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Liu Y, Ahmed S, Qin XY, Rouh H, Wu G, Li G, Jiang B. Synthesis of Diastereoenriched α-Aminomethyl Enaminones via a Brønsted Acid-Catalyzed Asymmetric aza-Baylis-Hillman Reaction of Chiral N-Phosphonyl Imines. Chem Asian J 2020; 15:1125-1131. [PMID: 32067345 DOI: 10.1002/asia.201901734] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/30/2020] [Indexed: 01/09/2023]
Abstract
An effective chiral GAP methodology for preparing α-aminomethyl enaminones through a (R)-CSA-catalyzed asymmetric aza-Baylis-Hillman reaction is reported. Excellent yields and high diastereoselectivity could be obtained under mild conditions and convenient GAP techniques. The confirmations of the absolute configuration of N-phosphonyl imine and chiral enaminone by X-ray diffraction provides an explicit explanation of the chirality mechanism for GAP chemistry.
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Affiliation(s)
- Yangxue Liu
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, 79409-1061, USA
| | - Sultan Ahmed
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, 79409-1061, USA
| | - Xiao-Yan Qin
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Hossein Rouh
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, 79409-1061, USA
| | - Guanzhao Wu
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, 79409-1061, USA.,Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering Nanjing University, Nanjing, 210093, China
| | - Guigen Li
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, 79409-1061, USA.,Institute of Chemistry and BioMedical Sciences, School of Chemistry and Chemical Engineering Nanjing University, Nanjing, 210093, China
| | - Bo Jiang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
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Yang B, Zhang CY, Xu J, Zheng DJ, Wang XY, Dai H, Shi YJ, Zhu HL. Group-assisted Purification (GAP) Chemistry/Technology in Synthesizing the Chiral Intermediate of Rivastigmine and Its α-Alkyl Benzylamine Analogues. CHEM LETT 2019. [DOI: 10.1246/cl.190288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Bing Yang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, P. R. China
- Institute of Chemistry and Biomedical Science, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, P. R. China
| | - Chun-Yan Zhang
- Department of Pharmacy, Affiliated Hospital of Nantong University, Nantong 226001, P. R. China
| | - Jing Xu
- Institute of Chemistry and Biomedical Science, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, P. R. China
| | - Da-Jun Zheng
- Institute of Chemistry and Biomedical Science, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, P. R. China
| | - Xiao-Ying Wang
- Institute of Chemistry and Biomedical Science, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, P. R. China
| | - Hong Dai
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, P. R. China
| | - Yu-Jun Shi
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, P. R. China
| | - Hai-Liang Zhu
- Institute of Chemistry and Biomedical Science, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, P. R. China
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Facile one-pot synthesis of novel highly functionalized dihydro-1H-pyrrole derivatives catalyzed by molecular iodine. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.150996] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Pellissier H. Recent developments in the asymmetric organocatalytic Morita−Baylis−Hillman reaction. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.04.008] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Wang L, Zhu G, Tang W, Lu T, Du D. DMAP-promoted in situ activation of bromoacetic acid as a 2-carbon synthon for facile synthesis of pyridines and fused pyridin-2-ones. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.08.062] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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