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Chernyshev VM, Khazipov OV, Eremin DB, Denisova EA, Ananikov VP. Formation and stabilization of nanosized Pd particles in catalytic systems: Ionic nitrogen compounds as catalytic promoters and stabilizers of nanoparticles. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213860] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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2
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Park BY, Lim T, Han MS. A simple and efficient in situ generated copper nanocatalyst for stereoselective semihydrogenation of alkynes. Chem Commun (Camb) 2021; 57:6891-6894. [PMID: 34151329 DOI: 10.1039/d1cc02685b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Development of a simple, effective, and practical method for (Z)-selective semihydrogenation of alkynes has been considered necessary for easy-to-access applications at organic laboratory scales. Herein, (Z)-selective semihydrogenation of alkynes was achieved using a copper nanocatalyst which was generated in situ simply by adding ammonia borane to an ethanol solution of copper sulfate. Different types of alkynes including aryl-aryl, aryl-alkyl, and aliphatic alkynes were selectively reduced to (Z)-alkenes affording up to 99% isolated yield. The semihydrogenation of terminal alkynes to alkenes and gram-scale applications were also reported. In addition to eliminating catalyst preparation, the proposed approach is simple and practical and serves as a suitable alternative method to the conventional Lindlar catalyst.
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Affiliation(s)
- Byoung Yong Park
- Department of Chemistry, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea.
| | - Taeho Lim
- Department of Chemistry, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea.
| | - Min Su Han
- Department of Chemistry, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea.
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3
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Abstract
The bis-NHC–Ag/Pd(OAc)2 catalytic system (NHC = N-heterocyclic carbene), a combination of bis-NHC–Ag complex and Pd(OAc)2, was found to be a smart catalyst in the Pd-catalyzed transfer hydrogenation of various functionalized arenes and internal/terminal alkynes. The catalytic system demonstrated high efficiency for the reduction of a wide range of various functional groups such as carbonyls, alkynes, olefins, and nitro groups in good to excellent yields and high chemoselectivity for the reduction of functional groups. In addition, the protocol was successfully exploited to stereoselectivity for the transformation of alkynes to alkenes in aqueous media under air. This methodology successfully provided an alternative useful protocol for reducing various functional groups and a simple operational protocol for transfer hydrogenation.
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4
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Wu Y, Liu C, Wang C, Lu S, Zhang B. Selective Transfer Semihydrogenation of Alkynes with H
2
O (D
2
O) as the H (D) Source over a Pd‐P Cathode. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009757] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Yongmeng Wu
- Institute of Molecular Plus Department of Chemistry School of Science Tianjin University Tianjin 300072 China
| | - Cuibo Liu
- Institute of Molecular Plus Department of Chemistry School of Science Tianjin University Tianjin 300072 China
| | - Changhong Wang
- Institute of Molecular Plus Department of Chemistry School of Science Tianjin University Tianjin 300072 China
| | - Siyu Lu
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450000 China
| | - Bin Zhang
- Institute of Molecular Plus Department of Chemistry School of Science Tianjin University Tianjin 300072 China
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences Frontiers Science Center for Synthetic Biology (Ministry of, Education) Tianjin University Tianjin 300072 China
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5
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Wu Y, Liu C, Wang C, Lu S, Zhang B. Selective Transfer Semihydrogenation of Alkynes with H
2
O (D
2
O) as the H (D) Source over a Pd‐P Cathode. Angew Chem Int Ed Engl 2020; 59:21170-21175. [DOI: 10.1002/anie.202009757] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Indexed: 12/25/2022]
Affiliation(s)
- Yongmeng Wu
- Institute of Molecular Plus Department of Chemistry School of Science Tianjin University Tianjin 300072 China
| | - Cuibo Liu
- Institute of Molecular Plus Department of Chemistry School of Science Tianjin University Tianjin 300072 China
| | - Changhong Wang
- Institute of Molecular Plus Department of Chemistry School of Science Tianjin University Tianjin 300072 China
| | - Siyu Lu
- Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450000 China
| | - Bin Zhang
- Institute of Molecular Plus Department of Chemistry School of Science Tianjin University Tianjin 300072 China
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences Frontiers Science Center for Synthetic Biology (Ministry of, Education) Tianjin University Tianjin 300072 China
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Grams RJ, Garcia CJ, Szwetkowski C, Santos WL. Catalytic, Transition-Metal-Free Semireduction of Propiolamide Derivatives: Scope and Mechanistic Investigation. Org Lett 2020; 22:7013-7018. [PMID: 32846095 PMCID: PMC10998456 DOI: 10.1021/acs.orglett.0c02567] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a transition-metal-free trans-selective semireduction of alkynes with pinacolborane and catalytic potassium tert-butoxide. A variety of 3-substituted primary and secondary propiolamides, including an analog of FK866, a potent nicotinamide mononucleotide adenyltransferase (NMNAT) inhibitor, are reduced to the corresponding (E)-3-substituted acrylamide derivatives in up to 99% yield with >99:1 E/Z selectivity. Mechanistic studies suggest that an activated Lewis acid-base complex transfers a hydride to the α-carbon followed by rapid protonation in a trans fashion.
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Affiliation(s)
- R Justin Grams
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Christopher J Garcia
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Connor Szwetkowski
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Webster L Santos
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
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7
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Zhao CQ, Chen YG, Qiu H, Wei L, Fang P, Mei TS. Water as a Hydrogenating Agent: Stereodivergent Pd-Catalyzed Semihydrogenation of Alkynes. Org Lett 2019; 21:1412-1416. [DOI: 10.1021/acs.orglett.9b00148] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Chuan-Qi Zhao
- 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 Lu, Shanghai 200032, China
| | - Yue-Gang 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 Lu, Shanghai 200032, China
| | - Hui Qiu
- 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 Lu, Shanghai 200032, China
| | - Lei Wei
- 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 Lu, Shanghai 200032, China
| | - Ping Fang
- 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 Lu, Shanghai 200032, China
| | - Tian-Sheng Mei
- 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 Lu, Shanghai 200032, China
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8
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Li K, Khan R, Zhang X, Gao Y, Zhou Y, Tan H, Chen J, Fan B. Cobalt catalyzed stereodivergent semi-hydrogenation of alkynes using H2O as the hydrogen source. Chem Commun (Camb) 2019; 55:5663-5666. [DOI: 10.1039/c9cc01970g] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cobalt-catalyzed stereodivergent semi-hydrogenation of internal alkynes to alkenes is developed.
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Affiliation(s)
- Kangkui Li
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine
- Yunnan Minzu University
- Kunming
- China
| | - Ruhima Khan
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine
- Yunnan Minzu University
- Kunming
- China
| | - Xuexin Zhang
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine
- Yunnan Minzu University
- Kunming
- China
| | - Yang Gao
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine
- Yunnan Minzu University
- Kunming
- China
| | - Yongyun Zhou
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine
- Yunnan Minzu University
- Kunming
- China
| | - Heng Tan
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine
- Yunnan Minzu University
- Kunming
- China
| | - Jingchao Chen
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine
- Yunnan Minzu University
- Kunming
- China
| | - Baomin Fan
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine
- Yunnan Minzu University
- Kunming
- China
- Key Laboratory of Chemistry in Ethnic Medicinal Resources
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