1
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Sun Y, Zhao T, Wang H, Pan Y, Huang L, Feng H. Precision Propargylic Substitution Reaction: Pd-Catalyzed Suzuki-Miyaura Coupling of Nonactivated Propargylamines with Boronic Acids. J Org Chem 2024; 89:13774-13781. [PMID: 39215753 DOI: 10.1021/acs.joc.4c01519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Palladium-catalyzed Suzuki-Miyaura cross-coupling is an efficient approach for C-C bond construction. Here we report a deaminative Suzuki-Miyaura reaction to achieve chemo- and regioselectivity in the cross-coupling of nonactivated propargylamines with boronic acids, in which methyl propiolate is introduced to promote the cleavage of the C-N bond to form the C-C bond. This method features a wide range of substrates, good functional group tolerance, and ease of operation, providing an alternative approach to accessing valuable propargylated aromatic compounds.
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Affiliation(s)
- Yan Sun
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Tao Zhao
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Haixiang Wang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Ya Pan
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Liliang Huang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Huangdi Feng
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
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2
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Iwabuchi S, Morofuji T, Kano N. Synthesis, structure, and alkynylation reactivity of alkynyl-silicate, -germanate, and -stannate. Dalton Trans 2024; 53:10829-10833. [PMID: 38898710 DOI: 10.1039/d4dt01688b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
The first anionic pentacoordinated group 14 compounds bearing a phenylethynyl substituent were successfully synthesized and crystallographically characterized. The synthesized ate-type compounds were stable in air, water, and some acids, allowing their application as reagents for the nucleophilic alkynylation of carbon electrophiles.
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Affiliation(s)
- Shuta Iwabuchi
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo 171-8588, Japan.
| | - Tatsuya Morofuji
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo 171-8588, Japan.
| | - Naokazu Kano
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo 171-8588, Japan.
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3
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Cao J, Ding W, Zou G. Tetrabutylammonium Bromide (TBAB)-Promoted, Pd/Cu-Catalyzed Sonogashira Coupling of N-Tosyl Aryltriazenes. Org Lett 2024; 26:4576-4580. [PMID: 38775280 DOI: 10.1021/acs.orglett.4c01565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
Sonogashira coupling of N-tosyl aryltriazenes is reported to offer arylalkynes in yields up to 92% with the aid of tetrabutylammonium bromide (TBAB) as a dual activator for both the palladium catalyst and aryltriazenes. Common functional groups could be well tolerated, although large electronic effects from alkynes were observed. TBAB-assisted oxidative addition of palladium(0) to aryltriazene instead of in situ formed arylhalide has been proposed to initiate the catalytic cycle.
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Affiliation(s)
- Jun Cao
- School of Chemistry & Molecular Engineering, East China University of Science & Technology, 130 Meilong Rd, Shanghai 200237, China
| | - Wenbin Ding
- School of Chemistry & Molecular Engineering, East China University of Science & Technology, 130 Meilong Rd, Shanghai 200237, China
| | - Gang Zou
- School of Chemistry & Molecular Engineering, East China University of Science & Technology, 130 Meilong Rd, Shanghai 200237, China
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4
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Jain S, Anmol, Sharma R, Karmakar T, Yadav MR. Cu(I)/ N,N-Imine Ligand Catalyzed C(sp 3)-C(sp) Coupling of Alkyl Bromides with Alkynes: Scope and Mechanistic Investigation. Org Lett 2023; 25:5437-5442. [PMID: 37459228 DOI: 10.1021/acs.orglett.3c01735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
We have developed an efficient Cu/N,N-bidentate imine ligand catalytic system for C(sp3)-C(sp) coupling to obtain internal alkynes, di/trisubstituted allenes and strained bridged cyclic lactams in moderate to excellent yields from readily available alkyl(benzyl) bromides in one-pot transformation. Density Functional Theory (DFT) assisted mechanistic study along with control experiments support the involvement of bialkynylated copper species which undergo single electron transfer (SET) with alkyl halides to generate radical intermediate in the reaction. The N,N-bidentate imine ligand plays a vital role in stabilization of intermediate copper complex and facilitates the product formation.
