[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
制备了 2-(4-Fluorophenyl)methylidene-1-thiooxoindane-, 2-(4-methoxyphenyl)methylidene-1-thiooxoindane-, 2-(4-N,N-dimethyaminophenyl)methylidene-1-thiooxoindane 二聚体 5a–c通过相应的 α,β-不饱和酮 3a-c 与 Lawesson 试剂 (LR) 在回流苯中反应。当这些二聚体在二甲苯中与 LR 回流时,得到 1,2-thiaphospholene-2-硫化物 7a-c。另一方面,在丙烯酰胺或二氯马来酸酐存在下,二聚体 5a-c 的热解分别得到相应的 Diels-Alder 型 8a-c 和 10a-c 环加合物。3-氨基甲酰基噻喃衍生物 8a-c 显示出良好的抗菌活性。