Abstract 1,2-Migration and concurrent glycosidation of ethyl(phenyl) 2,3-orthoester-1-thio-α- d - and l -mannopyranosides under the action of TMSOTf readily afforded the corresponding 2- S -ethyl(phenyl)-2-thio-β-glucopyranosides, ready precursors to 2-deoxy- arabino -hexopyranosides (2-deoxy-β-glucopyranosides).
摘要在
TMSOTf作用下,乙基(
苯基)2,3-原酸
酯-1-
硫代α-d-和1-甘露
吡喃糖苷的1,2-迁移和同时的糖基化反应很容易得到相应的2-S-乙基(
苯基)- 2-
硫代-β-
吡喃
葡萄糖苷,是2-
脱氧-
阿拉伯糖基-己
吡喃糖苷(2-
脱氧-β-
吡喃
葡萄糖苷)的现成前体。