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(lèi)配體的反應活性都非常高，對于由于催化劑活性低難以在工業(yè)上應用的鈀催化烯丙基取代反應來(lái)說(shuō)，這無(wú)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(lái)研究平面手性的作用。
