物理化学学报Issue(2)：337-343,7.DOI:10.3866/PKU.WHXB201412101
碱性离子液体催化合成三羟甲基丙烷
Catalytic Synthesis of Trimethylolpropane in the Presence of Basic Ionic Liquid
摘要
Abstract
Ionic liquid (IL) catalyst attracts increasing attention during last few decades due to its excel ent advantages of both homogeneous and heterogeneous catalyst. Here, a novel and efficient strategy for the production of trimethylolpropane (TMP) is proposed with basic IL catalysts. The catalytic activities of the IL catalysts are investigated. The effects of catalyst dosage, reaction temperature, time, and the molar ratio of the reactants are also studied. The results show that the basicity of the IL catalyst has a significant effect on the catalytic activity, where stronger basicity indicates higher catalytic activity. The IL 1-butyl-3-methyl imidazolium hydroxyl ([bmim]OH) is proven to be the most efficient catalyst where more than 84%isolated yield of TMP was obtained under optimized conditions. Furthermore, both the IL catalyst and butyraldehyde show excel ent recyclability. Moreover, this IL catalytic system avoids the inevitable desalination encountered by current processes utilizing inorganic alkali catalysts.关键词
三羟甲基丙烷/离子液体/碱性强度/Cannizzaro缩合/重复使用性Key words
Trimethylolpropane/Ionic liquid/Basic strength/Cannizzaro condensation/Recyclability分类
化学化工引用本文复制引用
龙金星,袁正求,马浩,舒日洋,李雪辉..碱性离子液体催化合成三羟甲基丙烷[J].物理化学学报,2015,(2):337-343,7.基金项目
The project was supported by the National Natural Science Foundation of China (51306191,21336002) and Doctoral Fund of Ministry of Education of China (20130172110043).国家自然科学基金(51306191,21336002)及教育部博士点基金(20130172110043)资助项目 （51306191,21336002）
