A process forthe preparation ofD-glucitol hexanicotinate having the formula:
wherein nicotinic acid is reacted with D-glucitol, using nicotinamide as the catalist, in the presence of POCl3, and in py-ridine, the process being improved both as regards the reaction pattern and as regards the yield by having recourse to specific rea-ction conditions, particularly as regards time, temperature and molar ratio of reactans.
一种制备具有以下式子的
D-葡萄糖醇己
烟酸酯的工艺
其中,以烟酰胺为催化剂,在 POCl3 和
吡啶存在下,
烟酸与
D-葡萄糖醇反应,该工艺通过采用特定的反应条件,特别是反应时间、温度和反应物的摩尔比,改善了反应模式和产率。