作者:Jean-Pierre Praly、Christian Bonnevie、Peter Haug、Gérard Descotes
DOI:10.1016/0040-4020(96)00454-1
日期:1996.7
Treatment of with trimethylsilyl azide in the presence of trimethylsilyl triflate in dry acetonitrile led, after neutralization and desilylation, to an anomeric mixture of azides in 94 % yield (). Likewise, azides were prepared from . The corresponding acetates and a mesylate were prepared in high yield under standard conditions. Photolysis of these azido sugars, in different solvents, led mainly to
在三氟甲磺酸三甲基甲硅烷基酯存在下,在干燥的乙腈中用三甲基甲硅烷基叠氮化物处理,在中和和甲硅烷基化后,得到叠氮化物的异头混合物,收率为94%()。同样,叠氮化物是从制备的。在标准条件下以高收率制备了相应的乙酸盐和甲磺酸盐。这些叠氮基糖在不同溶剂中的光解主要产生了两个不稳定的,经NMR光谱鉴定的n分离的亚酰亚胺。对于α-叠氮化物和β-叠氮化物,C-2 bondC-3键的优选裂解和C-3碳向腈的迁移会导致主要的环扩展光产物,而C-1碳原子会迁移占未成年人N的结构形成取代的-1,5-亚氨基糖基内酯。与从环状和无环叠氮基醚的光解中得到的其他观察结果一致,未观察到环氧原子的迁移。