作者:Manuel Mahlau、Pilar García-García、Benjamin List
DOI:10.1002/chem.201203623
日期:2012.12.14
Lewis acid catalyzed Hosomi–Sakuraireaction of (hetero)aromatic aldehydes and allylsilanes using an easily handled disulfonimide precatalyst (see scheme). The key to the success of this system is to turn the usually undesired silylium ion catalysis into the desired catalytic regime and pair the cation with an enantiopure disulfonimide anion, thereby applying the concept of asymmetric counteranion‐directed