Chemoselective synthesis of highly substituted 1,2-allenyl ketones, furans, and 2-alkynyl ketones from reaction of lithium selenolates with 1-(1-alkynyl)cyclopropyl ketones and electrophiles
作者:Jianfeng Xu、Shugao Zhu、Luling Wu、Xian Huang
DOI:10.1039/c2ob25071c
日期:——
A homo-Michael addition reaction of lithium selenolates with 1-(1-alkynyl)cyclopropyl ketones and the subsequent reaction with electrophiles such as PhSeBr, NFSI and NCS is reported. Based on the nature of electrophiles, this reaction may afford highly substituted 1,2-allenyl ketones or furans (E+ = PhSe+) and 2-alkynyl ketones (E+ = F+, Cl+, active halides) as the final products, respectively.