That is encouraging for palladium-catalyzed allylic substitution reactions which is difficult to use in industry due to the current low reactivity of catalysts. 而且,值得注意的是這類配體的反應活性都非常高,對於由於催化劑活性低難以在工業上應用的鈀催化烯丙基取代反應來說,這無疑是一大喜訊。
There were few successful examples of regioselectivity in reactions of unsymmetrically allylic derivatives, and enantioselectivities obtained with prochiral nucleophiles. 因而我們選用反應機理相對比較清楚的鈀催化烯丙基取代反應來研究平面手性的作用。