Diastereoselective hydroalkylation of aryl alkenes enabled by Remote hydride transfer
作者:Dhika Aditya Gandamana、Fabien Gagosz、Shunsuke Chiba
DOI:10.1016/j.tet.2020.131272
日期:2020.12
Leveraging of 1,5-hydride shift enabled diastereoselective hydroalkylation of aryl alkenes, allowing for construction of consecutive vicinal stereogenic centers in a single process. The transformation is triggered by electrophilic alkylation of aryl alkenes with in-situ generated carbocations, that is followed by diastereoselective 1,5-hydride shift to the resulting benzylic carbocation through a rigid
利用1,5-氢化物转移可实现芳基烯烃的非对映选择性加氢烷基化,从而允许在单个过程中构建连续的邻近立体异构中心。该转化是通过芳基烯烃的亲电烷基化与原位生成的碳正离子引发的,随后非对映选择性的1,5-氢化物通过刚性的6元环椅状过渡态转变为所得的苄基碳正离子。