A rhodium-catalyzed carbene transfer to alkynes is reported. Easily available enynones served as the carbene source replacing diazocompounds. The overall process involved a cyclization–cyclopropenation–ring enlargement sequence.
报告了
铑催化碳烯向炔类化合物的转移。容易获得的炔酮作为碳源取代了重氮化合物。整个过程包括环化-环
丙烯化-环扩大顺序。