Regioselective control using a catalyst switch in the reaction of diarylmethyl chlorides with allyltributylstannane
作者:Bo Peng、Xiujuan Feng、Xin Zhang、Liyun Ji、Ming Bao
DOI:10.1016/j.tet.2010.06.019
日期:2010.8
is described. The reaction pathway (allylativedearomatization vs cross-coupling) can be easily controlled using different catalysts. When reactions are performed in the presence of Pd2(dba)3 and PPh3, allylativedearomatization proceeds to provide satisfactory yield of the desired products. However, when Cy3P·HBF4 is employed as a catalyst instead of palladium, a Stille-type cross-coupling reaction