A new catalyst system for the enantioselective bromine-induced semipinacol rearrangement of cyclic allylic alcohols is described. Using the commercially available (DHQD)2Pyr catalyst the products containing an all-carbon quaternary chiral centre can be obtained in good yield and high enantioselectivity. asymmetric catalysis - bromine - electrophilic addition - halogenation - rearrangement
描述了用于对映选择性的
溴诱导的环状芳基醇的半松果醇重排的新催化剂体系。使用可商购的(
DHQD)2 Pyr催化剂,可以高收率和高对映选择性获得含有全碳季手性中心的产物。 不对称催化-
溴-亲电加成-卤化-重排