has been achieved through the merger of iminium ion catalysis and transition-metal catalysis such that asymmetric induction derives from a readily accessible, inexpensive chiral nonracemic secondary amine catalyst rather than a chiral nonracemic phosphine as is typical of conventional asymmetric hydroacylation methods.
描述了
铑催化的对映选择性加氢酰化的新策略。这是通过将
亚胺离子催化和过渡
金属催化合并而实现的,使得不对称诱导衍生自易于获得的廉价手性非外消旋仲胺催化剂,而不是常规不对称加氢酰化方法中典型的手性非外消旋膦。