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Sk M, Haldar S, Bera S, Banerjee D. Recent advances in the selective semi-hydrogenation of alkyne to ( E)-olefins. Chem Commun (Camb) 2024; 60:1517-1533. [PMID: 38251772 DOI: 10.1039/d3cc05395d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Considering the potential importance and upsurge in demand, the selective semi-hydrogenation of alkynes to (E)-olefins has attracted significant interest. This article highlights the recent advances in newer technologies and important methodologies directed to (E)-olefins from alkynes developed from 2015 to 2023. Notable features summarised include the catalyst or ligand design and control of product selectivity based on precious and nonprecious metal catalysts for semi-hydrogenation to (E)-olefins. Mechanistic studies for various catalytic transformations, including synthetic application to bioactive compounds, are summarised.
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Affiliation(s)
- Motahar Sk
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Shuvojit Haldar
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Sourajit Bera
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Debasis Banerjee
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
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Gutiérrez-Blanco M, Algarra AG, Guillamón E, Fernández-Trujillo MJ, Oliva M, Basallote MG, Llusar R, Safont VS. Spin-Crossing in the ( Z)-Selective Alkyne Semihydrogenation Mechanism Catalyzed by Mo 3S 4 Clusters: A Density Functional Theory Exploration. Inorg Chem 2024; 63:1000-1009. [PMID: 38173271 DOI: 10.1021/acs.inorgchem.3c03057] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Semihydrogenation of internal alkynes catalyzed by the air-stable imidazolyl amino [Mo3S4Cl3(ImNH2)3]+ cluster selectively affords the (Z)-alkene under soft conditions in excellent yields. Experimental results suggest a sulfur-based mechanism with the formation of a dithiolene adduct through interaction of the alkyne with the bridging sulfur atoms. However, computational studies indicate that this mechanism is unable to explain the experimental outcome: mild reaction conditions, excellent selectivity toward the (Z)-isomer, and complete deuteration of the vinylic positions in the presence of CD3OD and CH3OD. An alternative mechanism that explains the experimental results is proposed. The reaction begins with the hydrogenation of two of the Mo3(μ3-S)(μ-S)3 bridging sulfurs to yield a bis(hydrosulfide) intermediate that performs two sequential hydrogen atom transfers (HAT) from the S-H groups to the alkyne. The first HAT occurs with a spin change from singlet to triplet. After the second HAT, the singlet state is recovered. Although the dithiolene adduct is more stable than the hydrosulfide species, the large energy required for the subsequent H2 addition makes the system evolve via the second alternative pathway to selectively render the (Z)-alkene with a lower overall activation barrier.
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Affiliation(s)
- María Gutiérrez-Blanco
- Departament de Química Física i Analítica, Universitat Jaume I, Av. Sos Baynat s/n, Castelló 12071, Spain
| | - Andrés G Algarra
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Instituto de Biomoléculas (INBIO), Facultad de Ciencias, Universidad de Cádiz, Apartado 40, Puerto Real, Cádiz 11510, Spain
| | - Eva Guillamón
- Departament de Química Física i Analítica, Universitat Jaume I, Av. Sos Baynat s/n, Castelló 12071, Spain
| | - M Jesús Fernández-Trujillo
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Instituto de Biomoléculas (INBIO), Facultad de Ciencias, Universidad de Cádiz, Apartado 40, Puerto Real, Cádiz 11510, Spain
| | - Mónica Oliva
- Departament de Química Física i Analítica, Universitat Jaume I, Av. Sos Baynat s/n, Castelló 12071, Spain
| | - Manuel G Basallote
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Instituto de Biomoléculas (INBIO), Facultad de Ciencias, Universidad de Cádiz, Apartado 40, Puerto Real, Cádiz 11510, Spain
| | - Rosa Llusar
- Departament de Química Física i Analítica, Universitat Jaume I, Av. Sos Baynat s/n, Castelló 12071, Spain
| | - Vicent S Safont
- Departament de Química Física i Analítica, Universitat Jaume I, Av. Sos Baynat s/n, Castelló 12071, Spain
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Jiang ZJ, Xu SH, Su Y, Hu E, Han J, Bai JF, Tang B, Chen J, Gao Z. Nickel-catalyzed regioselective hydrogen isotope exchange accelerated by 2-pyridones. Chem Commun (Camb) 2024; 60:384-387. [PMID: 38063024 DOI: 10.1039/d3cc05257e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
A nickel-catalyzed hydrogen isotope exchange has been developed with acetone-d6 as the deuterium source. The reaction showed an improved kinetic feature of H/D exchange under the assistance of 2-pyridones, efficiently affording regioselective labeled aryl and alkyl carboxamides.
