(PhCl) was observed unexpectedly in the Pd-catalyzed cascade Sonogashira–hydroarylation reaction. This new type of carbon–carbon bond forming cross-coupling reaction was efficiently catalysed by Pd2(dba)3 in the presence of a catalytic amount of PhCl, which provides a facile and direct approach to the synthesis of trisubstituted olefins.
在Pd催化的级联Sonogashira-加氢芳基化反应中出乎意料地观察到了
氯苯(PhCl)的普遍加速作用。在催化量的PhCl存在下,Pd 2(dba)3有效地催化了这种新型的碳-碳键形成交叉偶联反应,这为三取代烯烃的合成提供了一种简便而直接的方法。