A new and environmentally friendly protocol for the conversion of sugar per-acetates into thioglycosides under solvent free and catalytic conditions is presented. The procedure involves heating in the presence of InCl3 and various aryl thiols. For alkyl thioglycoside synthesis, cyclohexane thiol was found to give good results and yield a glycosyl donor with reactivity similar to a thioethyl congener
提出了一种在无溶剂和催化条件下将糖
过乙酸转化为
硫糖苷的新的环保方案。该过程包括在 InCl 3和各种芳基
硫醇存在下加热。对于烷基
硫代糖苷的合成,发现
环己烷硫醇产生了良好的结果并产生了具有与
硫乙基同系物相似的反应性的糖基供体。发现建立的最佳反应条件即使在以多克规模进行时也能以简单且高度非对映选择性的方式提供所需的
硫糖苷产物。