摘要
以葡萄糖和乙酸酐为原料,碘为催化剂,无溶剂条件下合成了葡萄糖五乙酸酯,考察了糖酐原料配比、反应时间、反应温度及催化剂用量等因素对产品收率的影响。较优反应条件为:0.1 mol葡萄糖,n(葡萄糖):n(乙酸酐)=1.0:6.0,反应温度25℃,反应时间1.0 h,催化剂用量0.2 g,酯收率可达96.3%。
Glucose pentaacetate was synthesized under solvent-free condition from glucose and acetic anhydride, using iodine as the catalyst. Influence of glucose/acetic anhydride mole ratio, reaction time, reaction temperature and catalyst dosage on the glucose pentaacetate yield were investigated and favorable reaction condition was obtained as follows : 0.1 tool glucose, n (glucose) : n ( acetic anhydride) = 1. 0: 6.0, reaction at 25℃ for 1.0 h, dosage of the catalyst 0.2 g and glucose 0.1 tool. Glucose pentaacetate yield of 96.3% was obtained.
出处
《工业催化》
CAS
2010年第11期66-68,共3页
Industrial Catalysis
作者简介
曾创,1981年生,男,广东省潮洲市人,在读硕士研究生,主要从事糖化学合成的研究。通讯联系人:许招会,男,高级工程师,主要从事有机化学教学及科研工作。E-mail:gotoxzh@tom.com