Asymmetric Intramolecular Rauhut–Currier Reaction and Its Desymmetric Version via Double Thiol/Phase-Transfer Catalysis
作者:Ying Jiang、Yang Yang、Qing He、Wei Du、Ying-Chun Chen
DOI:10.1021/acs.joc.0c01293
日期:2020.8.21
intramolecular Rauhut–Currier reaction of linear bis(enones) has been achieved via double activation catalysis of thiols and phase transfer substances, furnishing both enantioenriched cyclohexene and cyclopentene derivatives (up to 95% ee). Furthermore, the desymmetric version of prochiral substrates was developed under similar catalysis, producing the frameworks bearing an additional tertiary or even quaternary
线性双(烯酮)的不对称分子内Rauhut-Currier反应是通过硫醇和相转移物质的双重活化催化实现的,提供了对映体富集的环己烯和环戊烯衍生物(ee高达95%)。此外,前手性底物的不对称形式是在相似的催化作用下开发的,产生的骨架带有一个附加的叔或什至四元立体异构中心,具有中等到极好的非对映和对映选择性(高达95%ee,> 19:1 dr)。