Condensation of organic bromides with vinyl compounds catalysed by nickel complexes in the presence of zinc
作者:S.A. Lebedev、V.S. Lopatina、E.S. Petrov、I.P. Beletskaya
DOI:10.1016/0022-328x(88)80484-4
日期:1988.4
acetonitrile is an effective catalyst for reactions of aryl and alkyl bromides with styrene and methyl acrylate. With styrene, the reaction yields vinyl hydrogen replacement (condensation) products, viz. stilbenes and β-alkylstyrenes. Methyl acrylate reacts to give conjugated addition (hydrocondensation) products, methyl esters of β-aryl and β-alkyl propionic acids.
乙腈中的催化体系(Ph 3 P)2 NiC1 2 /锌/吡啶是芳基和烷基溴化物与苯乙烯和丙烯酸甲酯反应的有效催化剂。与苯乙烯一起,该反应产生乙烯基氢置换(缩合)产物,即。芪和β-烷基苯乙烯。丙烯酸甲酯反应生成共轭加成(加氢缩合)产物,即β-芳基和β-烷基丙酸的甲酯。