Formation of 4-Hydroxy-4-Substituted Sydno[3,4-a](4H)indoles via Dilithiation of 3-(2-Bromophenyl)sydnone
作者:Kenneth Turnbull、Douglas M. Krein
DOI:10.1055/s-1996-4373
日期:1996.10
Novel fused-ring sydnoindoles (cf.5) have been prepared, generally in excellent yield, by dilithiation of 3-(2-bromophenyl)sydnone (3) and subsequent reaction with esters.