Palladium- and Nickel-Catalyzed Kumada Cross-Coupling Reactions of <i>gem</i>-Difluoroalkenes and Monofluoroalkenes with Grignard Reagents
作者:Wenpeng Dai、Juan Xiao、Guanyi Jin、Jingjing Wu、Song Cao
DOI:10.1021/jo5022234
日期:2014.11.7
A novel Kumada–Tamao–Corriu cross-coupling reaction of gem-di- or monofluoroalkenes with Grignard reagents, with or without β-hydrogen atoms, in the presence of a catalytic amount of palladium- or nickel-based catalysts has been developed. The reaction is performed under mild conditions (room temperature or reflux in diethyl ether for 1–2 h) and leads to di-cross- or mono-cross-coupled products in
在催化量的钯或镍基催化剂存在下,开发了一种新型的Kumada-Tamao-Corriu宝石二或单氟烯烃与Grignard试剂(含或不含β-氢原子)的交叉偶联反应。该反应在温和的条件下进行(室温或在乙醚中回流1–2小时),从而以高收率或高收率得到双交叉或单交叉偶联的产物。