1
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Gao MY, Gosmini C. Cobalt-Catalyzed Reductive Cross-Coupling To Construct Csp 3-Csp 3 Bonds via Csp 3-S and Csp 3-X Bonds Activation. Org Lett 2023; 25:7689-7693. [PMID: 37851934 DOI: 10.1021/acs.orglett.3c02993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
A cross-electrophilic coupling of benzyl sulfonium salts with alkyl halides forming Csp3-Csp3 bonds is described by using a Co-based catalytic system. The activation of the stable Csp3-S bond of benzyl sulfonium salts under mild reaction conditions leads to various functionalized alkyl derivatives. Preliminary mechanistic studies suggest the involvement of alkyl radicals formed from both alkyl halides and benzyl sulfoniums through a single electron transfer.
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Affiliation(s)
- Meng-Yu Gao
- Laboratoire de Chimie Moléculaire, École Polytechnique, Institut Polytechnique de Paris, CNRS Route de Saclay 91128 Palaiseau cedex, France
| | - Corinne Gosmini
- Laboratoire de Chimie Moléculaire, École Polytechnique, Institut Polytechnique de Paris, CNRS Route de Saclay 91128 Palaiseau cedex, France
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2
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Charboneau DJ, Hazari N, Huang H, Uehling MR, Zultanski SL. Homogeneous Organic Electron Donors in Nickel-Catalyzed Reductive Transformations. J Org Chem 2022; 87:7589-7609. [PMID: 35671350 DOI: 10.1021/acs.joc.2c00462] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Many contemporary organic transformations, such as Ni-catalyzed cross-electrophile coupling (XEC), require a reductant. Typically, heterogeneous reductants, such as Zn0 or Mn0, are used as the electron source in these reactions. Although heterogeneous reductants are highly practical for preparative-scale batch reactions, they can lead to complications in performing reactions on process scale and are not easily compatible with modern applications, such as flow chemistry. In principle, homogeneous organic reductants can address some of the challenges associated with heterogeneous reductants and also provide greater control of the reductant strength, which can lead to new reactivity. Nevertheless, homogeneous organic reductants have rarely been used in XEC. In this Perspective, we summarize recent progress in the use of homogeneous organic electron donors in Ni-catalyzed XEC and related reactions, discuss potential synthetic and mechanistic benefits, describe the limitations that inhibit their implementation, and outline challenges that need to be solved in order for homogeneous organic reductants to be widely utilized in synthetic chemistry. Although our focus is on XEC, our discussion of the strengths and weaknesses of different methods for introducing electrons is general to other reductive transformations.
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Affiliation(s)
- David J Charboneau
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Nilay Hazari
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Haotian Huang
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Mycah R Uehling
- Discovery Chemistry, HTE and Lead Discovery Capabilities, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Susan L Zultanski
- Department of Process Research and Development, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
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3
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Trunks TM, Babra JS, Westwood J, Smith CD. A Homocoupling Approach to the Key Dione of CyMe4-BTPhen – Vital Ligands for Nuclear Clean-Up by the SANEX Process. SYNOPEN 2022. [DOI: 10.1055/a-1737-8610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
CyMe4-BTPhen and CyMe4-BTBP are the principal ligand systems used in Europe for the separation of actinides from lanthanides as a part of the SANEX process for nuclear recycling and reprocessing. We present a new approach to the synthesis of the CyMe4-fragment beginning from readily available hydroxypivalic acid. It features a cobalt-catalysed homocoupling of a neopentyl bromide to provide the key bis-ester precursor, thereby avoiding the requirement for technically challenging low temperature LDA-mediated aldol chemistries.
