HY分子筛催化1,3-苯并二噁茂烷类化合物合成的研究  

Synthesis of 1,3-Benzodioxoles by Catalysis of HY Zeolite

作　　者：梁学正[1] 高珊[1] 杨建国[1] 刘彩华[1] 于心玉[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：《化学通报》2006年第6期410-414,共5页Chemistry

基　　金：上海科学技术发展基金资助项目(03DJ14005)

摘　　要：研究了HY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、HY分子筛用量等因素对酚与醛(酮)反应的影响。实验发现,当邻苯二酚与醛(酮)摩尔比为1∶1.0、催化剂用量为每mol邻苯二酚2.5g、反应4h,选择性一般在97%以上,醛(酮)的转化率一般在57%以上,表明HY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 HY zeolite as catalyst were studied. Effect of reaction time, mole ratio of reactants and amount of catalyst on yield of benzodioxoles were investigated. The results showed that HY was an efficient catalyst for the acetalization and ketalization with high conversion and selectivity in mild conditions.The optimum reaction condition is. molar ratio of catechol to aldehydes or ketones 1：1.0, catalyst amount 2.5g/1 mol catechol, reaction time 4h. Under those conditions, conversion and selectivity were over 57% and 97% , respectively.

关 键 词：苯并二(噁)茂烷 HY分子筛 缩合 催化 合成 

分 类 号：O643.3[理学—物理化学] O626[理学—化学]