TS-1/H2O2体系催化香茅醛肟化反应  

Ammoximation of Citronellal with H_2O_2 Catalyzed by TS-1

作　　者：张硕[1] 邓秀娟[1] 申璐[1] 刘月明[1] 

机构地区：[1]华东师范大学化学系,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：《催化学报》2012年第4期723-729,共7页

基　　金：国家自然科学基金(20973064);国家重点基础研究发展计划(973计划,2011CB201403);上海市教委基金(11CXY20);上海市重点学科建设项目基金(B409)~~

摘　　要：将TS-1/H2O2催化体系用于催化香茅醛氨肟化制备香茅醛肟反应中,结果表明,在优化的反应条件下,香茅醛转化率和香茅醛肟选择性分别达99.9%和99.2%以上.反应过程中主要存在两对竞争反应:TS-1催化的醛肟化反应和碱催化的羟醛缩合反应;TS-1催化的醛肟化反应和双键环氧反应.通过调节体系中氨含量可有效抑制副反应.The TS-1/H2O2 system has excellent catalytic performance in citronellal ammoximation to citronellal oxime.The effects of various reaction parameters on the catalytic properties of TS-1 were studied in detail.Under the optimized reaction conditions,citronellal conversion and citronellal oxime selectivity are over 99.9% and 99.2%,respectively.We found that there is also aldol condensation,which is competitive with ammoximation.Moreover,the epoxidation and ammoximation of citronellal catalyzed by TS-1 are also competitive reactions.The side reactions can be restrained efficiently by adjusting NH3 amount in reaction system.

关 键 词：TS-1分子筛 香茅醛 过氧化氢 氨肟化 香茅醛肟 

分 类 号：O621.2[理学—有机化学]