Nickel-Catalyzed Direct Electrochemical Cross-Coupling between Aryl Halides and Activated Alkyl Halides
作者:Muriel Durandetti、Jean-Yves Nédélec、Jacques Périchon
DOI:10.1021/jo9518314
日期:1996.1.1
of aryl halides and activated alkyl halides in DMF in the presence of catalytic amount of NiBr(2)bipy leads to cross-coupling products in good to high yields. The method applies to the synthesis of alpha-aryl ketones, alpha-aryl esters, and allylated compounds from readily available organic halides. Optimization of the process has been obtained by slowly adding the most reactive organic halide (usually
在催化量的NiBr(2)bipy存在下,在DMF中对芳基卤化物和活化的烷基卤化物的混合物进行电化学还原,可得到高至高收率的交叉偶联产物。该方法适用于由容易获得的有机卤化物合成α-芳基酮,α-芳基酯和烯丙基化的化合物。通过在电解过程中缓慢加入反应性最强的有机卤化物(通常是活化的烷基卤化物),可以实现工艺的优化,这最好是在涉及芳基溴化物的情况下,在70摄氏度下进行。