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Affiliation(s)
- Swati Jain
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Anmol
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Ruchi Sharma
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Tarak Karmakar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - M Ramu Yadav
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
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5
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Zeng X, Wang C, Yan W, Rong J, Song Y, Xiao Z, Cai A, Liang SH, Liu W. Aryl Radical Enabled, Copper-Catalyzed Sonogashira-Type Cross-Coupling of Alkynes with Alkyl Iodides. ACS Catal 2023; 13:2761-2770. [PMID: 37800120 PMCID: PMC10552849 DOI: 10.1021/acscatal.2c05901] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Despite the success of Sonogashira coupling for the synthesis of arylalkynes and conjugated enynes, the engagement of unactivated alkyl halides in such reactions remains historically challenging. We report herein a strategy that merges Cu-catalyzed alkyne transfer with the aryl radical activation of carbon-halide bonds to enable a general approach for the coupling of alkyl iodides with terminal alkynes. This unprecedented Sonogashira-type cross-coupling reaction tolerates a broad range of functional groups and has been applied to the late-stage cross-coupling of densely functionalized pharmaceutical agents as well as the synthesis of positron emission tomography tracers.
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Affiliation(s)
- Xiaojun Zeng
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Chao Wang
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Wenhao Yan
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Jian Rong
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, Georgia 30322, United States
| | - Yanshan Song
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Zhiwei Xiao
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, Georgia 30322, United States
| | - Aijie Cai
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Steven H Liang
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, Georgia 30322, United States
| | - Wei Liu
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
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6
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Lokolkar MS, Kolekar YA, Jagtap PA, Bhanage BM. Cu-Catalyzed C-C Coupling Reactions. TOP ORGANOMETAL CHEM 2023. [DOI: 10.1007/3418_2022_81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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7
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Mal S, Sarkar S, Jana M. Metal-free C(sp3)-H Bromination: Synthesis of Phenacyl bromide and Benzyl bromide derivatives. J CHEM SCI 2022. [DOI: 10.1007/s12039-022-02107-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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8
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Zhai L, Yang Z, Man Q, Yang M, Ren Y, Wang L, Li H, She X. Organoborane-catalyzed selective 1,2-reduction of alkynones with hydride transfer: synthesis of benzyl alkynes. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Mondal A, Visser P, Doze AM, Buter J, Feringa BL. Pd-catalyzed sp-sp 3 cross-coupling of benzyl bromides using lithium acetylides. Chem Commun (Camb) 2021; 57:7529-7532. [PMID: 34236070 PMCID: PMC8320736 DOI: 10.1039/d1cc02762j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Organolithium-based cross-coupling reactions have emerged as an indispensable method to construct C–C bonds. These transformations have proven particularly useful for the direct and fast coupling of various organolithium reagents (sp, sp2, and sp3) with aromatic (pseudo) halides (sp2). Here we present an efficient method for the cross-coupling of benzyl bromides (sp3) with lithium acetylides (sp). The reaction proceeds within 10 min at room temperature and can be performed in the presence of organolithium-sensitive functional groups such as esters, nitriles, amides and boronic esters. The potential application of the methodology is demonstrated in the preparation of key intermediates used in pharmaceuticals, chemical biology and natural products. A fast and highly selective method for cross-coupling of benzyl bromides with lithium acetylides, proceeding at room temperature in 10 min while tolerating various organolithium-sensitive functional groups, is presented.![]()
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Affiliation(s)
- Anirban Mondal
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands.
| | - Paco Visser
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands.
| | - Anna M Doze
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands.
| | - Jeffrey Buter
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands.
| | - Ben L Feringa
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands.
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10
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A Copper‐Catalyzed Sonogashira Coupling Reaction of Diverse Activated Alkyl Halides with Terminal Alkynes Under Ambient Conditions. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000189] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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11
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He J, Yang K, Zhao J, Cao S. LiHMDS-Promoted Palladium-Catalyzed Sonogashira Cross-Coupling of Aryl Fluorides with Terminal Alkynes. Org Lett 2019; 21:9714-9718. [DOI: 10.1021/acs.orglett.9b03815] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Jingjing He
- School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, China
| | - Kang Yang
- School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, China
| | - Jianhong Zhao
- School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, China
| | - Song Cao
- School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, China
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12
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Xu S, Zhang Z, Han C, Hu W, Xiao T, Yuan Y, Zhao J. Palladium-Catalyzed Coupling of Terminal Alkynes with Benzyl Ammonium Salts. J Org Chem 2019; 84:12192-12197. [DOI: 10.1021/acs.joc.9b01877] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Silin Xu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People’s Republic of China
| | - Zhenming Zhang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People’s Republic of China
| | - Chunyu Han
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People’s Republic of China
| | - Wenkai Hu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People’s Republic of China
| | - Tiwen Xiao
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People’s Republic of China
| | - Yanan Yuan
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People’s Republic of China
| | - Junfeng Zhao
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People’s Republic of China
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