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Affiliation(s)
- Thomas M Trunks
- Department of Chemistry, University of Reading, Reading, United Kingdom of Great Britain and Northern Ireland
| | - Jasraj Singh Babra
- Department of Chemistry, University of Reading, Reading, United Kingdom of Great Britain and Northern Ireland
| | - James Westwood
- Department of Chemistry, University of Reading, Reading, United Kingdom of Great Britain and Northern Ireland
| | - Christopher David Smith
- Department of Chemistry, University of Reading, Reading, United Kingdom of Great Britain and Northern Ireland
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4
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Reddy BRP, Auffrant A, Gosmini C. Dehalogenation and Desulfonation from Aryl and Alkyl Compounds with a Cobalt Catalyst in the Presence of Alcohol. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | - Audrey Auffrant
- Laboratoire de Chimie Moléculaire CNRS, École Polytechnique, IP Paris 91128 Palaiseau France
| | - Corinne Gosmini
- Laboratoire de Chimie Moléculaire CNRS, École Polytechnique, IP Paris 91128 Palaiseau France
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5
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Boldrini C, Harutyunyan SR. Pd-catalyzed allylative dearomatisation using Grignard reagents. Chem Commun (Camb) 2021; 57:11807-11810. [PMID: 34693941 PMCID: PMC8577247 DOI: 10.1039/d1cc05609c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Pd-catalyzed allylative dearomatisation of naphthyl halides is shown to be feasible by employing Grignard reagents. The high reactivity of the nucleophile allows for fast reactions and low catalyst loading, while a plethora of successfully substituted compounds illustrate the broad scope. Five membered heteroaromatic compounds are also demonstrated to be reactive under similar conditions. Dearomatisation of benzylic halides have been achieved using Grignard reagents resulting in good isolated yields in short reaction times.![]()
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Affiliation(s)
- Cosimo Boldrini
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, Groningen, 9747 AG, The Netherlands.
| | - Syuzanna R Harutyunyan
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, Groningen, 9747 AG, The Netherlands.
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6
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Shu XZ, Pan FF, Guo P, Huang X. Synthesis of Dibenzyls by Nickel-Catalyzed Homocoupling of Benzyl Alcohols. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1467-2432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractDibenzyls are essential building blocks that are widely used in organic synthesis, and they are typically prepared by the homocoupling of halides, organometallics, and ethers. Herein, we report an approach to this class of compounds using alcohols, which are more stable and readily available. The reaction proceeds via nickel-catalyzed and dimethyl oxalate assisted dynamic kinetic homocoupling of benzyl alcohols. Both primary and secondary alcohols are tolerated.
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Affiliation(s)
- Xing-Zhong Shu
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University
| | - Feng-Feng Pan
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University
- College of Chemical Engineering and Technology, Tianshui Normal University
| | - Peng Guo
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), College of Chemistry and Chemical Engineering, Lanzhou University
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7
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Dorval C, Tricoire M, Begouin JM, Gandon V, Gosmini C. Cobalt-Catalyzed C(sp2)–CN Bond Activation: Cross-Electrophile Coupling for Biaryl Formation and Mechanistic Insight. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03903] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Céline Dorval
- Laboratoire de Chimie Moléculaire, CNRS UMR 9168, École Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau Cedex, France
| | - Maxime Tricoire
- Laboratoire de Chimie Moléculaire, CNRS UMR 9168, École Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau Cedex, France
| | - Jeanne-Marie Begouin
- Laboratoire de Chimie Moléculaire, CNRS UMR 9168, École Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau Cedex, France
| | - Vincent Gandon
- Laboratoire de Chimie Moléculaire, CNRS UMR 9168, École Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau Cedex, France
- Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), CNRS UMR 8182, Université Paris-Saclay, Bâtiment 420, 91405 Orsay Cedex, France
| | - Corinne Gosmini
- Laboratoire de Chimie Moléculaire, CNRS UMR 9168, École Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau Cedex, France
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8
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Sawama Y, Ban K, Akutsu-Suyama K, Nakata H, Mori M, Yamada T, Kawajiri T, Yasukawa N, Park K, Monguchi Y, Takagi Y, Yoshimura M, Sajiki H. Birch-Type Reduction of Arenes in 2-Propanol Catalyzed by Zero-Valent Iron and Platinum on Carbon. ACS OMEGA 2019; 4:11522-11531. [PMID: 31460258 PMCID: PMC6682079 DOI: 10.1021/acsomega.9b01130] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 06/20/2019] [Indexed: 06/10/2023]
Abstract
Catalytic arene reduction was effectively realized by heating in 2-propanol/water in the presence of Pt on carbon (Pt/C) and metallic Fe. 2-Propanol acted as a hydrogen source, obviating the need for flammable (and hence, dangerous and hard-to-handle) hydrogen gas, while metallic Fe acted as an essential co-catalyst to promote reduction. The chemical states of Pt and Fe in the reaction mixture were determined by X-ray absorption near-edge structure analysis, and the obtained results were used to suggest a plausible reaction mechanism, implying that catalytic reduction involved Pt- and Fe-mediated single-electron transfer and the dehydrogenation of 2-propanol.
