101
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Wang M, Khan S, Miliordos E, Chen M. Enantioselective Syntheses of Homopropargylic Alcohols via Asymmetric Allenylboration. Org Lett 2018; 20:3810-3814. [DOI: 10.1021/acs.orglett.8b01399] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mengzhou Wang
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Shahriar Khan
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Evangelos Miliordos
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Ming Chen
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
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102
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Holmes M, Schwartz LA, Krische MJ. Intermolecular Metal-Catalyzed Reductive Coupling of Dienes, Allenes, and Enynes with Carbonyl Compounds and Imines. Chem Rev 2018; 118:6026-6052. [PMID: 29897740 DOI: 10.1021/acs.chemrev.8b00213] [Citation(s) in RCA: 405] [Impact Index Per Article: 67.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Metal-catalyzed reductive coupling has emerged as an alternative to the use of stoichiometric organometallic reagents in an increasingly diverse range of carbonyl and imine additions. In this review, the use of diene, allene, and enyne pronucleophiles in intermolecular carbonyl and imine reductive couplings are surveyed, along with related hydrogen autotransfer processes.
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Affiliation(s)
- Michael Holmes
- Department of Chemistry , University of Texas at Austin , Welch Hall A5300, 105 East 24th Street , Austin , Texas 78712 , United States
| | - Leyah A Schwartz
- Department of Chemistry , University of Texas at Austin , Welch Hall A5300, 105 East 24th Street , Austin , Texas 78712 , United States
| | - Michael J Krische
- Department of Chemistry , University of Texas at Austin , Welch Hall A5300, 105 East 24th Street , Austin , Texas 78712 , United States
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103
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Zhou Q, Tang W, Chung LW. Mechanistic insights into asymmetric reductive coupling of isoquinolines by a chiral diboron with DFT calculations. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.02.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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104
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Wang F, Wang D, Zhou Y, Liang L, Lu R, Chen P, Lin Z, Liu G. Divergent Synthesis of CF3
-Substituted Allenyl Nitriles by Ligand-Controlled Radical 1,2- and 1,4-Addition to 1,3-Enynes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803668] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Fei Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Dinghai Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Yu Zhou
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon, Hong Kong China
| | - Ling Liang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Ronghua Lu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Pinhong Chen
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Zhenyang Lin
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon, Hong Kong China
| | - Guosheng Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
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105
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Wang F, Wang D, Zhou Y, Liang L, Lu R, Chen P, Lin Z, Liu G. Divergent Synthesis of CF3
-Substituted Allenyl Nitriles by Ligand-Controlled Radical 1,2- and 1,4-Addition to 1,3-Enynes. Angew Chem Int Ed Engl 2018; 57:7140-7145. [DOI: 10.1002/anie.201803668] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Fei Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Dinghai Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Yu Zhou
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon, Hong Kong China
| | - Ling Liang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Ronghua Lu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Pinhong Chen
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Zhenyang Lin
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon, Hong Kong China
| | - Guosheng Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
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106
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Zhao J, Jonker SJT, Meyer DN, Schulz G, Tran CD, Eriksson L, Szabó KJ. Copper-catalyzed synthesis of allenylboronic acids. Access to sterically encumbered homopropargylic alcohols and amines by propargylboration. Chem Sci 2018; 9:3305-3312. [PMID: 29732108 PMCID: PMC5915797 DOI: 10.1039/c7sc05123a] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 02/17/2018] [Indexed: 12/21/2022] Open
Abstract
Tri- and tetrasubstituted allenylboronic acids were prepared via a new versatile copper-catalyzed methodology. The densely functionalized allenylboronic acids readily undergo propargylboration reactions with ketones and imines without any additives. Catalytic asymmetric propargylborylation of ketones is demonstrated with high stereoselectivity allowing for the synthesis of highly enantioenriched tertiary homopropargyl alcohols. The reaction is suitable for kinetic resolution of racemic allenylboronic acids affording alkynes with adjacent quaternary stereocenters.
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Affiliation(s)
- Jian Zhao
- Department of Organic Chemistry , Stockholm University , SE-106 91 Stockholm , Sweden .
| | - Sybrand J T Jonker
- Department of Organic Chemistry , Stockholm University , SE-106 91 Stockholm , Sweden .
| | - Denise N Meyer
- Department of Organic Chemistry , Stockholm University , SE-106 91 Stockholm , Sweden .
| | - Göran Schulz
- Department of Organic Chemistry , Stockholm University , SE-106 91 Stockholm , Sweden .
| | - C Duc Tran
- Department of Organic Chemistry , Stockholm University , SE-106 91 Stockholm , Sweden .
| | - Lars Eriksson
- Department of Materials and Environmental Chemistry , Stockholm University , SE-106 91 Stockholm , Sweden
| | - Kálmán J Szabó
- Department of Organic Chemistry , Stockholm University , SE-106 91 Stockholm , Sweden .
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107
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Gao DW, Xiao Y, Liu M, Liu Z, Karunananda MK, Chen JS, Engle KM. Catalytic, Enantioselective Synthesis of Allenyl Boronates. ACS Catal 2018; 8:3650-3654. [PMID: 30740261 DOI: 10.1021/acscatal.8b00626] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A method to achieve enantioselective 1,4-hydroboration of terminal enynes to access allenyl boronates under CuH catalysis is described. The reaction typically proceeds in a highly stereoselective manner and tolerates an array of synthetically useful functional groups. The utility of the enantioenriched allenyl boronate products is demonstrated through several representative downstream derivatizations.
