Highly stereospecific palladium-catalysed vinylation of vinylic halides under solid-liquid phase transfer conditions.
作者:Tuyêt Jeffery
DOI:10.1016/s0040-4039(00)98131-0
日期:1985.1
(E,E) and (E,Z) conjugated dienoates, dienones and dienals are obtained with high stereospecificity (⩾95%) and in high yields from the corresponding (E) and (Z) vinylic halides and vinylic substrates (methyl acrylate, methyl vinyl ketone or acrolein), in the presence of potassium carbonate, tetrabutylammonium chloride and a catalytic amount of palladium acetate, in N,N-dimethylformamide at room temperature
(E,E)和(E,Z)共轭二烯酸酯,二烯酮和二烯醛具有较高的立体特异性(⩾95%),并以高收率从相应的(E)和(Z)乙烯基卤化物和乙烯基底物(丙烯酸甲酯,在室温下,在N,N-二甲基甲酰胺中,在碳酸钾,四丁基氯化铵和催化量的乙酸钯存在下,加入甲基乙烯基酮或丙烯醛)。