用离子液体催化合成2,4,6-三异丁基-1,3,5-三氧噁烷  

Catalytic Synthesis of 2,4,6-Triisobutyl-1,3,5-trioxane by Ionic Liquids

作　　者：于心玉[1] 刘彩华[1] 彭惠琦[1] 梁学正[1] 杨建国[1] 何鸣元[1] 

机构地区：[1]华东师范大学上海市绿色化学与化工过程绿色化重点实验室,上海200062

出　　处：《合成化学》2006年第1期88-90,96,共4页Chinese Journal of Synthetic Chemistry

摘　　要：在[bm in]C l/FeC l3离子液体中由异戊醛合成2,4,6-三异丁基-1,3,5-三氧噁烷,转化率76%,选择性95%。优化反应条件为:异戊醛25 g,[bm in]C l/FeC l3[x(FeC l3)=0.67]2 g,室温反应1 h,离子液体能重复使用5次。The catalytic synthesis of 2, 4, 6-triibutyl-l,3,5-trioxane through the cyclotrimerization of isovaleradehyde by the ionic liquids of [ bmin] Cl/FeCl3 was studied. The results showed that the conversion of isovaleraldehyde and the selectivity of 2,4,6-triisobutyl-1,3,5-trioxane achieved 76% and 95%, respectively. The optimal conditions of the reaction （at room temperature for 1 h） were as follows： isovaleraldehyde was 25 g and [bmin]Cl/FeCl3 [x（FeCl3） =0.67] was 2 g. The ionic liquids of [brain] Cl/FeCl3 could be reused five times without decrease of the conversion and the selectivity.

关 键 词：离子液体 异戊醛 异丁基 三氧噁烷 合成 

分 类 号：TQ226.31[化学工程—有机化工] O623.731[理学—有机化学]