提出了阳离子Au I /手性磷酰胺配合物催化的1,6-烯炔的高度对映选择性氧化环丙烷化反应。该新方法可方便地获得具有三个高对映选择性(最高er 98:2)的稠密官能化双环[3.1.0]己烷,该己烷带有三个连续的季和叔立体异构中心。对照实验表明,反应中β-金乙烯基氧基喹啉鎓中间体的喹啉部分在过渡状态下通过过渡辅助作用在促进良好的对映选择性方面起着重要作用。
提出了阳离子Au I /手性磷酰胺配合物催化的1,6-烯炔的高度对映选择性氧化环丙烷化反应。该新方法可方便地获得具有三个高对映选择性(最高er 98:2)的稠密官能化双环[3.1.0]己烷,该己烷带有三个连续的季和叔立体异构中心。对照实验表明,反应中β-金乙烯基氧基喹啉鎓中间体的喹啉部分在过渡状态下通过过渡辅助作用在促进良好的对映选择性方面起着重要作用。
A general intermolecular reductive Heckreaction of organohalides with both terminal and internal unactivated aliphatic alkenes has been first realized in high yield with complete anti-Markovnikov selectivity. The challenging vinyl bromides, aryl chlorides, and polysubstituted internal alkenes were first applied. More than 100 remote carbofunctionalized alkyl carboxylic acid derivatives were rapidly
process using earth-abundant and biocompatible FeCl3 as a chlorine source under extraordinarily mild reaction conditions. The protocol is easy to operate with notable features such as excellent chemoselectivity, remarkable efficiency, a broad substrate scope, and good functional group tolerance. Importantly, the synthetic utility is highlighted by scaled-up reactions, late-stage derivatizations of products