Reaction of 3,4,6-triacetyl-β-D-glucopyranosyl chloride with silver acetate in acetic acid gave 1,3,4,6-tetraacetyl-α-D-glucopyranose, m.p. 97–98 °C., [α]D + 145° (chloroform). 3,4,6,-Triacetyl-α-D-glucopyrartosyl chloride, m.p. 93–94 °C., [α]D + 185° (chloroform), prepared from the β-anomer by isomerization in acetone, with silver acetate in acetic acid gave 1,3,4,6-tetraacetyl-β-D-glucopyranose, m.p. 137–138 °C., [α]D + 26° (chloroform). The structures of these glucose tetraacetates were established by the interconversion of chloroacetyl derivatives.
3,4,6-三乙酰基-β-
D-葡萄糖吡喃基
氯化物与
醋酸银在
冰醋酸中反应得到1,3,4,6-四乙酰基-α-
D-葡萄糖吡喃糖,熔点97-98°C,[α]D +145°(
氯仿)。3,4,6-三乙酰基-α-
D-葡萄糖吡喃基
氯化物,熔点93-94°C,[α]D +185°(
氯仿),由β异构体在
丙酮中异构化制备,与
醋酸银在
冰醋酸中反应得到1,3,4,6-四乙酰基-β-
D-葡萄糖吡喃糖,熔点137-138°C,[α]D +26°(
氯仿)。这些
葡萄糖四乙酰基的结构是通过
氯乙酰衍
生物的相互转化确定的。