SIOC English
有机化学
高级检索

有机化学 ›› 2007, Vol. 27 ›› Issue (08): 970-975. 上一篇    下一篇

研究论文

HAlMCM-41介孔分子筛催化1,3-苯并二噁茂烷合成的研究

梁学正，高珊，刘彩华，于心玉，杨建国*，何鸣元   

  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:2006-03-27 修回日期:1900-01-01 发布日期:2007-07-30
  • 通讯作者: 杨建国*

Study on Catalytic Synthesis of 1,3-Benzodioxoles byHAlMCM-41 Zeolite

LIANG Xue-Zheng, GAO Shan, LIU Cai-Hua, YU Xin-Yu
YANG Jian-Guo*, HE Ming-Yuan   

  1. (Shanghai Key Laboratory of Green Chemistry and Chemical Process, East China Normal Univer-sity,
    Shanghai 435002)
  • Received:2006-03-27 Revised:1900-01-01 Published:2007-07-30
  • Contact: YANG Jian-Guo*

PDF

755

被引次数

6 | 1

研究了HAlMCM-41分子筛催化邻苯二酚与环己酮、丁酮、丙酮、丙醛、丁醛、异丁醛、戊醛、正己醛、正辛醛、苯甲醛、二苯甲酮等十余种醛(酮)的缩合反应. 考察了反应时间、酚与醛(酮)的配比、HAlMCM-41分子筛用量、硅铝比、催化剂重用次数等因素对邻苯二酚与醛(酮)反应的影响. 结果表明, 当邻苯二酚与醛(酮)物质的量比为1∶1.4, 催化剂用量为3.5 g/mol邻苯二酚, 反应4 h, 分子筛n(SiO2)/n(Al2O3)为15时, 选择性一般在99.4%以上, 转化率也一般在85.6%以上, 因此, HAlMCM-41分子筛对邻苯二酚与醛(酮)的反应有较好的催化性能.

关键词: 苯并二噁茂烷, 合成, 分子筛, 催化, 缩合

The acetalization and ketalization of various aldehydes and ketones with catechol using HAlMCM-41 zeolite as catalyst were studied. Results showed that HAlMCM-41 was an efficient catalyst for the acetalization and ketalization with high conversion and selectivity in mild conditions. The best reaction condition is that molar ratio of catechol to aldehydes or ketones was 1∶1.4, catalyst amount was 3.5 g/mol catechol, reaction time was 4 h, n(SiO2)/n(Al2O3)＝15. Under this condition, conversion was over 85.6% and selectivity was over 99.4%.

Key words: catalyze, zeolite, synthesis, condensation, benzodioxole