微波辐射活性炭负载杂多酸催化合成乙酰乙酸乙酯缩酮 Synthesis of ketals of ethyl acetoacetate catalyzed by active carbon supported heteropoly acid under microwave irradiation期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

微波辐射活性炭负载杂多酸催化合成乙酰乙酸乙酯缩酮

引用本文：	袁先友,张敏,阳年发,刘跃进.微波辐射活性炭负载杂多酸催化合成乙酰乙酸乙酯缩酮[J].日用化学工业,2005,35(3):201-203.

作者姓名：	袁先友张敏阳年发刘跃进

作者单位：	1. 湘潭大学,化学化工学院,湖南,湘潭,411105;湖南科技学院,化学系,湖南,永州,425006 2. 湖南科技学院,化学系,湖南,永州,425006 3. 湘潭大学,化学化工学院,湖南,湘潭,411105

基金项目：	湖南省教育厅重点资助项目(02A042)

摘要：	在微波辐射下，以活性炭负载磷钨酸(HPW／C)和硅钨酸(HSW／C)为催化剂，不用溶剂，合成了乙酰乙酸乙酯乙二醇缩酮和乙酰乙酸乙酯1,2-丙二醇缩酮。以HPW／C催化乙酰乙酸乙酯与乙二醇缩合为模型反应进行优化，优化反应条件：负载量为23．6％的HPW／C催化剂0．4g，乙酰乙酸乙酯10mL，乙二醇10mL，微波辐射功率600W，辐射时间3min，产率达70．7％。产物经过红外光谱表征。
关键词：	香料乙酰乙酸乙酯缩酮合成
文章编号：	1001-1803(2005)03-0201-03
修稿时间：	2004年12月30
Synthesis of ketals of ethyl acetoacetate catalyzed by active carbon supported heteropoly acid under microwave irradiation

YUAN Xian-you,ZHANG Min,YANG Nian-fa,LIU Yue-jin.Synthesis of ketals of ethyl acetoacetate catalyzed by active carbon supported heteropoly acid under microwave irradiation[J].China Surfactant Detergent & Cosmetics,2005,35(3):201-203.

Authors:	YUAN Xian-you ZHANG Min YANG Nian-fa LIU Yue-jin

Affiliation:	YUAN Xian-you~

Abstract:	Two kinds of ketal were synthesized from ethyl acetoacetate with ethylene glycol and 1,2-propanediol using active carbon supported phosphotungstic acid(HPW/C) and active carbon supported silicotungstic acid(HSW/C) as catalysts and under microwave irradiation.No solvent was used.Under the optimum reaction conditions(HPW/C(loaded amount 23.6 %) (0.4 g), ethyl acetoacetate (10 mL), ethylene glycol (10 mL), microwave power (600 W), microwave irradiation time (3 min)), the yield of ketals was (70.7 %). The products were characterized by IR.

Keywords:	essence ethyl acetoacetate ketal synthesis
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