作者:Zhi-Bing Dong、Jin-Quan Chen、Jia Guo
DOI:10.1055/s-0039-1690854
日期:2020.7
A highly efficient three-component protocol for the synthesis of the 2-alkylthiobenzoazoles is described. Tetramethylthiuram disulfide (TMTD) cyclized with o-aminothiophenols, generating the intermediate 2-mercaptobenzothiazoles, and the successive C–S coupling with halogenated alkanes afforded a series of 2-alkyl-substituted thiobenzothiazoles smoothly in a one-pot process. This procedure could also
描述了一种用于合成2-烷基硫代苯并唑的高效三组分方案。四甲基秋兰姆二硫化物(TMTD)与邻氨基硫酚进行环化,生成中间体2-巯基苯并噻唑,并与卤代烷烃连续进行C-S偶联,从而在一个一锅过程中平稳地获得了一系列2-烷基取代的硫代苯并噻唑。该方法也可用于制备2-烷基取代的硫代苯并恶唑和2-烷基取代的硫代苯并咪唑。廉价且容易获得的原料,无金属催化剂,广泛的底物范围以及以水为溶剂是该协议的特点。