Efficient synthesis of conjugated alkynyl cycloalkenones: Pd(PPh<sub>3</sub>)<sub>4</sub>-AgOAc- catalyzed direct coupling of 1-alkynes with 3-oxocycloalkenyl triflates
作者:Chenggang Jiang、Zonglei Zhang、Hangxian Xu、Liang Sun、Lanhai Liu、Cunde Wang
DOI:10.1002/aoc.1592
日期:2010.3
Palladium—silver acetate‐catalyzed cross coupling of vinyl triflates and 1‐alkynes was investigated. This strategy offered a very straightforward and efficient method for access to conjugatedalkynylcycloalkenones from the conjugated vinyl triflates and 1‐alkynes. Moreover, the triflates derived from 1,3‐cycloalkadione needed no further purification and could be reacted immediately with 1‐alkynes