1
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Hu Y, Zou Y, Yang H, Ji H, Jin Y, Zhang Z, Liu Y, Zhang W. Precise Synthesis of Chiral Z-Allylamides by Cobalt-Catalyzed Asymmetric Sequential Hydrogenations. Angew Chem Int Ed Engl 2023; 62:e202217871. [PMID: 36753391 DOI: 10.1002/anie.202217871] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/09/2023]
Abstract
Asymmetric sequential hydrogenations of conjugated enynes have been developed using a Ph-BPE-CoI catalyst for the precise synthesis of chiral Z-allylamides in high activity (up to 1000 substrate/catalyst (S/C)) and with excellent enantioselectivity (up to >99 % enantiomeric excess (ee)). Mechanism experiments and theoretical calculations support a cationic CoI /CoIII redox catalytic cycle. The catalytic activity difference between cobalt complexes of Ph-BPE and QuinoxP* was explained by the process decomposition of rate-determining step in the second hydrogenation.
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Affiliation(s)
- Yanhua Hu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yashi Zou
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Huiwen Yang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Haotian Ji
- Frontier Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yue Jin
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Zhenfeng Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yangang Liu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.,Frontier Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.,Frontier Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
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2
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Jin Y, Zou Y, Hu Y, Han Y, Zhang Z, Zhang W. Azole-Directed Cobalt-Catalyzed Asymmetric Hydrogenation of Alkenes. Chemistry 2022; 28:e202201517. [PMID: 35622378 DOI: 10.1002/chem.202201517] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Indexed: 12/11/2022]
Abstract
The azole-directed cobalt-catalyzed asymmetric hydrogenation of alkenes has been developed with high efficiency. With this approach, chiral pyrazole compounds were obtained in quantitative yields and excellent enantioselectivities (up to 99 % ee) under mild conditions, and the hydrogenation was conducted on a gram scale with up to 2000 TON. Several useful applications were demonstrated including the convenient introduction of β-chirality to a drug intermediate containing an azole ring.
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Affiliation(s)
- Yue Jin
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Yashi Zou
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Yanhua Hu
- Frontier Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Yunxi Han
- Frontier Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Zhenfeng Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China.,Frontier Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
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3
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Kumar Roy T, Sreedharan R, Ghosh P, Gandhi T, Maiti D. Ene-Reductase: A Multifaceted Biocatalyst in Organic Synthesis. Chemistry 2022; 28:e202103949. [PMID: 35133702 DOI: 10.1002/chem.202103949] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Indexed: 12/13/2022]
Abstract
Biocatalysis integrate microbiologists, enzymologists, and organic chemists to access the repertoire of pharmaceutical and agrochemicals with high chemoselectivity, regioselectivity, and enantioselectivity. The saturation of carbon-carbon double bonds by biocatalysts challenges the conventional chemical methodology as it bypasses the use of precious metals (in combination with chiral ligands and molecular hydrogen) or organocatalysts. In this line, Ene-reductases (ERs) from the Old Yellow Enzymes (OYEs) family are found to be a prominent asymmetric biocatalyst that is increasingly used in academia and industries towards unparalleled stereoselective trans-hydrogenations of activated C=C bonds. ERs gained prominence as they were used as individual catalysts, multi-enzyme cascades, and in conjugation with chemical reagents (chemoenzymatic approach). Besides, ERs' participation in the photoelectrochemical and radical-mediated process helps to unlock many scopes outside traditional biocatalysis. These up-and-coming methodologies entice the enzymologists and chemists to explore, expand and harness the chemistries displayed by ERs for industrial settings. Herein, we reviewed the last five year's exploration of organic transformations using ERs.
