E-resources
Peer reviewed
-
Mei, Ruhuai; Xiong, Feng; Yang, Chenrui; Zhao, Jinwu
Advanced synthesis & catalysis, March 29, 2021, Volume: 363, Issue: 7Journal Article
Herein, a three‐component cyclization reaction of benzimidazoles, aryl nitroalkenes and elemental sulfur has been developed. Cheap and easily available salicylic acid found to be an efficient mediator for the present transformation. This protocol provides a facile access to structurally significant imidazo2,1‐bthiazole skeleton from simple raw materials with a range of compatible synthetically useful functionalities. Furthermore, gram‐scale preparation of this method is effective, which enables potential applications of it in broader fields of molecule synthesis. Mechanistically, a reaction cascade involving sequential aza‐Michael addition, nucleophilic sulfuration, and deaminative aromatization was proposed.