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Affiliation(s)
- De-Wei Gao
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Yiyang Xiao
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Mingyu Liu
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Zhen Liu
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Malkanthi K. Karunananda
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Jason S. Chen
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Keary M. Engle
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
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108
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Kim BS, Gutierrez O, Kozlowski MC, Walsh PJ. A Simple Procedure for the Synthesis of β-Hydroxyallenamides via Homoallenylation of Aldehydes. Adv Synth Catal 2018; 360:1426-1432. [PMID: 29861707 DOI: 10.1002/adsc.201800119] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A simple one-pot synthesis of β-hydroxyallenamides is reported. This procedure entails chemo- and regioselective hydroboration of 3-en-1-ynyl-sulfonylamides with Cy2BH followed by homoallenylation of aldehydes to yield β-hydroxyallenamides (up to 94% yield and >20:1 dr). Controlled synthesis of up to three continuous stereochemical elements was realized. Density functional theory (DFT) calculations suggest a concerted Zimmerman-Traxler chair-like transition state. Initial results suggest that enantio- and diastereoselective synthesis of β-hydroxyallenamides with optically active hydroboration reagents is viable.
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Affiliation(s)
- Byeong-Seon Kim
- Department of Chemistry, University of Pennsylvania, 231 S, 34 St. Philadelphia, PA 19104 (USA)
| | - Osvaldo Gutierrez
- Department of Chemistry, University of Pennsylvania, 231 S, 34 St. Philadelphia, PA 19104 (USA)
| | - Marisa C Kozlowski
- Department of Chemistry, University of Pennsylvania, 231 S, 34 St. Philadelphia, PA 19104 (USA)
| | - Patrick J Walsh
- Department of Chemistry, University of Pennsylvania, 231 S, 34 St. Philadelphia, PA 19104 (USA)
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109
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Kato K, Hirano K, Miura M. Copper-Catalyzed Regio- and Enantioselective Aminoboration of Unactivated Terminal Alkenes. Chemistry 2018; 24:5775-5778. [DOI: 10.1002/chem.201801070] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Kodai Kato
- Department of Applied Chemistry; Graduate School of Engineering, Osaka University; Suita Osaka 565-0871 Japan), Fax: (+81) 6-6879-7362
| | - Koji Hirano
- Department of Applied Chemistry; Graduate School of Engineering, Osaka University; Suita Osaka 565-0871 Japan), Fax: (+81) 6-6879-7362
| | - Masahiro Miura
- Department of Applied Chemistry; Graduate School of Engineering, Osaka University; Suita Osaka 565-0871 Japan), Fax: (+81) 6-6879-7362
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110
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Wang HM, Zhou H, Xu QS, Liu TS, Zhuang CL, Shen MH, Xu HD. Copper-Catalyzed Borylative Cyclization of Substituted N-(2-Vinylaryl)benzaldimines. Org Lett 2018. [DOI: 10.1021/acs.orglett.8b00213] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- He-Min Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou 213164, P. R. China
| | - Hao Zhou
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou 213164, P. R. China
| | - Qing-Song Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou 213164, P. R. China
| | - Tai-Shang Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou 213164, P. R. China
| | - Chen-Lu Zhuang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou 213164, P. R. China
| | - Mei-Hua Shen
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou 213164, P. R. China
| | - Hua-Dong Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou 213164, P. R. China
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111
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Li D, Kim J, Yang JW, Yun J. Copper-Catalyzed Asymmetric Synthesis of Borylated cis
-Disubstituted Indolines. Chem Asian J 2018; 13:2365-2368. [DOI: 10.1002/asia.201800121] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 02/08/2018] [Indexed: 11/08/2022]
Affiliation(s)
- DingXi Li
- Department of Chemistry; Sungkyunkwan University; Suwon 16419 Korea
| | - Jiwon Kim
- Department of Chemistry; Sungkyunkwan University; Suwon 16419 Korea
| | - Jung Woon Yang
- Department of Energy Science; Sungkyunkwan University; Suwon 16419 Korea
| | - Jaesook Yun
- Department of Chemistry; Sungkyunkwan University; Suwon 16419 Korea
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112
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Huang Y, del Pozo J, Torker S, Hoveyda AH. Enantioselective Synthesis of Trisubstituted Allenyl-B(pin) Compounds by Phosphine-Cu-Catalyzed 1,3-Enyne Hydroboration. Insights Regarding Stereochemical Integrity of Cu-Allenyl Intermediates. J Am Chem Soc 2018; 140:2643-2655. [PMID: 29417810 PMCID: PMC6019291 DOI: 10.1021/jacs.7b13296] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Catalytic enantioselective boron-hydride additions to 1,3-enynes, which afford allenyl-B(pin) (pin = pinacolato) products, are disclosed. Transformations are promoted by a readily accessible bis-phosphine-Cu complex and involve commercially available HB(pin). The method is applicable to aryl- and alkyl-substituted 1,3-enynes. Trisubstituted allenyl-B(pin) products were generated in 52-80% yield and, in most cases, in >98:2 allenyl:propargyl and 92:8-99:1 enantiomeric ratio. Utility is highlighted through a highly diastereoselective addition to an aldehyde, and a stereospecific catalytic cross-coupling process that delivers an enantiomerically enriched allene with three carbon-based substituents. The following key mechanistic attributes are elucidated: (1) Spectroscopic and computational investigations indicate that low enantioselectivity can arise from loss of kinetic stereoselectivity, which, as suggested by experimental evidence, may occur by formation of a propargylic anion generated by heterolytic Cu-C cleavage. This is particularly a problem when trapping of the Cu-allenyl intermediate is slow, namely, when an electron deficient 1,3-enyne or a less reactive boron-hydride reagent (e.g., HB(dan) (dan = naphthalene-1,8-diaminato)) is used or under non-optimal conditions (e.g., lower boron-hydride concentration causing slower trapping). (2) With enynes that contain a sterically demanding o-aryl substituent considerable amounts of the propargyl-B(pin) isomer may be generated (25-96%) because a less sterically demanding transition state for Cu/B exchange becomes favorable. (3) The phosphine ligand can promote isomerization of the enantiomerically enriched allenyl-B(pin) product; accordingly, lower ligand loading might at times be optimal. (4) Catalytic cross-coupling with an enantiomerically enriched allenyl-B(pin) compound might proceed with high stereospecificity (e.g., phosphine-Pd-catalyzed cross-coupling) or lead to considerable racemization (e.g., phosphine-Cu-catalyzed allylic substitution).
