently under mild conditions by using a catalytic amount of sodium methylsulfinate as an initiator. During the reaction process, the methyl radical generated in situ is the key intermediate, which undergoes a radical relay with the combination of sulfur dioxide to afford methylsulfonyl-containing compounds.
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Affiliation(s)
- Xinxing Gong
- Institute for Advanced Studies , Taizhou University , 1139 Shifu Avenue , Taizhou 318000 , China.,Department of Chemistry , Fudan University , 2005 Songhu Road , Shanghai 200438 , China
| | - Mengjiao Wang
- Department of Chemistry , Fudan University , 2005 Songhu Road , Shanghai 200438 , China
| | - Shengqing Ye
- Institute for Advanced Studies , Taizhou University , 1139 Shifu Avenue , Taizhou 318000 , China
| | - Jie Wu
- Institute for Advanced Studies , Taizhou University , 1139 Shifu Avenue , Taizhou 318000 , China.,Department of Chemistry , Fudan University , 2005 Songhu Road , Shanghai 200438 , China
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47
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Chen Y. Recent Advances in Methylation: A Guide for Selecting Methylation Reagents. Chemistry 2018; 25:3405-3439. [DOI: 10.1002/chem.201803642] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Yantao Chen
- Medicinal Chemistry, Cardiovascular, Renal and Metabolism, IMED Biotech UnitAstraZeneca Gothenburg Sweden
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48
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Lu SC, Li HS, Gong YL, Zhang SP, Zhang JG, Xu S. Combination of PhI(OAc)2 and 2-Nitropropane as the Source of Methyl Radical in Room-Temperature Metal-Free Oxidative Decarboxylation/Cyclization: Construction of 6-Methyl Phenanthridines and 1-Methyl Isoquinolines. J Org Chem 2018; 83:15415-15425. [DOI: 10.1021/acs.joc.8b02701] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Shi-Chao Lu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Beijing Key Laboratory of Active Substance Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 2A NanWei Road, Xicheng Distrct, Beijing 100050, PR China
| | - Hong-Shuang Li
- Institute of Pharmacology, School of Pharmaceutical Sciences, Taishan Medical University, 619 Changcheng Road, Taian 271016, PR China
| | - Ya-Ling Gong
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Beijing Key Laboratory of Active Substance Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 2A NanWei Road, Xicheng Distrct, Beijing 100050, PR China
| | - Shi-Peng Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Beijing Key Laboratory of Active Substance Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 2A NanWei Road, Xicheng Distrct, Beijing 100050, PR China
| | - Ji-Guo Zhang
- Institute of Pharmacology, School of Pharmaceutical Sciences, Taishan Medical University, 619 Changcheng Road, Taian 271016, PR China
| | - Shu Xu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Beijing Key Laboratory of Active Substance Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 2A NanWei Road, Xicheng Distrct, Beijing 100050, PR China
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49
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Wu Q, Han S, Ren X, Lu H, Li J, Zou D, Wu Y, Wu Y. Pd-Catalyzed Alkylation of (Iso)quinolines and Arenes: 2-Acylpyridine Compounds as Alkylation Reagents. Org Lett 2018; 20:6345-6348. [PMID: 30284838 DOI: 10.1021/acs.orglett.8b02498] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The first Pd-catalyzed alkylation of (iso)quinolines and arenes is reported. The readily available and bench-stable 2-acylpyridine compounds were used as an alkylation reagent to form the structurally versatile alkylated (iso)quinolines and arenes. The method affords a convenient pathway for the introduction of alkyl groups into organic molecules.
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Affiliation(s)
- Qingsong Wu
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
| | - Shuaijun Han
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
| | - Xiaoxiao Ren
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
| | - Hongtao Lu
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
| | - Jingya Li
- Tetranov Biopharm, LLC, and Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou , 450052 , People's Republic of China
| | - Dapeng Zou
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
| | - Yangjie Wu
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China
| | - Yusheng Wu
- The College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry , Zhengzhou University , Zhengzhou 450052 , People's Republic of China.,Tetranov Biopharm, LLC, and Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou , 450052 , People's Republic of China.,Tetranov International, Inc.. 100 Jersey Avenue, Suite A340 , New Brunswick , New Jersey 08901 , United States
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50
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Komeyama K, Yamahata Y, Osaka I. Nickel and Nucleophilic Cobalt-Catalyzed Trideuteriomethylation of Aryl Halides Using Trideuteriomethyl p-Toluenesulfonate. Org Lett 2018; 20:4375-4378. [DOI: 10.1021/acs.orglett.8b01863] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kimihiro Komeyama
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima City 739-8527, Japan
| | - Yuta Yamahata
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima City 739-8527, Japan
| | - Itaru Osaka
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima City 739-8527, Japan
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