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 conjugated alkynyl cycloalkenones 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
研究了钯-乙酸银催化的乙烯基三氟甲磺酸酯和1-炔烃的交叉偶联。该策略为从共轭乙烯基三氟甲磺酸酯和1-炔烃中获得共轭炔基环烯酮提供了一种非常直接有效的方法。而且,衍生自1,3-环烷二酮的三氟甲磺酸酯无需进一步纯化,可以立即与1-炔烃反应,以优异的总收率提供共轭炔基环烯酮。版权所有©2009 John Wiley&Sons,Ltd.