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Affiliation(s)
- Youming Huang
- Department of Chemistry, Merkert Chemistry Center, Boston College Chestnut Hill, Massachusetts 02467
| | - Juan del Pozo
- Department of Chemistry, Merkert Chemistry Center, Boston College Chestnut Hill, Massachusetts 02467
| | - Sebastian Torker
- Department of Chemistry, Merkert Chemistry Center, Boston College Chestnut Hill, Massachusetts 02467
| | - Amir H. Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College Chestnut Hill, Massachusetts 02467
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113
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Chen B, Cao P, Liao Y, Wang M, Liao J. Enantioselective Copper-Catalyzed Methylboration of Alkenes. Org Lett 2018; 20:1346-1349. [DOI: 10.1021/acs.orglett.7b03860] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Bin Chen
- Chengdu
Institute of Biology, Chinese Academy of Sciences, Chengdu
610041, People’s Republic of China and University of Chinese Academy of Sciences, Beijing 10049, People’s Republic of China
- College
of Chemical Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
- College
of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, People’s Republic of China
| | - Peng Cao
- College
of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, People’s Republic of China
| | - Yang Liao
- Chengdu
Institute of Biology, Chinese Academy of Sciences, Chengdu
610041, People’s Republic of China and University of Chinese Academy of Sciences, Beijing 10049, People’s Republic of China
| | - Min Wang
- Chengdu
Institute of Biology, Chinese Academy of Sciences, Chengdu
610041, People’s Republic of China and University of Chinese Academy of Sciences, Beijing 10049, People’s Republic of China
| | - Jian Liao
- Chengdu
Institute of Biology, Chinese Academy of Sciences, Chengdu
610041, People’s Republic of China and University of Chinese Academy of Sciences, Beijing 10049, People’s Republic of China
- College
of Chemical Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
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114
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Gan XC, Zhang Q, Jia XS, Yin L. Asymmetric Construction of Fluoroalkyl Tertiary Alcohols through a Three-Component Reaction of (Bpin)2, 1,3-Enynes, and Fluoroalkyl Ketones Catalyzed by a Copper(I) Complex. Org Lett 2018; 20:1070-1073. [DOI: 10.1021/acs.orglett.7b04039] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Xu-Cheng Gan
- CAS
Key Laboratory of Synthetic Chemistry of Natural Substances, Centre
for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Qi Zhang
- CAS
Key Laboratory of Synthetic Chemistry of Natural Substances, Centre
for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- Department
of Chemistry, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Xue-Shun Jia
- Department
of Chemistry, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Liang Yin
- CAS
Key Laboratory of Synthetic Chemistry of Natural Substances, Centre
for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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115
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Liu Z, Ni HQ, Zeng T, Engle KM. Catalytic Carbo- and Aminoboration of Alkenyl Carbonyl Compounds via Five- and Six-Membered Palladacycles. J Am Chem Soc 2018; 140:3223-3227. [PMID: 29384373 DOI: 10.1021/jacs.8b00881] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A palladium(II)-catalyzed alkene difunctionalization reaction has been developed, wherein B2pin2 is used to trap chelation-stabilized alkylpalladium(II) intermediates that are formed upon nucleopalladation. A range of carbon and nitrogen nucleophiles were found to be suitable coupling partners in this transformation, providing moderate to high yields. Both 3-butenoic and 4-pentenoic acid derivatives were reactive substrate classes, affording β,γ- and γ,δ-difunctionalized carboxylic acid derivatives. This work represents a new strategy to synthesize highly functionalized secondary boronates that complements existing methods.
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Affiliation(s)
- Zhen Liu
- Department of Chemistry , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Hui-Qi Ni
- Department of Chemistry , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Tian Zeng
- Department of Chemistry , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
| | - Keary M Engle
- Department of Chemistry , The Scripps Research Institute , 10550 North Torrey Pines Road , La Jolla , California 92037 , United States
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116
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Wen L, Zhang H, Wang J, Meng F. Cu-catalyzed regioselective borylcyanation of 1,3-dienes. Chem Commun (Camb) 2018; 54:12832-12835. [DOI: 10.1039/c8cc07032f] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Catalytic regioselective generation of an allyl–Cu complex through Cu–B(pin) (pin = pinacolato) addition to 1,3-dienes followed by reaction with an electrophilic cyanation reagent to afford multifunctional organoboron compounds is presented.
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Affiliation(s)
- Lu Wen
- State Key Laboratary of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Haiyan Zhang
- State Key Laboratary of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Jiping Wang
- State Key Laboratary of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Fanke Meng
- State Key Laboratary of Organometallic Chemistry
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
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117
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Sang HL, Yu S, Ge S. Copper-catalyzed asymmetric hydroboration of 1,3-enynes with pinacolborane to access chiral allenylboronates. Org Chem Front 2018. [DOI: 10.1039/c8qo00167g] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A wide range of functionalized 1,3-enynes undergo hydroboration with pinacolborane to produce enantiomerically enriched allenylboronates in the presence of a chiral copper catalyst.
