Synthesis of Glycoconjugate Benzothiazoles via Cleavage of Benzotriazole Ring
作者:Dhananjay Kumar、Amrita Mishra、Bhuwan B. Mishra、Subrato Bhattacharya、Vinod K. Tiwari
DOI:10.1021/jo3021049
日期:2013.2.1
access to glycoconjugate benzothiazoles from protected carbohydrates. The benzotriazolemethanethione 3, prepared by the reaction of free alcohol with bis(1H-benzo[1,2,3]triazol-1-yl)methanethione, on treatment with silanes or stannane under heating or microwave irradiation undergoes free radical β-scission of N–N bond and affords diverse range of 2-O-substituted benzothiazoles 4 via cyclative elimination