Synthesis of aryl-2-deoxy-d-lyxo/arabino-hexopyranosides from 2-deoxy-1-thioglycosides
作者:Somak Paul、Narayanaswamy Jayaraman
DOI:10.1016/j.carres.2007.02.030
日期:2007.7
of aryl 2-deoxy-D-glycopyranosides from 2-deoxy-1-thioglycosides is reported. The alpha-anomers form as the major product when thioglycosides react with differently substituted phenols and naphthols, in the presence of N-iodosuccinimide/triflic acid. On the other hand, reaction of the thioglycosides with bromine initially, followed by reaction with aryloxy anions lead to aryl 2-deoxy-beta-D-glycosides
据报道由2-脱氧-1-硫代糖苷合成芳基2-脱氧-D-吡喃葡萄糖苷的任一异构体。在N-碘代琥珀酰亚胺/三氟甲磺酸存在下,当硫糖苷与不同取代的酚和萘酚反应时,α-端基异构体形成为主要产物。另一方面,首先使硫代糖苷与溴反应,然后与芳氧基阴离子反应,得到具有高特异性的芳基2-脱氧-β-D-糖苷。