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Affiliation(s)
- Yoshinari Sawama
- Laboratory
of Organic Chemistry, Gifu Pharmaceutical
University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Kazuho Ban
- Laboratory
of Organic Chemistry, Gifu Pharmaceutical
University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Kazuhiro Akutsu-Suyama
- Neutron
Science and Technology Center, Comprehensive
Research Organization for Science and Society (CROSS), 162-1 Shirakata, Tokai-Mura, Naka-gun, Ibaraki 319-1106, Japan
| | - Hiroki Nakata
- Laboratory
of Organic Chemistry, Gifu Pharmaceutical
University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Misato Mori
- Laboratory
of Organic Chemistry, Gifu Pharmaceutical
University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Tsuyoshi Yamada
- Laboratory
of Organic Chemistry, Gifu Pharmaceutical
University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Takahiro Kawajiri
- Laboratory
of Organic Chemistry, Gifu Pharmaceutical
University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Naoki Yasukawa
- Laboratory
of Organic Chemistry, Gifu Pharmaceutical
University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Kwihwan Park
- Laboratory
of Organic Chemistry, Gifu Pharmaceutical
University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Yasunari Monguchi
- Laboratory
of Organic Chemistry, Gifu Pharmaceutical
University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Yukio Takagi
- Catalyst
Development Center, N. E. Chemcat Corporation, 678 Ipponmatsu, Numazu, Shizuoka 410-0314, Japan
| | - Masatoshi Yoshimura
- Catalyst
Development Center, N. E. Chemcat Corporation, 678 Ipponmatsu, Numazu, Shizuoka 410-0314, Japan
| | - Hironao Sajiki
- Laboratory
of Organic Chemistry, Gifu Pharmaceutical
University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
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9
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Liu Y, Zhang D, Xiao S, Qi Y, Liu S. Copper‐Catalyzed Homocoupling of Alkyl Halides in the Presence of Samarium. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900254] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yongjun Liu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science Ministry of Education State Key Laboratory Base of Eco-chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and Technology Zhengzhou Rd. #53 Qingdao 266042 P.R. China
| | - Dianming Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science Ministry of Education State Key Laboratory Base of Eco-chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and Technology Zhengzhou Rd. #53 Qingdao 266042 P.R. China
| | - Shuhuan Xiao
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science Ministry of Education State Key Laboratory Base of Eco-chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and Technology Zhengzhou Rd. #53 Qingdao 266042 P.R. China
| | - Yan Qi
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science Ministry of Education State Key Laboratory Base of Eco-chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and Technology Zhengzhou Rd. #53 Qingdao 266042 P.R. China
| | - Shufeng Liu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science Ministry of Education State Key Laboratory Base of Eco-chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and Technology Zhengzhou Rd. #53 Qingdao 266042 P.R. China
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10
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Komeyama K, Tsunemitsu R, Michiyuki T, Yoshida H, Osaka I. Ni/Co-Catalyzed Homo-Coupling of Alkyl Tosylates. Molecules 2019; 24:molecules24081458. [PMID: 31013850 PMCID: PMC6515247 DOI: 10.3390/molecules24081458] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 04/10/2019] [Accepted: 04/11/2019] [Indexed: 11/23/2022] Open
Abstract
A direct reductive homo-coupling of alkyl tosylates has been developed by employing a combination of nickel and nucleophilic cobalt catalysts. A single-electron-transfer-type oxidative addition is a pivotal process in the well-established nickel-catalyzed coupling of alkyl halides. However, the method cannot be applied to the homo-coupling of ubiquitous alkyl tosylates due to the high-lying σ*(C–O) orbital of the tosylates. This paper describes a Ni/Co-catalyzed protocol for the activation of alkyl tosylates on the construction of alkyl dimers under mild conditions.
