助催化剂对D-阿拉伯糖差向异构化为D-核糖的影响  

Effect of catalyst promoter on epimerization of Darabinose to D-ribose

作　　者：朱园园[1] 古双喜[1] 陈先明[1] 赵帆[1] 

机构地区：[1]湖北省化学研究院食品添加剂及功能助剂研究中心,湖北武汉430074

出　　处：《现代化工》2006年第z2期261-263,共3页Modern Chemical Industry

摘　　要：研究了在仲钼酸铵催化D-阿拉伯糖差向异构化为D-核糖的水相体系中,氯化物和硼酸助催化剂对反应的影响。适宜条件为:w(催化剂)均为3%,当n(CaCl2)∶n(D-阿拉伯糖)=1∶1时,D-阿拉伯糖转化率为38.6%,D-核糖选择性为88.7%,D-核糖产率为34.2%;当n(H3BO3)∶n(D-阿拉伯糖)=1.5∶1时,相应的转化率为42.9%,选择性为89.1%,产率38.2%。The effects of chloride and boric acid on the epimerization of D-arabinose to D-ribose in aqueous solution using ammonium paramolybdate as catalyst was studied.The optimal conditions were gotten as follows:w(catalyst)=3%,when(n(CaCl_2)∶)n(D-arabinose)=1∶1,the results were 38.6% of D-arabinose conversion,88.7% of D-ribose selectivity,and 34.2% of D-ribose yield;when n(H_3BO_3)∶n(D-arabinose)=1.5∶1,the results were 42.9%,89.1%,38.2%,respectively with the above order.

关 键 词：D-核糖 D-阿拉伯糖 差向异构化 

分 类 号：O621.253[理学—有机化学]