Nucleophilic Ring Opening of Donor–Acceptor Cyclopropanes with the Cyanate Ion: Access to Spiro[pyrrolidone-3,3′-oxindoles]
作者:Sergey V. Zaytsev、Konstantin L. Ivanov、Dmitry A. Skvortsov、Stanislav I. Bezzubov、Mikhail Ya. Melnikov、Ekaterina M. Budynina
DOI:10.1021/acs.joc.8b00922
日期:2018.8.3
The nucleophilic ring opening of donor–acceptor cyclopropanes with the cyanate ion is reported for the first time. Cyclopropanes, spiro-activated with oxindole fragments as acceptors, are shown to undergo transformations into biologically relevant spiro[pyrrolidone-3,3′-oxindoles] while being treated with potassium cyanate under microwave assistance.
首次报道了供体-受体环丙烷与氰酸根离子的亲核开环。已显示以羟吲哚片段为受体的螺环活化的环丙烷在微波辅助下用氰酸钾处理时,会转变为生物学上相关的螺[吡咯烷酮-3,3'-羟吲哚]。