An efficient palladium-cocatalyst system for vinylation of unsaturated carboxylic acid has been exploited,among which aliphatic amines(ALA)are firstly used as cocatalysts.

以醋钯/邻菲洛林/脂肪胺体系,烯烯酯原料,通过烯基交换反应制备烯烯酯。