文献类型：期刊文献

中文题名：新型七员环缩醛(酮)的催化合成研究

英文题名：Study on Catalytic Synthesis of Novel Seven-member-ring Acetals(Ketals)

作者：沈建民[1];郭英雪[1];徐凯锋[1];梁学正[2]

机构：[1]绍兴文理学院应用化学研究所;[2]华东师范大学绿色化学的重点实验室

年份：2010

期号：1

起止页码：32

中文期刊名：化工时刊

外文期刊名：Chemical Industry Times

基金：绍兴医药化工重点实验室项目

语种：中文

中文关键词：HMCM-22;七员环;缩醛(酮);1,4-丁二醇合成催化

外文关键词：HMCM - 22 Seven - member - ring acetal ketal 1,4 - butadiol synthesis catalysis

中文摘要：研究了在HMCM-22沸石分子筛催化下,1,4-丁二醇与环己酮、丁酮、丙酮、丙醛、丁醛、异丁醛、戊醛、异戊醛、正辛醛、苯甲醛等10余种醛(酮)的缩合反应合成新型七员环缩醛。系统考察了反应时间、醛(酮)与醇的配比、HMCM-22沸石的用量及催化剂重复使用等因素对反应的影响,优化了反应条件。结果表明,当醛(酮)与1,4-丁二醇物质的量比为1∶1.5,催化剂用量为5 g/1 mol醛(酮),反应2 h,转化率一般可达95%以上,选择性一般可达95%以上。证明HMCM-22沸石分子筛对该缩合反应有较好的催化活性和选择性。

外文摘要：The acetalization and ketalization of various aldehydes and ketones with 1,4 - butadiol by using HM- CM -22 as catalyst were studied. Effect of reaction time, mole ratio of reactants and amount of catalyst on yield of Acetals （acetals） were investigated. Results showed that HMCM -22 was an efficient catalyst for the acetalization and ketalization with high conversion and selectivity in mild conditions. The best reaction condition： molar ratio of aldehydes and ketones to 1,4 - butadiol was 1：1.5 ,catalyst amount was 5 g/l mol aldehydes or ketones ,reaction time was 2 h. Under these conditions, conversion was over 95% and selectivity was over 95%.