Unsymmetric diynes possessing a terminal alkyne moiety reacted with organoboronic acids both chemo- and stereoselectively to afford arylated or alkenylated exocyclic dienes by catalysis from the [Rh(cod)OCH3]2 complex. The use of a polar protic solvent, e.g. CH3OH is required for the success of the process under mild conditions.
通过[Rh(cod)OCH 3 ] 2络合物的催化作用,具有末端炔基部分的不对称二炔与有机
硼酸发生
化学和立体选择性反应,生成芳基化或
烯基化的环二
烯。为了在温和条件下成功实现该过程,需要使用极性质子溶剂(例如CH 3 OH)。