protective group of the substrates. This rearrangement was successfully applied to cyclopentenone annulation reactions onto cycloalkenes. An efficient synthesis of alkynyl-substituted bicyclo[n.1.0]alkanol derivatives from the corresponding cycloalkenes according to Danheiser's protocol was developed, and bicyclic cyclopentenones were obtained in moderate to good yield by applying to these the cobalt-mediated
1-(1-炔基)
环丙醇向 2-
环戊烯-1-酮的新重排是在其炔基部分与八羰基二
钴 (Co2(CO8)) 络合后进行的。1-(1-炔基)
环丙醇在其
炔烃末端具有广泛的取代基,以良好的产率重排为相应的 3-取代的 2-
环戊烯-1-酮。In case of the reactions of 1-alkynylcyclopropanols with an alkyl substituent on the cyclopropane ring, either 4-substituted or 5-substituted 2-cyclopenten-1-ones could be selectively obtained by appropriate choice of stereochemistry and protective group of the substrates. 这种重排成功地应用于
环戊烯酮环化成环烯烃的反应。根据