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
已经开发出一种简洁有效的苯并三唑介导的新型两步操作规程,可轻松从受保护的碳水化合物中获取糖缀合物苯并噻唑。的benzotriazolemethanethione 3,游离醇与双反应(1制备ħ -苯并[1,2,3]三唑-1-基)甲硫酮,与在加热下或在微波辐射经历硅烷或锡烷处理自由基β-断裂的N-N键和2-得到各种各样ø -取代的苯并噻唑4经由cyclative消除分子氮。所有化合物的结构已通过IR,NMR,MS和元素分析得到了阐明,其中五个已通过单晶X射线分析进行了表征。