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Affiliation(s)
- Hui Leng Sang
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
| | - Songjie Yu
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
| | - Shaozhong Ge
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Singapore
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118
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Tobisch S. Copper-Catalysed Aminoboration of Vinylarenes with Hydroxylamine Esters-A Computational Mechanistic Study. Chemistry 2017; 23:17800-17809. [PMID: 28926128 DOI: 10.1002/chem.201703803] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Indexed: 11/08/2022]
Abstract
An in-depth computational probe of the copper-mediated formal aminoboration of β-alkylstyrenes with bis(pinacolato)diboron B2 pin2 and an archetype hydroxylamine ester by a dppbz-ligated {P^P}CuI boryl catalyst (dppbz≡{P^P}≡1,2-bis(diphenylphosphino)benzene) is presented. This first comprehensive computational study of the copper-mediated formal aminoboration utilising an electrophilic strategy has identified the most accessible pathway for productive catalysis. The mechanistic picture derived from smooth energy profiles acquired by employing a reliable computational protocol applied to a realistic catalyst model conforms to all available experimental data. The high degree of regio- and stereoselectivity achieved in syn-borylcupration and Umpolung electrophilic amination is instrumental to the exclusive generation of the (syn)-β-aminoalkylborane product. On the one hand, syn-borylcupration furnishes exclusively β-borylalkylcopper nucleophile upon boryl addition onto the vinylarene β-carbon. Its subsequent approach by the hydroxylamine electrophile to deliver the product with the release of {P^P}CuI benzoate favours a stepwise stereoretentive SN 2-type oxidative addition/N-C bond-forming reductive elimination sequence. The copper benzoate species represents the catalyst resting state, and its transformation into the catalytically active borylcopper species upon salt metathesis with Li(OtBu) base and transmetallation with B2 pin2 is turnover limiting. Electronically modified β-alkylstyrenes featuring a para-CF3 substituted phenyl ring render the borylcupration faster, and more electron-rich hydroxylamine agents decelerate the electrophilic amination.
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Affiliation(s)
- Sven Tobisch
- School of Chemistry, University of St Andrews, Purdie Building, North Haugh, St Andrews, Fife, KY16 9ST, UK
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119
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Gong TJ, Yu SH, Li K, Su W, Lu X, Xiao B, Fu Y. Copper-Catalyzed Alkynylboration of Alkenes with Diboron Reagents and Bromoalkynes. Chem Asian J 2017; 12:2884-2888. [DOI: 10.1002/asia.201701176] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 09/11/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Tian-Jun Gong
- Hefei National Laboratory for Physical Sciences at the Microscale; iChEM; CAS Key Laboratory of Urban Pollutant Conversion; Anhui Province Key Laboratory of Biomass Clean Energy; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Shang-Hai Yu
- Hefei National Laboratory for Physical Sciences at the Microscale; iChEM; CAS Key Laboratory of Urban Pollutant Conversion; Anhui Province Key Laboratory of Biomass Clean Energy; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Kuan Li
- Hefei National Laboratory for Physical Sciences at the Microscale; iChEM; CAS Key Laboratory of Urban Pollutant Conversion; Anhui Province Key Laboratory of Biomass Clean Energy; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Wei Su
- Hefei National Laboratory for Physical Sciences at the Microscale; iChEM; CAS Key Laboratory of Urban Pollutant Conversion; Anhui Province Key Laboratory of Biomass Clean Energy; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Xi Lu
- Hefei National Laboratory for Physical Sciences at the Microscale; iChEM; CAS Key Laboratory of Urban Pollutant Conversion; Anhui Province Key Laboratory of Biomass Clean Energy; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Bin Xiao
- Hefei National Laboratory for Physical Sciences at the Microscale; iChEM; CAS Key Laboratory of Urban Pollutant Conversion; Anhui Province Key Laboratory of Biomass Clean Energy; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Yao Fu
- Hefei National Laboratory for Physical Sciences at the Microscale; iChEM; CAS Key Laboratory of Urban Pollutant Conversion; Anhui Province Key Laboratory of Biomass Clean Energy; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
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120
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Huang Y, Smith KB, Brown MK. Copper-Catalyzed Borylacylation of Activated Alkenes with Acid Chlorides. Angew Chem Int Ed Engl 2017; 56:13314-13318. [PMID: 28849603 DOI: 10.1002/anie.201707323] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Indexed: 11/05/2022]
Abstract
A method for the copper-catalyzed borylacylation of activated alkenes is presented. The reaction involves borylcupration of the alkene, followed by capture of the generated alkyl-copper intermediate with an acid chloride. The reactions operated with low catalyst loading and generally occurre within 15 min at room temperature for a range of activated alkenes. In the case of vinyl arenes, enantioselective borylacylation was possible.
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Affiliation(s)
- Yuan Huang
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, IN, 47401, USA
| | - Kevin B Smith
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, IN, 47401, USA
| | - M Kevin Brown
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, IN, 47401, USA
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121
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Huang Y, Smith KB, Brown MK. Copper-Catalyzed Borylacylation of Activated Alkenes with Acid Chlorides. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707323] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yuan Huang
- Department of Chemistry; Indiana University; 800 E. Kirkwood Avenue Bloomington IN 47401 USA
| | - Kevin B. Smith
- Department of Chemistry; Indiana University; 800 E. Kirkwood Avenue Bloomington IN 47401 USA
| | - M. Kevin Brown
- Department of Chemistry; Indiana University; 800 E. Kirkwood Avenue Bloomington IN 47401 USA
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122
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Jang H, Romiti F, Torker S, Hoveyda AH. Catalytic diastereo- and enantioselective additions of versatile allyl groups to N-H ketimines. Nat Chem 2017; 9:1269-1275. [PMID: 29168479 DOI: 10.1038/nchem.2816] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 06/01/2017] [Indexed: 01/25/2023]
Abstract
There are many biologically active organic molecules that contain one or more nitrogen-containing moieties, and broadly applicable and efficient catalytic transformations that deliver them diastereoselectively and/or enantioselectively are much sought after. Various methods for enantioselective synthesis of α-secondary amines are available (for example, from additions to protected/activated aldimines), but those involving ketimines are much less common. There are no reported additions of carbon-based nucleophiles to unprotected/unactivated (or N-H) ketimines. Here, we report a catalytic, diastereo- and enantioselective three-component strategy for merging an N-H ketimine, a monosubstituted allene and B2(pin)2, affording products in up to 95% yield, >98% diastereoselectivity and >99:1 enantiomeric ratio. The utility of the approach is highlighted by synthesis of the tricyclic core of a class of compounds that have been shown to possess anti-Alzheimer activity. Stereochemical models developed with the aid of density functional theory calculations, which account for the observed trends and levels of enantioselectivity, are presented.
