铬酸氢根季铵树脂的合成及其对糠醇的氧化  

Synthesis of CrO_4H^- quaternary ammonium salt resin and its application in oxidation of furancarbinol to furaldehyde

作　　者：李晓如[1] 赵金尧[1] 杨辉[1] 

机构地区：[1]中南大学化学化工学院,湖南长沙410083

出　　处：《中南大学学报（自然科学版）》2004年第4期595-598,共4页Journal of Central South University:Science and Technology

基　　金：湖南省科委科研基金资助项目(01 962 50 2)

摘　　要：以自制的负载铬酸氢根季铵树脂为氧化剂将糠醇氧化为糠醛,对反应温度、反应时间、溶剂、季铵树脂与糠醇的量比对氧化反应的影响进行研究,并对反应条件进行优化,得到优化条件为:以苯为溶剂,n树脂∶n醇=3.5∶1.0,回流时间为10h。研究结果表明:负载铬酸氢根的季铵树脂可选择性地将糠醇氧化为糠醛,且铬酸氢根季铵树脂可回收重复使用;在最优条件下,糠醛产率达75%。CrO_4H^- quaternary ammonium salt resin was synthesized and used as a selective oxidant for oxidation of furancarbinol to furaldehyde. The effects of the reaction temperature, the reaction time, the solvent and the molar ratio of resin to alcohol on the oxidation of furancarbinol to furaldehyde were investigated. The optimal reaction conditions are obtained as follows: benzene as the solvent, refluxing time for 10 h, the molar ratio of resin to alcohol at 3.5∶1.0. Under the optimal reaction conditions, the productivity is 75%. The results show that the resin is an effectively selective oxidant for oxidation of furancarbinol to furaldehyde.

关 键 词：铬酸氢根季铵树脂 糠醇 糠醛 氧化 

分 类 号：O625.34[理学—有机化学] O643.36[理学—化学]