Nucleophile-Selective Cross-Coupling Reactions with Vinyl and Alkynyl Bromides on a Dinucleophilic Aromatic Substrate
作者:Lu-Ying He、Mathias Schulz-Senft、Birk Thiedemann、Julian Linshoeft、Paul J. Gates、Anne Staubitz
DOI:10.1002/ejoc.201500138
日期:2015.4
A nucleophile-selective cross-coupling reaction on an aromatic compound bearing two metal groups, Bpin and SnMe3, has been developed. Previously, only aryl bromides and iodides could be used as electrophilic components, but in this work, the scope could be extended to vinyl and alkynyl bromides as electrophiles. This means that the roles typical in Sonogashira couplings or Heck reactions of the aromatic
已经开发了对带有两个金属基团 Bpin 和 SnMe3 的芳香族化合物的亲核试剂选择性交叉偶联反应。以前,只有芳基溴化物和碘化物可以用作亲电组分,但在这项工作中,范围可以扩展到乙烯基和炔基溴化物作为亲电试剂。这意味着芳香环的 Sonogashira 偶联或 Heck 反应中作为与乙烯基和炔基金属物种的介电偶联的典型作用被颠倒了,这为有机合成提供了一种新工具。第一个反应的亲核位点是甲锡烷基,随后,铃木-宫浦交叉偶联反应可以在同一分子上发生。