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Gao Y, Wang LY, Zhang T, Yang BM, Zhao Y. Atroposelective Synthesis of 1,1'-Bipyrroles Bearing a Chiral N-N Axis: Chiral Phosphoric Acid Catalysis with Lewis Acid Induced Enantiodivergence. Angew Chem Int Ed Engl 2022; 61:e202200371. [PMID: 35174596 DOI: 10.1002/anie.202200371] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Indexed: 12/26/2022]
Abstract
We present herein a highly efficient atroposelective synthesis of axially chiral 1,1'-bipyrroles bearing an N-N linkage from simple hydrazine and 1,4-diones. Further product derivatizations led to axially chiral bifunctional compounds with high potential in asymmetric catalysis. For this chrial phosphoric acid (CPA)-catalyzed double Paal-Knorr reaction, an intriguing Fe(OTf)3 -induced enantiodivergence was also observed.
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Affiliation(s)
- Yaru Gao
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China.,Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Republic of Singapore
| | - Luo-Yu Wang
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China.,Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Republic of Singapore
| | - Tao Zhang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Republic of Singapore
| | - Bin-Miao Yang
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
| | - Yu Zhao
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China.,Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Republic of Singapore
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Gao Y, Wang L, Zhang T, Yang B, Zhao Y. Atroposelective Synthesis of 1,1′‐Bipyrroles Bearing a Chiral N−N Axis: Chiral Phosphoric Acid Catalysis with Lewis Acid Induced Enantiodivergence. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yaru Gao
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City, Fuzhou 350207 China
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Republic of Singapore
| | - Luo‐Yu Wang
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City, Fuzhou 350207 China
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Republic of Singapore
| | - Tao Zhang
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Republic of Singapore
| | - Bin‐Miao Yang
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City, Fuzhou 350207 China
| | - Yu Zhao
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City, Fuzhou 350207 China
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Republic of Singapore
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