A novel rearrangement reaction of 2,5,5-triaryl-2-thiazolin-4-ones during thiation
作者:E. Koltai、J. Nyitrai、K. Lempert、Gy. Horváth、A. Kalmán、Gy. Argay
DOI:10.1016/s0040-4020(01)93402-7
日期:1973.1
2,5,5-Triphenyl-2-thiazolin-4-one (7) is transformed by P2S5 in boiling dioxane or xylene into N-(3-phenyl-2-benzo[b]thienyl)-thiobenzamide (10). The chloro substituted derivatives 16 and 17 of 7 react analogously but, in the case of 17, a by-product which is believed to be the desired 2-thiazoline-4-thione 18 is also formed. The latter may be isomerised subsequently to 20. The structure of 10 was
2,5,5-三苯基-2-噻唑啉-4-酮(7)在沸腾的二恶烷或二甲苯中被P 2 S 5转化为N-(3-苯基-2-苯并[b]噻吩基)-硫代苯甲酰胺(10)。7的氯取代的衍生物16和17类似地反应,但在17的情况下,也会生成副产物,据信这是所需的2-噻唑啉-4-硫酮18。后者可以在20以后被异构化。主要通过质谱和X射线阐明了10的结构。10及其氯取代衍生物的各种化学转化19和20被讨论。