derivatives were established by 1 H and 13 C NMR spectroscopy. 1- N ,3- O -Carbonyl-β- d -xylopyranosylamine ( 21 ) was obtained from β- d -xylopyranosyl azide when spontaneous rearrangement of the 1,2-(cycliccarbamate) 5 into 21 occurred in water.
摘要α-d-吡喃葡萄糖基叠氮化物与三苯基膦和二氧化碳反应,生成1- N,2- O-羰基-α-d-葡萄糖基葡糖胺(7)及其α-d-呋喃糖类似物(1)和1- N, 3-O-羰基-α-d-呋喃呋喃糖胺(15)及其α-d-吡喃糖类似物(17)。类似地,α-d-吡喃吡喃糖基叠氮化物得到1-N,2-O-羰基-α-d-吡喃吡喃糖基胺(9)和其α-d-呋喃糖类似物(3),以及1-N,3-O-羰基-胺基。 α-d-核吡喃糖基胺(19)及其β-d-木吡喃糖类似物(21)。产物及其乙酰化衍生物的结构通过1 H和13 C NMR光谱确定。当水中1,2-(环状氨基甲酸酯)5自发重排为21时,从β-d-吡喃并吡喃糖基叠氮化物获得1-N,3-O-羰基-β-d-吡喃并吡喃糖基胺(21)。