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Affiliation(s)
- Hwanjong Jang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA
| | - Filippo Romiti
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA
| | - Sebastian Torker
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA
| | - Amir H Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA
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123
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Pulis AP, Yeung K, Procter DJ. Enantioselective copper catalysed, direct functionalisation of allenes via allyl copper intermediates. Chem Sci 2017; 8:5240-5247. [PMID: 28959423 PMCID: PMC5605774 DOI: 10.1039/c7sc01968h] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 06/01/2017] [Indexed: 11/29/2022] Open
Abstract
We explore the breadth of the copper catalysed functionalisation of allenes, which enables efficient access to enantioenriched, densely functionalised molecules.
The direct functionalisation of allenes under copper catalysis enables efficient access to enantioenriched, densely functionalised molecules. In this review we explore the breadth and depth of a versatile reaction manifold, which involves the element-cupration of allenes to generate allyl copper intermediates that are subsequently coupled with diverse arrays of electrophiles.
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Affiliation(s)
- Alexander P Pulis
- School of Chemistry , University of Manchester , Oxford Rd , Manchester , M13 9PL , UK . ;
| | - Kay Yeung
- School of Chemistry , University of Manchester , Oxford Rd , Manchester , M13 9PL , UK . ;
| | - David J Procter
- School of Chemistry , University of Manchester , Oxford Rd , Manchester , M13 9PL , UK . ;
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124
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Green JC, Joannou MV, Murray SA, Zanghi JM, Meek SJ. Enantio- and Diastereoselective Synthesis of Hydroxy Bis(boronates) via Cu-Catalyzed Tandem Borylation/1,2-Addition. ACS Catal 2017; 7:4441-4445. [PMID: 29520326 PMCID: PMC5837064 DOI: 10.1021/acscatal.7b01123] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Catalytic enantioselective synthesis of 1-hydroxy-2,3-bisboronate esters through multicomponent borylation/1,2-addition is reported. Catalyst and substrates are readily available, form both a C-B and C-C bond, and generate up to three contiguous stereocenters. The reaction is tolerant of aryl, vinyl, and alkyl aldehydes and ketones in up to 95% yield, >20:1 dr, and 99:1 er. Intramolecular additions to aldehydes and ketones result in stereodivergent processes. The hydroxy bis(boronate) ester products are amenable to site-selective chemical elaboration.
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Affiliation(s)
| | | | - Stephanie A. Murray
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290
| | - Joseph M. Zanghi
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290
| | - Simon J. Meek
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290
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125
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Chen B, Cao P, Yin X, Liao Y, Jiang L, Ye J, Wang M, Liao J. Modular Synthesis of Enantioenriched 1,1,2-Triarylethanes by an Enantioselective Arylboration and Cross-Coupling Sequence. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00300] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Bin Chen
- College
of Chemical Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
| | - Peng Cao
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
| | - Xuemei Yin
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
| | - Yang Liao
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
| | - Liyin Jiang
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
| | - Jialin Ye
- College
of Chemical Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
| | - Min Wang
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
| | - Jian Liao
- College
of Chemical Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
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126
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Liu S, Zeng X, Xu B. (E
)-Alkene Synthesis via Nano-Copper/Homogeneous Palladium Co-Catalysis and Selectivity Amplification. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700091] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Shiwen Liu
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 China
| | - Xiaojun Zeng
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 China
| | - Bo Xu
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 China
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127
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Logan KM, Brown MK. Catalytic Enantioselective Arylboration of Alkenylarenes. Angew Chem Int Ed Engl 2017; 56:851-855. [PMID: 28000415 PMCID: PMC5225072 DOI: 10.1002/anie.201609844] [Citation(s) in RCA: 166] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Indexed: 12/15/2022]
Abstract
A method for the catalytic enantioselective arylboration of alkenylarenes is disclosed. The reaction leads to the formation of 1,1-diarylalkanes that also incorporate an additional pinacol boronic ester which can be easily transformed to a variety of groups. The products are formed with excellent diastereoselectivities and enantioselectivities.
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Affiliation(s)
- Kaitlyn M. Logan
- Department of Chemistry, Indiana University 800 E. Kirkwood Ave. Bloomington, IN 47401 (USA)
| | - M. Kevin Brown
- Department of Chemistry, Indiana University 800 E. Kirkwood Ave. Bloomington, IN 47401 (USA)
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128
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Cui J, Wang H, Song J, Chi X, Meng L, Liu Q, Zhang D, Dong Y, Liu H. Copper(i)-catalyzed 5-exo-trig radical cyclization/borylation of alkyl halides: access to functionalized pyrrolidine derivatives. Org Biomol Chem 2017; 15:8508-8512. [DOI: 10.1039/c7ob01831b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work reports the copper(i)-catalyzed 5-exo-trigradical cyclization/borylation of alkyl halides bearing an alkene moiety, during which a C–C bond and a C–B bond were formed in one step.
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Affiliation(s)
- Jie Cui
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Hui Wang
- Shandong Jincheng Kerui Chemical Co
- Ltd
- Zibo 255100
- P.R. China
| | - Jian Song
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Xiaochen Chi
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Long Meng
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Qing Liu
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Daopeng Zhang
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Yunhui Dong
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
| | - Hui Liu
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- P. R. China
- Shandong Jincheng Kerui Chemical Co
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129
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Roy SR, Eijsberg H, Bruffaerts J, Marek I. Zirconocene catalyzed diastereoselective carbometalation of cyclobutenes. Chem Sci 2017; 8:334-339. [PMID: 28451177 PMCID: PMC5365058 DOI: 10.1039/c6sc02617f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 08/04/2016] [Indexed: 01/10/2023] Open
Abstract
The regio- and diastereoselective zirconocene-catalyzed carbomagnesiation of cyclobutenes is herein reported to afford configurationally stable cyclobutylmagnesium species that could subsequently react with a large variety of electrophiles to give polysubstituted cyclobutane species as a single diastereoisomer.
