Acetolysis of 6-Deoxysugar Disaccharide Building Blocks:<i>exo</i>versus<i>endo</i>Activation
作者:Luigi Cirillo、Emiliano Bedini、Michelangelo Parrilli
DOI:10.1002/ejoc.200800696
日期:2008.12
Two different protocols for the mild and selective acetolysis of 6-deoxysugar methyl disaccharides under thermodynamic or kinetic control have been developed. The structures of the disaccharides obtained depend on the protocol used and, in the kinetically controlled cases, on the 6-deoxysugar configuration and protecting group pattern too. The behavior of 6-deoxyhexose oligosaccharides of different
已经开发了两种不同的协议,用于在热力学或动力学控制下对 6-脱氧糖甲基二糖进行温和和选择性的乙酰化。获得的二糖的结构取决于所使用的方案,在动力学控制的情况下,也取决于 6-脱氧糖配置和保护基团模式。不同系列(鼠李糖、藜麦和岩藻糖)的 6-脱氧己糖寡糖在这两种反应条件下的行为已被研究并基于在乙酰化机制中外氧与内氧活化之间的竞争进行合理化。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)