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Affiliation(s)
- Kimihiro Komeyama
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima City, Hiroshima 739-8527, Japan.
| | - Ryusuke Tsunemitsu
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima City, Hiroshima 739-8527, Japan.
| | - Takuya Michiyuki
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima City, Hiroshima 739-8527, Japan.
| | - Hiroto Yoshida
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima City, Hiroshima 739-8527, Japan.
| | - Itaru Osaka
- 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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11
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Lin T, Mi J, Song L, Gan J, Luo P, Mao J, Walsh PJ. Nickel-Catalyzed Desymmetrizing Cross-Electrophile Coupling of Cyclic Meso-Anhydrides. Org Lett 2018; 20:1191-1194. [DOI: 10.1021/acs.orglett.8b00114] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Tingzhi Lin
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Jianjun Mi
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Lichao Song
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Jiamin Gan
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Pan Luo
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Jianyou Mao
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Patrick J. Walsh
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
- Roy
and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
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12
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Hammann JM, Thomas L, Chen YH, Haas D, Knochel P. Cobalt-Catalyzed Cross-Couplings of Bench-Stable Alkynylzinc Pivalates with (Hetero)Aryl and Alkenyl Halides. Org Lett 2017; 19:3847-3850. [DOI: 10.1021/acs.orglett.7b01722] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jeffrey M. Hammann
- Department of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Lucie Thomas
- Department of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Yi-Hung Chen
- Department of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Diana Haas
- Department of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Paul Knochel
- Department of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
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13
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Lévêque C, Corcé V, Chenneberg L, Ollivier C, Fensterbank L. Photoredox/Nickel Dual Catalysis for the C(sp3
)-C(sp3
) Cross-Coupling of Alkylsilicates with Alkyl Halides. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601571] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Christophe Lévêque
- UPMC Univ Paris 06, CNRS; Institut Parisien de Chimie Moléculaire, UMR 8232; Sorbonne Universités; 4 place Jussieu 75005 Paris France
| | - Vincent Corcé
- UPMC Univ Paris 06, CNRS; Institut Parisien de Chimie Moléculaire, UMR 8232; Sorbonne Universités; 4 place Jussieu 75005 Paris France
| | - Ludwig Chenneberg
- UPMC Univ Paris 06, CNRS; Institut Parisien de Chimie Moléculaire, UMR 8232; Sorbonne Universités; 4 place Jussieu 75005 Paris France
| | - Cyril Ollivier
- UPMC Univ Paris 06, CNRS; Institut Parisien de Chimie Moléculaire, UMR 8232; Sorbonne Universités; 4 place Jussieu 75005 Paris France
| | - Louis Fensterbank
- UPMC Univ Paris 06, CNRS; Institut Parisien de Chimie Moléculaire, UMR 8232; Sorbonne Universités; 4 place Jussieu 75005 Paris France
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14
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Liu Y, Xiao S, Qi Y, Du F. Reductive Homocoupling of Organohalides Using Nickel(II) Chloride and Samarium Metal. Chem Asian J 2017; 12:673-678. [DOI: 10.1002/asia.201601712] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Revised: 01/24/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Yongjun Liu
- State Key Laboratory Base of Eco-chemical Engineering; Key Laboratory of Sensor Analysis of Tumor Marker; Ministry of Education; College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; Qingdao 266042 P. R. China
| | - Shuhuan Xiao
- State Key Laboratory Base of Eco-chemical Engineering; Key Laboratory of Sensor Analysis of Tumor Marker; Ministry of Education; College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; Qingdao 266042 P. R. China
| | - Yan Qi
- State Key Laboratory Base of Eco-chemical Engineering; Key Laboratory of Sensor Analysis of Tumor Marker; Ministry of Education; College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; Qingdao 266042 P. R. China
| | - Feng Du
- State Key Laboratory Base of Eco-chemical Engineering; Key Laboratory of Sensor Analysis of Tumor Marker; Ministry of Education; College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; Qingdao 266042 P. R. China
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15
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Hofmayer MS, Hammann JM, Haas D, Knochel P. Cobalt-Catalyzed C(sp 2)-C(sp 3) Cross-Coupling Reactions of Diarylmanganese Reagents with Secondary Alkyl Iodides. Org Lett 2016; 18:6456-6459. [PMID: 27978689 DOI: 10.1021/acs.orglett.6b03349] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A cobalt-catalyzed cross-coupling of diarylmanganese reagents with secondary alkyl iodides using the THF-soluble salt CoCl2·2LiCl, which leads to the cross-coupling products in up to 92% yield, is reported. High diastereoselectivities can be reached in these cross-couplings (dr up to 99:1). Remarkably, rearrangement of secondary alkyl iodides to unbranched products was not observed in these C-C forming reactions.