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Affiliation(s)
- Zhi-Jiang Jiang
- NingboTech-Cuiying Joint Laboratory of Stable Isotope Technology, School of Biological and Chemical Engineering, NingboTech University, Ningbo, 315100, P. R. China.
| | - Si-Han Xu
- NingboTech-Cuiying Joint Laboratory of Stable Isotope Technology, School of Biological and Chemical Engineering, NingboTech University, Ningbo, 315100, P. R. China.
- School of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Yuhang Su
- NingboTech-Cuiying Joint Laboratory of Stable Isotope Technology, School of Biological and Chemical Engineering, NingboTech University, Ningbo, 315100, P. R. China.
- School of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Erxun Hu
- NingboTech-Cuiying Joint Laboratory of Stable Isotope Technology, School of Biological and Chemical Engineering, NingboTech University, Ningbo, 315100, P. R. China.
| | - Jiawei Han
- NingboTech-Cuiying Joint Laboratory of Stable Isotope Technology, School of Biological and Chemical Engineering, NingboTech University, Ningbo, 315100, P. R. China.
- School of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Jian-Fei Bai
- NingboTech-Cuiying Joint Laboratory of Stable Isotope Technology, School of Biological and Chemical Engineering, NingboTech University, Ningbo, 315100, P. R. China.
| | - Bencan Tang
- Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, Ningbo, P. R. China
| | - Jia Chen
- NingboTech-Cuiying Joint Laboratory of Stable Isotope Technology, School of Biological and Chemical Engineering, NingboTech University, Ningbo, 315100, P. R. China.
- Ningbo Cuiying Chemical Technology Co. Ltd., Ningbo, 315100, P. R. China
| | - Zhanghua Gao
- NingboTech-Cuiying Joint Laboratory of Stable Isotope Technology, School of Biological and Chemical Engineering, NingboTech University, Ningbo, 315100, P. R. China.
- Ningbo Cuiying Chemical Technology Co. Ltd., Ningbo, 315100, P. R. China
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Paixão DB, Soares EGO, Silva CDG, Peglow TJ, Rampon DS, Schneider PH. CS 2/KOH System-Promoted Stereoselective Synthesis of ( E)-Alkenes from Diarylalkynes and a "Hidden" Zinin-Type Reduction of Nitroarenes into Arylamines. J Org Chem 2023. [PMID: 38010206 DOI: 10.1021/acs.joc.3c01949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
In this work, we present the CS2/KOH system as a practical and efficient reductive medium for obtaining (E)-alkenes from alkynes through a highly stereoselective semireduction reaction. This cost-effective system enabled successful semireduction reactions of diverse alkynes using water as a hydrogen source, yielding moderate to excellent yields. The versatility of this protocol is further demonstrated through the synthesis of relevant compounds such as pinosylvin and resveratrol precursors, along with the notable anticancer agent DMU-212. Furthermore, during the reaction scope investigation, we serendipitously disclosed that this reductive system was also able to promote a Zinin-type reaction to reduce nitroarenes into arylamines.
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Affiliation(s)
- Douglas B Paixão
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Eduardo G O Soares
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Caren D G Silva
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Thiago J Peglow
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
| | - Daniel S Rampon
- Laboratório de Polímeros e Catálise (LAPOCA), Departamento de Química, Universidade Federal do Paraná (UFPR), P.O. Box 19061, 81531-990 Curitiba, PR, Brazil
| | - Paulo H Schneider
- Instituto de Química, Departamento de Química Orgânica, Universidade Federal do Rio Grande do Sul (UFRGS), P.O. Box 15003, 91501-970 Porto Alegre, RS, Brazil
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