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Affiliation(s)
- Triptesh Kumar Roy
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati, India
| | - Ramdas Sreedharan
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India
| | - Pintu Ghosh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, India
| | - Thirumanavelan Gandhi
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India
| | - Debabrata Maiti
- Chemistry Department and Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Powai, Maharashtra 400076, India
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4
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Oroz‐Guinea I, Winkler CK, Glueck SM, Ditrich K, Weingarten M, Breuer M, Schachtschabel D, Kroutil W. Ene‐Reductase Catalyzed Regio‐ and Stereoselective 1,4‐Mono‐Reduction of Pseudoionone to Geranylacetone. ChemCatChem 2021. [DOI: 10.1002/cctc.202101557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Isabel Oroz‐Guinea
- Austrian Centre of Industrial Biotechnology c/o University of Graz Heinrichstrasse 28 8010 Graz Austria
- Institute of Chemistry University of Graz NAWI Graz Heinrichstrasse 28 8010 Graz Austria
| | - Christoph K. Winkler
- Institute of Chemistry University of Graz NAWI Graz Heinrichstrasse 28 8010 Graz Austria
| | - Silvia M. Glueck
- Austrian Centre of Industrial Biotechnology c/o University of Graz Heinrichstrasse 28 8010 Graz Austria
| | - Klaus Ditrich
- BASF SE Industrial Biotechnology Carl-Bosch-Strasse 38 67056 Ludwigshafen Germany
| | - Melanie Weingarten
- BASF SE Industrial Biotechnology Carl-Bosch-Strasse 38 67056 Ludwigshafen Germany
| | - Michael Breuer
- BASF SE Industrial Biotechnology Carl-Bosch-Strasse 38 67056 Ludwigshafen Germany
| | | | - Wolfgang Kroutil
- Austrian Centre of Industrial Biotechnology c/o University of Graz Heinrichstrasse 28 8010 Graz Austria
- Institute of Chemistry University of Graz NAWI Graz Heinrichstrasse 28 8010 Graz Austria
- BioTechMed Graz Heinrichstrasse 28 8010 Graz Austria
- Field of Excellence BioHealth University of Graz Heinrichstrasse 28 8010 Graz Austria
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5
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Hu Y, Zhang Z, Liu Y, Zhang W. Cobalt-Catalyzed Chemo- and Enantioselective Hydrogenation of Conjugated Enynes. Angew Chem Int Ed Engl 2021; 60:16989-16993. [PMID: 34062038 DOI: 10.1002/anie.202106566] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Indexed: 12/11/2022]
Abstract
Asymmetric hydrogenation is one of the most powerful methods for the preparation of single enantiomer compounds. However, the chemo- and enantioselective hydrogenation of the relatively inert unsaturated group in substrates possessing multiple unsaturated bonds remains a challenge. We herein report a protocol for the highly chemo- and enantioselective hydrogenation of conjugated enynes while keeping the alkynyl bond intact. Mechanism studies indicate that the accompanying Zn2+ generated from zinc reduction of the CoII complex plays a critical role to initiate a plausible CoI /CoIII catalytic cycle. This approach allows for the highly efficient generation of chiral propargylamines (up to 99.9 % ee and 2000 S/C) and further useful chemical transformations.
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Affiliation(s)
- Yanhua Hu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontier Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Zhenfeng Zhang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yangang Liu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontier Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.,School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontier Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.,School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
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6
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Hu Y, Zhang Z, Liu Y, Zhang W. Cobalt‐Catalyzed Chemo‐ and Enantioselective Hydrogenation of Conjugated Enynes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106566] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yanhua Hu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Zhenfeng Zhang
- School of Pharmacy Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Yangang Liu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
- School of Pharmacy Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontier Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
- School of Pharmacy Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
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7
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Gandomkar S, Rocha R, Sorgenfrei FA, Montero LM, Fuchs M, Kroutil W. PQQ-dependent Dehydrogenase Enables One-pot Bi-enzymatic Enantio-convergent Biocatalytic Amination of Racemic sec-Allylic Alcohols. ChemCatChem 2021; 13:1290-1293. [PMID: 33777250 PMCID: PMC7986696 DOI: 10.1002/cctc.202001707] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/20/2020] [Indexed: 12/28/2022]
Abstract
The asymmetric amination of secondary racemic allylic alcohols bears several challenges like the reactivity of the bi-functional substrate/product as well as of the α,β-unsaturated ketone intermediate in an oxidation-reductive amination sequence. Heading for a biocatalytic amination cascade with a minimal number of enzymes, an oxidation step was implemented relying on a single PQQ-dependent dehydrogenase with low enantioselectivity. This enzyme allowed the oxidation of both enantiomers at the expense of iron(III) as oxidant. The stereoselective amination of the α,β-unsaturated ketone intermediate was achieved with transaminases using 1-phenylethylamine as formal reducing agent as well as nitrogen source. Choosing an appropriate transaminase, either the (R)- or (S)-enantiomer was obtained in optically pure form (>98 % ee). The enantio-convergent amination of the racemic allylic alcohols to one single allylic amine enantiomer was achieved in one pot in a sequential cascade.