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Affiliation(s)
- Maximilian S Hofmayer
- Department of Chemistry, Ludwig-Maximilians-Universität , Butenandtstrasse 5-13, 81377 München, Germany
| | - Jeffrey M Hammann
- Department of Chemistry, Ludwig-Maximilians-Universität , Butenandtstrasse 5-13, 81377 München, Germany
| | - Diana Haas
- Department of Chemistry, Ludwig-Maximilians-Universität , Butenandtstrasse 5-13, 81377 München, Germany
| | - Paul Knochel
- Department of Chemistry, Ludwig-Maximilians-Universität , Butenandtstrasse 5-13, 81377 München, Germany
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16
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Cai Y, Benischke AD, Knochel P, Gosmini C. Cobalt-Catalyzed Reductive Cross-Coupling Between Styryl and Benzyl Halides. Chemistry 2016; 23:250-253. [PMID: 27762460 DOI: 10.1002/chem.201603832] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Indexed: 12/14/2022]
Abstract
A simple and efficient protocol for the direct reductive cross-coupling between alkenyl and benzyl halides using a Co/Mn system has been developed. This reaction proceeds smoothly in the presence of [CoBr2 (PPh3 )2 ] as the catalyst, with NaI as an additive in acetonitrile with a broad scope of functionalized alkenyl and benzyl halides. Different functional groups are tolerated on both coupling partners, thus, significantly extending the general scope of transition-metal-catalyzed benzylation of alkenyl halides. Moderate to excellent yields were also obtained. From a mechanistic point of view, a radical chain mechanism was proposed. This reaction is stereospecific and some studies suggest the retention of the double-bond configuration.
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Affiliation(s)
- Yingxiao Cai
- LCM, CNRS, Ecole Polytechnique, Université Paris-Saclay, 91128, Palaiseau, France
| | - Andreas D Benischke
- Department of Chemistry, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377, Munich, Germany
| | - Paul Knochel
- Department of Chemistry, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377, Munich, Germany
| | - Corinne Gosmini
- LCM, CNRS, Ecole Polytechnique, Université Paris-Saclay, 91128, Palaiseau, France
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17
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Fallon BJ, Corcé V, Amatore M, Aubert C, Chemla F, Ferreira F, Perez-Luna A, Petit M. A well-defined low-valent cobalt catalyst Co(PMe3)4 with dimethylzinc: a simple catalytic approach for the reductive dimerization of benzyl halides. NEW J CHEM 2016. [DOI: 10.1039/c6nj03265f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
We report a simple catalytic version of a cobalt-catalysed reductive homocoupling of benzyl halides by combining Co(PMe3)4 and Me2Zn.
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Affiliation(s)
- Brendan J. Fallon
- Sorbonne Universités
- UPMC Univ Paris 06
- Institut Parisien de Chimie Moléculaire
- UMR CNRS 8232
- Case 229
| | - Vincent Corcé
- Sorbonne Universités
- UPMC Univ Paris 06
- Institut Parisien de Chimie Moléculaire
- UMR CNRS 8232
- Case 229
| | - Muriel Amatore
- Sorbonne Universités
- UPMC Univ Paris 06
- Institut Parisien de Chimie Moléculaire
- UMR CNRS 8232
- Case 229
| | - Corinne Aubert
- Sorbonne Universités
- UPMC Univ Paris 06
- Institut Parisien de Chimie Moléculaire
- UMR CNRS 8232
- Case 229
| | - Fabrice Chemla
- Sorbonne Universités
- UPMC Univ Paris 06
- Institut Parisien de Chimie Moléculaire
- UMR CNRS 8232
- Case 229
| | - Franck Ferreira
- Sorbonne Universités
- UPMC Univ Paris 06
- Institut Parisien de Chimie Moléculaire
- UMR CNRS 8232
- Case 229
| | - Alejandro Perez-Luna
- Sorbonne Universités
- UPMC Univ Paris 06
- Institut Parisien de Chimie Moléculaire
- UMR CNRS 8232
- Case 229
| | - Marc Petit
- Sorbonne Universités
- UPMC Univ Paris 06
- Institut Parisien de Chimie Moléculaire
- UMR CNRS 8232
- Case 229
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