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Continuous hydrogenation of nitriles to primary amines with high selectivity in flow. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2023.118460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Porphyrin-MOF-derived carbon-encapsulated copper as a selective and leaching resistant catalyst for the hydrogenation of nitriles. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Mason DJ, Timofeyenko YG, Jagadish B, Mash EA. Palladium-catalyzed hydrogenations in dichloromethane. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2115928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- David J. Mason
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, USA
| | - Yegor G. Timofeyenko
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, USA
| | | | - Eugene A. Mash
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, USA
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Wang H, Lin Y, Lu J. Ultra-thin nickel oxide overcoating of noble metal catalysts for directing selective hydrogenation of nitriles to secondary amines. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Kim K, Kang DW, Yun CY, Choi Y, Lee JW. Fundamental reaction kinetics of high-pressure reductive amination of polyalkylene glycol. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.11.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yamada T, Park K, Furugen C, Jiang J, Shimizu E, Ito N, Sajiki H. Highly Selective Hydrogenative Conversion of Nitriles into Tertiary, Secondary, and Primary Amines under Flow Reaction Conditions. CHEMSUSCHEM 2022; 15:e202102138. [PMID: 34779573 DOI: 10.1002/cssc.202102138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/12/2021] [Indexed: 06/13/2023]
Abstract
Flow reaction methods have been developed to selectively synthesize tertiary, secondary, and primary amines depending on heterogeneous platinum-group metal species under catalytic hydrogenation conditions using nitriles as starting materials. A 10 % Pd/C-packed catalyst cartridge affords symmetrically substituted tertiary amines in good to excellent yields. A 10 % Rh/C-packed catalyst cartridge enables the divergent synthesis of secondary and primary amines, with either cyclohexane or acetic acid as a solvent, respectively. Reaction parameters, such as the metal catalyst, solvent, and reaction temperature, and continuous-flow conditions, such as flow direction and second support of the catalyst in a catalyst cartridge, are quite important for controlling the reaction between the hydrogenation of nitriles and nucleophilic attack of in situ-generated amines to imine intermediates. A wide variety of aliphatic and aromatic nitriles could be highly selectively transformed into the corresponding tertiary, secondary, and primary amines by simply changing the metal species of the catalyst or flow parameters. Furthermore, the selective continuous-flow methodologies are applied over at least 72 h to afford three different types of amines in 80-99 % yield without decrease in catalytic activities.
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Affiliation(s)
- Tsuyoshi Yamada
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 5011196, Japan
| | - Kwihwan Park
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 5011196, Japan
| | - Chikara Furugen
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 5011196, Japan
| | - Jing Jiang
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 5011196, Japan
| | - Eisho Shimizu
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 5011196, Japan
| | - Naoya Ito
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 5011196, Japan
| | - Hironao Sajiki
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 5011196, Japan
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Lévay K, Madarász J, Hegedűs L. Tuning the chemoselectivity of the Pd-catalysed hydrogenation of pyridinecarbonitriles: an efficient and simple method for preparing pyridyl- or piperidylmethylamines. Catal Sci Technol 2022. [DOI: 10.1039/d1cy02295d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Differentiation between the products can be fine-tuned by simply adjusting the amount of acidic additive.
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Affiliation(s)
- Krisztina Lévay
- Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary
| | - János Madarász
- Department of Inorganic and Analytical Chemistry, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary
| | - László Hegedűs
- Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary
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