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Affiliation(s)
| | - Raquel Rocha
- Institute of ChemistryUniversity of Graz, NAWI Graz8010GrazAustria
| | - Frieda A. Sorgenfrei
- Institute of ChemistryUniversity of Graz, NAWI Graz8010GrazAustria
- Austrian Centre of Industrial Biotechnology c/oUniversity of Graz8010GrazAustria
| | | | - Michael Fuchs
- Institute of ChemistryUniversity of Graz, NAWI Graz8010GrazAustria
| | - Wolfgang Kroutil
- Institute of ChemistryUniversity of Graz, NAWI Graz8010GrazAustria
- Field of Excellence BioHealthUniversity of Graz8010GrazAustria
- BioTechMed Graz8010GrazAustria
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8
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Albarrán-Velo J, Lavandera I, Gotor-Fernández V. Sequential Two-Step Stereoselective Amination of Allylic Alcohols through the Combination of Laccases and Amine Transaminases. Chembiochem 2019; 21:200-211. [PMID: 31513330 DOI: 10.1002/cbic.201900473] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Indexed: 01/20/2023]
Abstract
A sequential two-step chemoenzymatic methodology for the stereoselective synthesis of (3E)-4-(het)arylbut-3-en-2-amines in a highly selective manner and under mild reaction conditions is described. The approach consists of oxidation of the corresponding racemic alcohol precursors by the use of a catalytic system made up of the laccase from Trametes versicolor and the oxy-radical TEMPO, followed by the asymmetric reductive bio-transamination of the corresponding ketone intermediates. Optimisation of the oxidation reaction, exhaustive amine transaminase screening for the bio-transaminations and the compatibility of the two enzymatic reactions were studied in depth in search of a design of a compatible sequential cascade. This synthetic strategy was successful and the combinations of enzymes displayed a broad substrate scope, with 16 chiral amines being obtained in moderate to good isolated yields (29-75 %) and with excellent enantiomeric excess values (94 to >99 %). Interestingly, both amine enantiomers can be achieved, depending on the selectivity of the amine transaminase employed in the system.
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Affiliation(s)
- Jesús Albarrán-Velo
- Organic and Inorganic Chemistry Department, University of Oviedo, Avenida Julián Clavería 8, 33006, Oviedo, Spain
| | - Iván Lavandera
- Organic and Inorganic Chemistry Department, University of Oviedo, Avenida Julián Clavería 8, 33006, Oviedo, Spain
| | - Vicente Gotor-Fernández
- Organic and Inorganic Chemistry Department, University of Oviedo, Avenida Julián Clavería 8, 33006, Oviedo, Spain
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9
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Long J, Shi L, Li X, Lv H, Zhang X. Rhodium-Catalyzed Highly Regio- and Enantioselective Hydrogenation of Tetrasubstituted Allenyl Sulfones: An Efficient Access to Chiral Allylic Sulfones. Angew Chem Int Ed Engl 2018; 57:13248-13251. [PMID: 30125445 DOI: 10.1002/anie.201804891] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 07/26/2018] [Indexed: 12/31/2022]
Abstract
A highly regio- and enantioselective hydrogenation of challenging tetrasubstituted allenyl sulfones has been developed, affording chiral allylic sulfones in good yields with excellent regio- and enantioselectivities (up to 99 % yield and 99 % ee). This method provides an efficient and concise route to chiral allylic sulfones, thus offering an atom-economic process with a wide range of potential applications in organic synthesis and medicinal chemistry.
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Affiliation(s)
- Jiao Long
- Key Laboratory of Biomedical Polymers of Ministry of Education &, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China
| | - Liyang Shi
- Key Laboratory of Biomedical Polymers of Ministry of Education &, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China
| | - Xiong Li
- Key Laboratory of Biomedical Polymers of Ministry of Education &, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China
| | - Hui Lv
- Key Laboratory of Biomedical Polymers of Ministry of Education &, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China.,Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China
| | - Xumu Zhang
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
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10
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Long J, Shi L, Li X, Lv H, Zhang X. Rhodium‐Catalyzed Highly Regio‐ and Enantioselective Hydrogenation of Tetrasubstituted Allenyl Sulfones: An Efficient Access to Chiral Allylic Sulfones. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804891] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jiao Long
- Key Laboratory of Biomedical Polymers of Ministry of Education &, College of Chemistry and Molecular SciencesWuhan University Wuhan Hubei 430072 P. R. China
| | - Liyang Shi
- Key Laboratory of Biomedical Polymers of Ministry of Education &, College of Chemistry and Molecular SciencesWuhan University Wuhan Hubei 430072 P. R. China
| | - Xiong Li
- Key Laboratory of Biomedical Polymers of Ministry of Education &, College of Chemistry and Molecular SciencesWuhan University Wuhan Hubei 430072 P. R. China
| | - Hui Lv
- Key Laboratory of Biomedical Polymers of Ministry of Education &, College of Chemistry and Molecular SciencesWuhan University Wuhan Hubei 430072 P. R. China
- Engineering Research Center of Organosilicon Compounds & MaterialsMinistry of EducationCollege of Chemistry and Molecular SciencesWuhan University Wuhan Hubei 430072 P. R. China
| | - Xumu Zhang
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen Guangdong 518055 P. R. China
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11
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Hu Q, Hu Y, Liu Y, Zhang Z, Liu Y, Zhang W. Rh-Catalyzed Chemo- and Enantioselective Hydrogenation of Allylic Hydrazones. Chemistry 2016; 23:1040-1043. [DOI: 10.1002/chem.201605579] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Indexed: 12/23/2022]
Affiliation(s)
- Qiupeng Hu
