催化学报 ›› 2012, Vol. 33 ›› Issue (4): 723-729.DOI: 10.3724/SP.J.1088.2012.11019

• 研究论文 • 上一篇    下一篇

TS-1/H2O2 体系催化香茅醛肟化反应

张硕, 邓秀娟, 申璐, 刘月明*   

  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
  • 收稿日期:2011-10-13 修回日期:2011-12-06 出版日期:2012-04-13 发布日期:2015-09-09

Ammoximation of Citronellal with H2O2 Catalyzed by TS-1

ZHANG Shuo, DENG Xiujuan, SHEN Lu, LIU Yueming*   

  1. Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, China
  • Received:2011-10-13 Revised:2011-12-06 Online:2012-04-13 Published:2015-09-09

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.

关键词: TS-1 分子筛, 香茅醛, 过氧化氢, 氨肟化, 香茅醛肟

Abstract: 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.

Key words: TS-1 zeolite, citronellal, hydrogen superoxide, ammoximation, citronellal oxime