859466-10-7Relevant articles and documents
Visible-Light-Driven Synthesis of 4-Alkyl/Aryl-2-Aminothiazoles Promoted by in Situ Generated Copper Photocatalyst
Lei, Wen-Long,Wang, Tao,Feng, Kai-Wen,Wu, Li-Zhu,Liu, Qiang
, p. 7941 - 7945 (2017)
Room-temperature synthesis of 4-alkyl/aryl-2-aminothiazoles from vinyl azides and ammonium thiocyanate was accomplished with the aid of copper salts and blue LED irradiation. Mechanism investigation indicates that in situ-formed Cu(NCS)2- plays dual important roles in the reaction: (1) as the photocatalyst to activate vinyl azides, (2) as the Lewis acid catalyst to promote ring opening of 2H-azirines with thiocyanide. This process is distinguished by high yields, mild conditions, low catalyst loadings, and tolerating numerous alkyl- and aryl vinyl azides with an array of functional groups.