In the presence of a catalytic amount of iron salts and N,N,N,N-tetramethylethylene diamine as additive, alkyl bromide reacted with biphenyl magnesium bromide to obtain the cross-coupling product in good yields. The suitable amount of catalyst and the additive are 5 % mol (based on alkyl bromide), 1.3 equiv(based on alkyl bromide), respectively. Under the optimal conditions, the yields of the cross-coupling could reach up to 92.3 %.
在
铁盐催化剂及N,N,N,N-
四甲基乙二胺助剂的存在下,烷基
溴化物与
联苯基
镁溴化物反应,以良好的产率获得了交叉偶联产物。适宜的催化剂和助剂用量分别为烷基
溴化物的5 %摩尔百分比和1.3当量。在最佳条件下,交叉偶联产物的产率可达92.3 %。