Sugar chemistry without protecting groups: A regioselective addition of the primary hydroxyl of monosaccharides to alkylisocyanates
作者:Daniel Plusquellec、Martine Lefeuvre
DOI:10.1016/s0040-4039(00)95568-0
日期:——
The primary hydroxyl groups of -glucose, -galactose and methyl-α--glucoside add selectively to alkylisocyanates, thus affording respectively 6--carbamoyl--glycopy-ranoses and methyl-6--carbamoyl-α--glucopyranosides with high yields (except for galactosyl compounds), the temporary protection of the other hydroxyls of the starting sugars being not necessary in the present case.
-葡萄糖,-半乳糖和甲基-α--葡萄糖苷的伯羟基选择性地添加到烷基异氰酸酯中,从而分别以高收率分别提供6--氨基甲酰基--甘露糖-核糖和甲基-6-氨基甲酰基-α-葡萄糖基除了半乳糖基化合物以外),在当前情况下不需要对起始糖的其他羟基进行临时保护。