HZSM-5分子筛催化合成1,3-苯并二口恶茂烷类化合物  

Catalytic Synthesis of 1,3-Benzodioxoles By HZSM-5 Zeolite

作　　者：高珊[1] 梁学正[1] 杨建国[1] 刘彩华[1] 何鸣元[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：《精细化工》2006年第5期469-472,共4页Fine Chemicals

基　　金：上海市科学技术发展基金项目(No.03DJ14005)~~

摘　　要：研究了HZSM-5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10余种醛(酮)的缩合反应。考察了反应时间、酚与醛(酮)的配比、HZSM-5分子筛用量等因素对邻苯二酚与醛(酮)反应的影响。结果表明,当n(邻苯二酚)∶n〔醛(酮)〕=1∶1.4,催化剂用量为3.5 g/mol邻苯二酚,反应5 h,选择性一般在99.2%以上,转化率也一般在30%以上,表明,HZSM-5分子筛对邻苯二酚与醛(酮)的反应有较好的催化性能。The acetalization and ketalization of various aldehydes and ketones with catechol by using HZSM -5 as catalyst were studied. The results show that HZSM -5 with n（ SiO2 ）/n （Al2O3 ） = 40 is an efficient catalyst for the acetalization and ketalization with high conversion and selectivity under mild conditions. Thus, when molar ratio of catechol to aldehydes or ketones was 1：1.4, catalyst amount was 3.5 g/mol catechol and reaction time was 5 h, the conversion was over 30% and selectivity was over 99.2%.

关 键 词：苯并二嗯茂烷 HZSM-5分子筛 缩醛化 缩酮化 

分 类 号：TQ225.24[化学工程—有机化工] TQ032.41