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Affiliation(s)
- Sudipta Raha Roy
- The Mallat Family Laboratory of Organic Chemistry , Schulich Faculty of Chemistry and Lise Meitner-Minerva Center for Computational Quantum Chemistry , Technion-Israel Institute of Technology , Technion City , Haifa 32000 , Israel . ; ; Tel: +972-4-829-37-09
| | - Hendrik Eijsberg
- The Mallat Family Laboratory of Organic Chemistry , Schulich Faculty of Chemistry and Lise Meitner-Minerva Center for Computational Quantum Chemistry , Technion-Israel Institute of Technology , Technion City , Haifa 32000 , Israel . ; ; Tel: +972-4-829-37-09
| | - Jeffrey Bruffaerts
- The Mallat Family Laboratory of Organic Chemistry , Schulich Faculty of Chemistry and Lise Meitner-Minerva Center for Computational Quantum Chemistry , Technion-Israel Institute of Technology , Technion City , Haifa 32000 , Israel . ; ; Tel: +972-4-829-37-09
| | - Ilan Marek
- The Mallat Family Laboratory of Organic Chemistry , Schulich Faculty of Chemistry and Lise Meitner-Minerva Center for Computational Quantum Chemistry , Technion-Israel Institute of Technology , Technion City , Haifa 32000 , Israel . ; ; Tel: +972-4-829-37-09
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130
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Eisold M, Baumann AN, Kiefl GM, Emmerling ST, Didier D. Unsaturated Four-Membered Rings: Efficient Strategies for the Construction of Cyclobutenes and Alkylidenecyclobutanes. Chemistry 2016; 23:1634-1644. [PMID: 27862444 DOI: 10.1002/chem.201604585] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Indexed: 01/08/2023]
Abstract
Our recent studies of the diastereo- and enantioselective formation of strained alkylidenecycloalkanes drove us to more-thoroughly investigate the formation of four-membered rings for which only few efficient methods are described. We first developed a strategy to diversify the saturated part of the four-membered ring and applied it to a highly diastereoselective synthesis of more-elaborate alkylidenecyclobutanes, which completed our precedent studies. In parallel, cyclobutene structures were built employing simple organometallic methods and further functionalized to give a diverse range of new substitution patterns, which consequently enriched the pool of cyclobutene-based building blocks.
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Affiliation(s)
- Michael Eisold
- Department of Chemistry and Pharmacy, Ludwig-Maximilians University of Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Andreas N Baumann
- Department of Chemistry and Pharmacy, Ludwig-Maximilians University of Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Gabriel M Kiefl
- Department of Chemistry and Pharmacy, Ludwig-Maximilians University of Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Sebastian T Emmerling
- Department of Chemistry and Pharmacy, Ludwig-Maximilians University of Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Dorian Didier
- Department of Chemistry and Pharmacy, Ludwig-Maximilians University of Munich, Butenandtstrasse 5-13, 81377, Munich, Germany
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131
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Affiliation(s)
- Kaitlyn M. Logan
- Department of Chemistry Indiana University 800 E. Kirkwood Ave. Bloomington IN 47401 USA
| | - M. Kevin Brown
- Department of Chemistry Indiana University 800 E. Kirkwood Ave. Bloomington IN 47401 USA
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132
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Aldehydes as alkyl carbanion equivalents for additions to carbonyl compounds. Nat Chem 2016; 9:374-378. [DOI: 10.1038/nchem.2677] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 10/18/2016] [Indexed: 11/08/2022]
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133
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Fandrick DR, Hart CA, Okafor IS, Mercadante MA, Sanyal S, Masters JT, Sarvestani M, Fandrick KR, Stockdill JL, Grinberg N, Gonnella N, Lee H, Senanayake CH. Copper-Catalyzed Asymmetric Propargylation of Cyclic Aldimines. Org Lett 2016; 18:6192-6195. [PMID: 27934338 DOI: 10.1021/acs.orglett.6b03253] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The copper-catalyzed asymmetric propargylation of cyclic aldimines is reported. The influence of the imine trimer to inhibit the reaction was identified, and equilibrium constants between the monomer and trimer were determined for general classes of imines. Asymmetric propargylation of a diverse series of N-alkyl and N-aryl aldimines was achieved with good to high asymmetric induction. The utility was demonstrated by a titanium catalyzed hydroamination and reduction to generate the chiral indolizidines (-)-crispine A and (-)-harmicine.
