| 梁学正,高珊,于心玉,刘彩华,杨建国.HMCM-22分子筛催化1,3-苯并二噁茂烷类化合物合成的研究[J].分子催化,2006,(6):520-524 |
| HMCM-22分子筛催化1,3-苯并二噁茂烷类化合物合成的研究 |
| Study on Catalytic Synthesis of 1,3-Benzodioxoles By HMCM-22 zeolite |
| 投稿时间：2005-12-31 修订日期：2006-02-16 |
| DOI： |
| 中文关键词: 苯并二噁茂烷,HMCM-22分子筛,缩合,合成 |
| 英文关键词:Benzodioxoles,HMCM-22 zeolite,condensation,catalyze synthesis |
| 基金项目:上海市科技发展基金 |
| 梁学正 高珊 于心玉 刘彩华 杨建国 |
| 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 |
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| 中文摘要: |
| 研究了HMCM-22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、异戊醛、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、HMCM-22分子筛用量等因素对酚与醛(酮)反应的影响.结果表明,当酚与醛(酮)摩尔比为1∶1.4,催化剂用量为3.5 g/1mol醛(酮),反应5 h,选择性一般在97%以上,转化率也一般在70%以上,表明HMCM-22分子筛对邻苯二酚与醛(酮)的反应有较好的催化性能. |
| 英文摘要: |
| The acetalization and ketalization of various aldehydes and ketones with catechol using HMCM-22 as catalyst were studied.Effect of reaction time,mole ratio of reactants and amount of catalyst on yield of Benzodio(xoles) were investigated.Results show that HMCM-22 was an efficient catalyst for the acetalization and ketalization with high conversion and selectivity in mild conditions.The best reaction conditions as follows: molar ratio of catechol to aldehydes or ketones was 1:1.4,catalyst amount was 3.5g/1mol catechol,reaction time was 5h.Under that conditions,conversion of the catechol was over 70% and selectivity of benodioxoles was over 97%. |
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