Dual catalysis by concurrent activation of glycals and (O-azaaryl)-carboxaldehydes using palladium and N-heterocyclic carbene has been developed. This activation through the formation of the Breslow intermediate and a π-allyl Pd complex is a novel and efficient approach to yield C-glycosides with yields up to 85%.
通过同时激活甘露糖和(O-azaaryl)-羰基醛,使用钯和N-杂环卡宾进行双催化已经开发。通过形成Breslow中间体和π-烯丙基Pd配合物的激活是一种新颖高效的方法,可产生收率高达85%的C-糖苷。