Carbon tetrachloride-free allylic halogenation-mediated glycosylations of allyl glycosides
作者:Anupama Das、Narayanaswamy Jayaraman
DOI:10.1039/d1ob01298c
日期:——
CCl4 as a solvent. The activated mixed halo-allyl glycosides led to glycosylations, mediated by a triflate, in a latent-active manner, with the allyl glycosides acting as donors and acceptors. Systematic glycosylation studies are performed with different triflate promoters, non-glycosyl acceptors and various allyl glycosyl donors. One-pot allylic halogenations and subsequent glycosylations are developed
烯丙基糖苷的烯丙基溴化使用 NBS/AIBN 试剂在 (EtO) 2 CO 和 PhCF 3溶液中进行,不使用 CCl 4作为溶剂。活化的混合卤代烯丙基糖苷导致糖基化,由三氟甲磺酸酯介导,以潜在活性的方式,烯丙基糖苷充当供体和受体。使用不同的三氟甲磺酸酯启动子、非糖基受体和各种烯丙基糖基供体进行系统糖基化研究。在 PhCF 3溶液中开发了一锅烯丙基卤化和随后的糖基化。这种较新的糖基化方法用于获得木糖-吡喃糖苷二糖和三糖。