Regioselective synthesis of oxepinones and azepinones by gold-catalyzed cycloisomerization of functionalyzed cyclopropyl alkynes
作者:Jesús M. Fernández-García、Patricia García-García、Manuel A. Fernández-Rodríguez、Alexandra Pérez-Anes、Enrique Aguilar
DOI:10.1039/c3cc46238b
日期:——
A regioselective synthesis of oxepinones and azepinones in good to excellent yields from alkynylcyclopropanecarboxylic acid derivatives is described. This novel cycloisomerization cascade process consists of a nucleophilic addition followed by a cyclopropane ring-opening, where both donor and acceptor groups are required as substituents of the cyclopropane ring.
本研究介绍了一种以炔基
环丙烷羧酸衍
生物为原料,以良好到极佳收率的区域选择性合成氧杂
环庚酮和氮杂
环庚酮的方法。这种新型的环异构化级联过程包括亲核加成和
环丙烷开环,其中供体和受体基团都需要作为
环丙烷环的取代基。