[4 + 2] Cycloaddition Reactions Involving 2-Arylmethylidene-1-thiooxoindan Intermediates and Antimicrobial Activity Evaluation of Some Products
作者:Mohamed I. Hegab、Tamer A. G. Elmalah、Farouk A. Gad
DOI:10.1080/10426500701839882
日期:2009.7.13
2-(4-Fluorophenyl)methylidene-1-thiooxoindane-, 2-(4-methoxyphenyl) methylidene-1-thiooxoindane-, 2-(4-N,N-dimethyaminophenyl)methylidene-1-thiooxoindane dimers 5a–c were prepared by the reaction of the corresponding α,β -unsaturated ketones 3a–c with Lawesson' Reagent (LR) in refluxing benzene. When these dimers were refluxed with LR in xylene, the 1,2-thiaphospholene-2-sulfides 7a–c were obtained