Electrochemical enaminone C–H thiolation/C–N amination cascade for thiazole synthesis and its diastereoselective dearomatization
作者:Haijin Guo、Yunyun Liu、Chengping Wen、Jie-Ping Wan
DOI:10.1039/d2gc01644c
日期:——
An electrochemical method for the synthesis of 2-aminothiazoles via aryl ring construction using enaminones and thioureas is reported. The cascade enamine C–H thiolation and C–N amination constitutes a major transformation for the thiazole ring formation. Moreover, a simple modification of electrochemical conditions enables the tunable dearomatization of the thiazole ring via vicinal dialkoxylation
报道了一种使用烯胺酮和硫脲通过芳环结构合成 2-氨基噻唑的电化学方法。级联烯胺 C-H 硫醇化和 C-N 胺化构成噻唑环形成的主要转变。此外,对电化学条件的简单修改能够通过连位二烷氧基化对噻唑环进行可调节的脱芳构化,从而合成具有优异非对映选择性的具有季碳中心的 4,5-二烷氧基噻唑啉。