Tin(IV) chloride mediated glycosylation in arabinofuranose, galactofuranose and rhamnopyranose
作者:Ashish K. Pathak、Yahya A. El-Kattan、Namita Bansal、Joseph A. Maddry、Robert C. Reynolds
DOI:10.1016/s0040-4039(98)00051-3
日期:1998.3
Using tin(IV) chloride, O-glycosylation reactions were performed on peracylated D-arabinofuranose, d-galactofuranose and l-rhamnofuranose as well as 1-bromo-d-arabinofuranoses at room temperature in good anomeric purities and yields. In these circumstances, this coupling method has certain advantages over standard glycosylation reactions, such as the Koenigs-Knorr methods which use the 1-halosugar
使用氯化锡(IV),在室温下以良好的异头异构体纯度和收率对过酰化的D-阿拉伯呋喃糖,d-半呋喃糖和1-鼠李糖呋喃糖以及1-溴-d-阿拉伯呋喃糖酶进行O-糖基化反应。在这些情况下,这种偶联方法比标准的糖基化反应具有某些优势,例如使用1-卤代糖(由1-酰基衍生物合成)和有毒汞盐作为偶联剂的Koenigs-Knorr方法。