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Affiliation(s)
- Daniel R Fandrick
- Chemical Development and Material and Analytical Sciences, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Old Ridgebury Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Christine A Hart
- Department of Chemistry, Wayne State University , 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Ifeanyi S Okafor
- Chemical Development and Material and Analytical Sciences, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Old Ridgebury Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Michael A Mercadante
- Chemical Development and Material and Analytical Sciences, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Old Ridgebury Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Sanjit Sanyal
- Chemical Development and Material and Analytical Sciences, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Old Ridgebury Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - James T Masters
- Chemical Development and Material and Analytical Sciences, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Old Ridgebury Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Max Sarvestani
- Chemical Development and Material and Analytical Sciences, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Old Ridgebury Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Keith R Fandrick
- Chemical Development and Material and Analytical Sciences, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Old Ridgebury Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Jennifer L Stockdill
- Department of Chemistry, Wayne State University , 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Nelu Grinberg
- Chemical Development and Material and Analytical Sciences, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Old Ridgebury Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Nina Gonnella
- Chemical Development and Material and Analytical Sciences, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Old Ridgebury Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Heewon Lee
- Chemical Development and Material and Analytical Sciences, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Old Ridgebury Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Chris H Senanayake
- Chemical Development and Material and Analytical Sciences, Boehringer-Ingelheim Pharmaceuticals, Inc., 900 Old Ridgebury Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
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134
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Affiliation(s)
- Kai Yang
- Institute
of Next Generation Matter Transformation, College of Chemical Engineering, Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
| | - Qiuling Song
- Institute
of Next Generation Matter Transformation, College of Chemical Engineering, Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
- National
Laboratory for Molecular Sciences, Institute of Chemistry, CAS, Beijing 100190, P. R. China
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135
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Jiang L, Cao P, Wang M, Chen B, Wang B, Liao J. Highly Diastereo- and Enantioselective Cu-Catalyzed Borylative Coupling of 1,3-Dienes and Aldimines. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607493] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Liyin Jiang
- Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu 610041 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Peng Cao
- Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu 610041 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Min Wang
- Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu 610041 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Bin Chen
- College of Chemical Engineering; Sichuan University; Chengdu 610065 China
| | - Bing Wang
- Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu 610041 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Jian Liao
- Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu 610041 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- College of Chemical Engineering; Sichuan University; Chengdu 610065 China
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136
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Jiang L, Cao P, Wang M, Chen B, Wang B, Liao J. Highly Diastereo- and Enantioselective Cu-Catalyzed Borylative Coupling of 1,3-Dienes and Aldimines. Angew Chem Int Ed Engl 2016; 55:13854-13858. [DOI: 10.1002/anie.201607493] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 08/29/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Liyin Jiang
- Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu 610041 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Peng Cao
- Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu 610041 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Min Wang
- Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu 610041 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Bin Chen
- College of Chemical Engineering; Sichuan University; Chengdu 610065 China
| | - Bing Wang
- Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu 610041 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Jian Liao
- Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu 610041 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- College of Chemical Engineering; Sichuan University; Chengdu 610065 China
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137
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Nishikawa D, Hirano K, Miura M. Copper-Catalyzed Regio- and Stereoselective Aminoboration of Alkenylboronates. Org Lett 2016; 18:4856-4859. [DOI: 10.1021/acs.orglett.6b02338] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Daiki Nishikawa
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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138
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Yeung K, Ruscoe RE, Rae J, Pulis AP, Procter DJ. Enantioselective Generation of Adjacent Stereocenters in a Copper-Catalyzed Three-Component Coupling of Imines, Allenes, and Diboranes. Angew Chem Int Ed Engl 2016; 55:11912-6. [PMID: 27539673 PMCID: PMC5103189 DOI: 10.1002/anie.201606710] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Indexed: 01/06/2023]
Abstract
A highly enantio- and diastereoselective copper-catalyzed three-component coupling affords the first general synthesis of homoallylic amines bearing adjacent stereocenters from achiral starting materials. The method utilizes a commercially available NHC ligand and copper source, operates at ambient temperature, couples readily available simple imines, allenes, and diboranes, and yields high-value homoallylic amines that exhibit versatile amino, alkenyl, and boryl units.
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Affiliation(s)
- Kay Yeung
- School of Chemistry, University of Manchester, Oxford Rd, Manchester, M13 9PL, UK
| | - Rebecca E Ruscoe
- School of Chemistry, University of Manchester, Oxford Rd, Manchester, M13 9PL, UK
| | - James Rae
- School of Chemistry, University of Manchester, Oxford Rd, Manchester, M13 9PL, UK
| | - Alexander P Pulis
- School of Chemistry, University of Manchester, Oxford Rd, Manchester, M13 9PL, UK
| | - David J Procter
- School of Chemistry, University of Manchester, Oxford Rd, Manchester, M13 9PL, UK.
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139
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Su W, Gong TJ, Zhang Q, Zhang Q, Xiao B, Fu Y. Ligand-Controlled Regiodivergent Copper-Catalyzed Alkylboration of Unactivated Terminal Alkynes. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02039] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Wei Su
- Hefei National Laboratory
for Physical Sciences at the Microscale, iChEM, CAS Key Laboratory
of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass
Clean Energy, University of Science and Technology of China, Hefei 230026, China
| | - Tian-Jun Gong
- Hefei National Laboratory
for Physical Sciences at the Microscale, iChEM, CAS Key Laboratory
of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass
Clean Energy, University of Science and Technology of China, Hefei 230026, China
| | - Qi Zhang
- Hefei National Laboratory
for Physical Sciences at the Microscale, iChEM, CAS Key Laboratory
of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass
Clean Energy, University of Science and Technology of China, Hefei 230026, China
| | - Qing Zhang
- Hefei National Laboratory
for Physical Sciences at the Microscale, iChEM, CAS Key Laboratory
of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass
Clean Energy, University of Science and Technology of China, Hefei 230026, China
| | - Bin Xiao
- Hefei National Laboratory
for Physical Sciences at the Microscale, iChEM, CAS Key Laboratory
of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass
Clean Energy, University of Science and Technology of China, Hefei 230026, China
| | - Yao Fu
- Hefei National Laboratory
for Physical Sciences at the Microscale, iChEM, CAS Key Laboratory
of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass
Clean Energy, University of Science and Technology of China, Hefei 230026, China
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140
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Yeung K, Ruscoe RE, Rae J, Pulis AP, Procter DJ. Enantioselective Generation of Adjacent Stereocenters in a Copper-Catalyzed Three-Component Coupling of Imines, Allenes, and Diboranes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606710] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Kay Yeung
- School of Chemistry; University of Manchester; Oxford Rd Manchester M13 9PL UK
| | - Rebecca E. Ruscoe
- School of Chemistry; University of Manchester; Oxford Rd Manchester M13 9PL UK
| | - James Rae
- School of Chemistry; University of Manchester; Oxford Rd Manchester M13 9PL UK
| | - Alexander P. Pulis
- School of Chemistry; University of Manchester; Oxford Rd Manchester M13 9PL UK
| | - David J. Procter
- School of Chemistry; University of Manchester; Oxford Rd Manchester M13 9PL UK
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141
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Imamoto T, Horiuchi Y, Tamura K, Sugiya M, Masu H. Catalyst-Free and Regioconvergent Substitution Reactions of Bromothiophenes with a BH 3-Substituted Phosphide Anion. Org Lett 2016; 18:4132-5. [DOI: 10.1021/acs.orglett.6b02094] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tsuneo Imamoto
- Organic R&D Department, Nippon Chemical Industrial Co., Ltd., Kameido, Koto-ku, Tokyo, 136-8515, Japan
- Department
of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Yumi Horiuchi
- Organic R&D Department, Nippon Chemical Industrial Co., Ltd., Kameido, Koto-ku, Tokyo, 136-8515, Japan
| | - Ken Tamura
- Organic R&D Department, Nippon Chemical Industrial Co., Ltd., Kameido, Koto-ku, Tokyo, 136-8515, Japan
| | - Masashi Sugiya
- Organic R&D Department, Nippon Chemical Industrial Co., Ltd., Kameido, Koto-ku, Tokyo, 136-8515, Japan
| | - Hyuma Masu
- Center
for Analytical Instrumentation, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
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142
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143
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144
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Li X, Meng F, Torker S, Shi Y, Hoveyda AH. Catalytic Enantioselective Conjugate Additions of (pin)B-Substituted Allylcopper Compounds Generated in situ from Butadiene or Isoprene. Angew Chem Int Ed Engl 2016; 55:9997-10002. [PMID: 27436785 DOI: 10.1002/anie.201605001] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Indexed: 02/03/2023]
Abstract
Multicomponent catalytic enantioselective transformations that entail the combination of butadiene or isoprene (common feedstock), an enoate (prepared in one step) and B2 (pin)2 (commercially available) are presented. These processes constitute an uncommon instance of conjugate addition of an allyl moiety and afford the desired products in up to 83 % yield and 98:2 enantiomeric ratio. Based on DFT calculations stereochemical models and rationale for the observed profiles in selectivity are provided.
