Heterocyclization of 5,6-disubstituted 3-alkenyl-2-thioxothieno[2,3-<i>d</i>]pyrimidin-4-one with <i>p</i>-alkoxyphenyltellurium trichloride
作者:Mykola Kut、Mikhajlo Onysko、Vasyl Lendel
DOI:10.1515/hc-2016-0169
日期:2016.12.1
Abstract Electrophilic heterocyclization of 5,6-disubstituted 3-alkenyl-2-thioxothieno[2,3-d]pyrimidin-4-ones by treatment with p-alkoxyphenyltellurium trichlorides leads to annulation of the thiazoline moiety with the formation of 6,7-disubstituted-2-[dichloro-(p-alkoxyphenyl)telluromethyl]-2,3-dihydro-5Н-[1,3]thiazolo[3,2-а]thieno[2,3-d]pyrimidin-5-one hydrochlorides.
摘要 5,6-二取代的 3-烯基-2-硫代噻吩并[2,3-d]嘧啶-4-酮通过对-烷氧基苯基三氯化物处理的亲电杂环化导致噻唑啉部分的环化,形成6,7-二取代-2-[二氯-(对烷氧基苯基)碲甲基]-2,3-二氢-5Н-[1,3]噻唑并[3,2-а]噻吩并[2,3-d]嘧啶-5-酮盐酸盐.