Transition Metal Catalyzed, Regioselective <i>B</i>
(4)-Halogenation and <i>B</i>
(4,5)-Diiodination of Cage B−H Bonds in <i>o</i>
-Carboranes
作者:Hairong Lyu、Yangjian Quan、Zuowei Xie
DOI:10.1002/chem.201703006
日期:2017.10.20
Access granted: Transition metal catalyzed, regioselective cage B(4)−H iodination, bromination, and chlorination as well as B(4,5)−H diiodination were achieved to grant access to a series of previously inaccessible B(4)-halogenated o-carboranes in a simple one-pot process (see scheme). Mono- and di-selectivity can be controlled by in situ removal of the carboxyl directing group.