- School of Pharmacy; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Yanhua Hu
- School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Yang Liu
- School of Pharmacy; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Zhenfeng Zhang
- School of Pharmacy; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Yangang Liu
- School of Pharmacy; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Wanbin Zhang
- School of Pharmacy; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P. R. China
- School of Chemistry and Chemical Engineering; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P. R. China
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12
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Yang P, Lim LH, Chuanprasit P, Hirao H, Zhou JS. Nickel-Catalyzed Enantioselective Reductive Amination of Ketones with Both Arylamines and Benzhydrazide. Angew Chem Int Ed Engl 2016; 55:12083-7. [DOI: 10.1002/anie.201606821] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Indexed: 01/01/2023]
Affiliation(s)
- Peng Yang
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Li Hui Lim
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Pratanphorn Chuanprasit
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Hajime Hirao
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Jianrong Steve Zhou
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
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13
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Yang P, Lim LH, Chuanprasit P, Hirao H, Zhou JS. Nickel-Catalyzed Enantioselective Reductive Amination of Ketones with Both Arylamines and Benzhydrazide. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606821] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Peng Yang
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Li Hui Lim
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Pratanphorn Chuanprasit
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Hajime Hirao
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Jianrong Steve Zhou
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
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14
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Bauer JM, Frey W, Peters R. Dual Palladium(II)/Tertiary Amine Catalysis for Asymmetric Regioselective Rearrangements of Allylic Carbamates. Chemistry 2016; 22:5767-77. [PMID: 26990446 DOI: 10.1002/chem.201600138] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Indexed: 11/10/2022]
Abstract
The streamlined catalytic access to enantiopure allylic amines as valuable precursors towards chiral β- and γ-aminoalcohols as well as α- and β-aminoacids is desirable for industrial purposes. In this article an enantioselective method is described that transforms achiral allylic alcohols and N-tosylisocyanate in a single step into highly enantioenriched N-tosyl protected allylic amines via an allylic carbamate intermediate. The latter is likely to undergo a cyclisation-induced [3,3]-rearrangement catalysed by a planar chiral pentaphenylferrocene palladacycle in cooperation with a tertiary amine base. The otherwise often indispensable activation of palladacycle catalysts by a silver salt is not required in the present case and there is also no need for an inert gas atmosphere. To further improve the synthetic value, the rearrangement was used to form dimethylaminosulfonyl-protected allylic amines, which can be deprotected under non-reductive conditions.
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Affiliation(s)
- Johannes Moritz Bauer
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Wolfgang Frey
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - René Peters
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany.
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15
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Xu H, Yang P, Chuanprasit P, Hirao H, Zhou JS. Nickel-Catalyzed Asymmetric Transfer Hydrogenation of Hydrazones and Other Ketimines. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501018] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Xu H, Yang P, Chuanprasit P, Hirao H, Zhou JS. Nickel-Catalyzed Asymmetric Transfer Hydrogenation of Hydrazones and Other Ketimines. Angew Chem Int Ed Engl 2015; 54:5112-6. [DOI: 10.1002/anie.201501018] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Indexed: 12/20/2022]
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17
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Gao M, Meng JJ, Lv H, Zhang X. Highly Regio- and Enantioselective Synthesis of γ,δ-Unsaturated Amido Esters by Catalytic Hydrogenation of Conjugated Enamides. Angew Chem Int Ed Engl 2014; 54:1885-7. [DOI: 10.1002/anie.201410213] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Indexed: 11/06/2022]
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18
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Highly Regio- and Enantioselective Synthesis of γ,δ-Unsaturated Amido Esters by Catalytic Hydrogenation of Conjugated Enamides. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201410213] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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19
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Han J, Jeon M, Pak HK, Rhee YH, Park J. Exploiting the Nucleophilicity of NH Imines: Synthesis of Enamides from Alkyl Azides and Acid Anhydrides. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400584] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Chen J, Liu D, Butt N, Li C, Fan D, Liu Y, Zhang W. Palladium-Catalyzed Asymmetric Hydrogenation of α-Acyloxy-1-arylethanones. Angew Chem Int Ed Engl 2013; 52:11632-6. [DOI: 10.1002/anie.201306231] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Indexed: 11/07/2022]
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Chen J, Liu D, Butt N, Li C, Fan D, Liu Y, Zhang W. Palladium-Catalyzed Asymmetric Hydrogenation of α-Acyloxy-1-arylethanones. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306231] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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