Asymmetric Bromoaminocyclization and Desymmetrization of Cyclohexa-1,4-dienes through Anion Phase-Transfer Catalysis
Autor: | Yin-Long Li, Bing-Qian Zhang, Xiao-Ying Zhang, Ling He, Wen-Ying Xiao, Jun Deng, Hai-Jiao Long |
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Rok vydání: | 2021 |
Předmět: | |
Zdroj: | Organic Letters. 23:8153-8157 |
ISSN: | 1523-7052 1523-7060 |
Popis: | The catalytic enantioselective desymmetrizing bromoaminocyclization of prochiral cyclohexa-1,4-dienes has been achieved by using chiral anion phase-transfer catalysis, providing a range of enantioenriched cis-3a-arylhydroindoles bearing an all-carbon quaternary stereocenter in good yields (up to 78%) and excellent enantioselectivities (up to 97% ee). Furthermore, the potential application of this methodology to natural product total synthesis was demonstrated by the asymmetric synthesis of (+)-Mesembrane. |
Databáze: | OpenAIRE |
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