Copper-Catalyzed Regioselective Ring-Opening Hydroamination of Methylenecyclopropanes
作者:Daiki Nishikawa、Ryosuke Sakae、Yuya Miki、Koji Hirano、Masahiro Miura
DOI:10.1021/acs.joc.6b02483
日期:2016.12.16
A copper-catalyzed ring-opening hydroamination of methylenecyclopropanes with polymethylhydrosiloxane and O-benzoylhydroxylamines has been developed. The cyclopropane C–C bond cleavage occurs selectively at the more congested proximal position, and the corresponding homoallylamines are obtained in good to excellent yields. The umpolung electrophilic amination strategy with the hydroxylamine derivatives
已经开发了亚甲基环丙烷与聚甲基氢硅氧烷和O-苯甲酰基羟胺的铜催化的开环加氢胺化。环丙烷的C–C键断裂选择性地发生在更拥挤的近端位置,并且相应的高烯丙基胺以良好或极好的收率获得。羟胺衍生物的聚苯胺亲电胺化策略可以为亚甲基环丙烷在催化加氢胺化反应中提供新的反应方式。