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Affiliation(s)
- Xiben Li
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Fanke Meng
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Sebastian Torker
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Ying Shi
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA
| | - Amir H Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA.
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145
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Li X, Meng F, Torker S, Shi Y, Hoveyda AH. Catalytic Enantioselective Conjugate Additions of (pin)B‐Substituted Allylcopper Compounds Generated in situ from Butadiene or Isoprene. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605001] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Xiben Li
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Fanke Meng
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Sebastian Torker
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Ying Shi
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
| | - Amir H. Hoveyda
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
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146
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Neeve EC, Geier SJ, Mkhalid IAI, Westcott SA, Marder TB. Diboron(4) Compounds: From Structural Curiosity to Synthetic Workhorse. Chem Rev 2016; 116:9091-161. [PMID: 27434758 DOI: 10.1021/acs.chemrev.6b00193] [Citation(s) in RCA: 748] [Impact Index Per Article: 93.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Although known for over 90 years, only in the past two decades has the chemistry of diboron(4) compounds been extensively explored. Many interesting structural features and reaction patterns have emerged, and more importantly, these compounds now feature prominently in both metal-catalyzed and metal-free methodologies for the formation of B-C bonds and other processes.
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Affiliation(s)
- Emily C Neeve
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg , Würzburg 97074, Germany
| | - Stephen J Geier
- Mount Allison University , Department of Biochemistry and Chemistry, Sackville, New Brunswick E4L 1G8, Canada
| | | | - Stephen A Westcott
- Mount Allison University , Department of Biochemistry and Chemistry, Sackville, New Brunswick E4L 1G8, Canada
| | - Todd B Marder
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg , Würzburg 97074, Germany
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147
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Pellissier H. Recent Developments in Enantioselective Metal-Catalyzed Domino Reactions. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600462] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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148
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Yang Y, Perry IB, Lu G, Liu P, Buchwald SL. Copper-catalyzed asymmetric addition of olefin-derived nucleophiles to ketones. Science 2016; 353:144-50. [PMID: 27284169 DOI: 10.1126/science.aaf7720] [Citation(s) in RCA: 192] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 05/20/2016] [Indexed: 01/20/2023]
Abstract
Enantioenriched alcohols found in an array of bioactive natural products and pharmaceutical agents are often synthesized by asymmetric nucleophilic addition to carbonyls. However, this approach generally shows limited functional-group compatibility, requiring the use of preformed organometallic reagents in conjunction with a stoichiometric or substoichiometric amount of chiral controller to deliver optically active alcohols. Herein we report a copper-catalyzed strategy for the stereoselective nucleophilic addition of propargylic and other alkyl groups to ketones, using easily accessible (poly)unsaturated hydrocarbons as latent carbanion equivalents. Our method features the catalytic generation of highly enantioenriched organocopper intermediates and their subsequent diastereoselective addition to ketones, allowing for the effective construction of highly substituted stereochemical dyads with excellent stereocontrol. Moreover, this process is general, scalable, and occurs at ambient temperature.
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Affiliation(s)
- Yang Yang
- Department of Chemistry, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA
| | - Ian B Perry
- Department of Chemistry, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA
| | - Gang Lu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA.
| | - Stephen L Buchwald
- Department of Chemistry, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA.
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149
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Xu HD, Wu H, Jiang C, Chen P, Shen MH. Chemo-, regio-, and stereoselective hydroboration of conjugated enyne alcohol/amine: facile synthesis of Z , Z -/ Z , E -1,3-dien-1/2-ylboronic ester bearing hydroxyl/amino group. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.05.075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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150
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Bandar J, Ascic E, Buchwald SL. Enantioselective CuH-Catalyzed Reductive Coupling of Aryl Alkenes and Activated Carboxylic Acids. J Am Chem Soc 2016; 138:5821-4. [PMID: 27121395 PMCID: PMC4866599 DOI: 10.1021/jacs.6b03086] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Indexed: 12/19/2022]
Abstract
A new method for the enantioselective reductive coupling of aryl alkenes with activated carboxylic acid derivatives via copper hydride catalysis is described. Dual catalytic cycles are proposed, with a relatively fast enantioselective hydroacylation cycle followed by a slower diastereoselective ketone reduction cycle. Symmetrical aryl carboxyclic anhydrides provide access to enantioenriched α-substituted ketones or alcohols with excellent stereoselectivity and functional group tolerance.
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Affiliation(s)
- Jeffrey
S. Bandar
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Erhad Ascic
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Stephen L. Buchwald
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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