| 超临界二氧化碳中PdCl2/聚苯乙烯负载苯酚共催化缩醛化反应 |
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| 引用本文： | 汪朝阳,江焕峰,戚朝荣,申艳霞,杨少容,曾育才.超临界二氧化碳中PdCl2/聚苯乙烯负载苯酚共催化缩醛化反应[J].催化学报,2007,28(7):607-610. |
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| 作者姓名： | 汪朝阳 江焕峰 戚朝荣 申艳霞 杨少容 曾育才 |
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| 作者单位： | 华南理工大学化学科学学院,广东广州,510640;华南师范大学化学与环境学院化学系,广东广州,510006;华南理工大学化学科学学院,广东广州,510640 |
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| 基金项目： | 国家自然科学基金(20332030,20572027和20625205)，华南理工大学自然科学青年基金. |
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| 摘 要： | 在超临界二氧化碳中和氧气存在的条件下,将PdCl2/高分子聚苯乙烯负载苯酚(PS-Phenol)共催化剂成功地应用于丙烯酸甲酯与甲醇的缩醛化反应中.当丙烯酸甲酯全部转化时,缩醛化产物3,3-二甲氧基丙酸甲酯的最佳产率和选择性分别为97.7%和100%.与小分子酸性助催化剂相比,PS-Phenol可以通过简单的过滤分离而循环再利用,这有利于贵金属钯的分离与回收.
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| 关 键 词： | 氯化钯 聚苯乙烯 负载催化剂 苯酚 丙烯酸甲酯 甲醇 缩醛化 3 3-二甲氧基丙酸甲酯 超临界二氧化碳 |
| 文章编号： | 0253-9837（2007）07-0607-04 |
| 修稿时间： | 2006-12-20 |
PdCl2/PS-Phenol Co-catalyzed Acetalization of Methyl Acrylate with Methanol in Supercritical Carbon Dioxide |
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| WANG Zhaoyang,JIANG Huanfeng,QI Chaorong,SHEN Yanxia,YANG Shaorong,ZENG Yucai.PdCl2/PS-Phenol Co-catalyzed Acetalization of Methyl Acrylate with Methanol in Supercritical Carbon Dioxide[J].Chinese Journal of Catalysis,2007,28(7):607-610. |
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| Authors: | WANG Zhaoyang JIANG Huanfeng QI Chaorong SHEN Yanxia YANG Shaorong ZENG Yucai |
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| Institution: | 1 College of Chemistry, South China University of Technology, Guangzhou 510640, Guangdong , China 2 Department of Chemistry, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, Guangdong , China |
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| Abstract: | PdCl2/polystyrene-supported phenol(PS-Phenol) was presented as a co-catalyst for the acetalization of methyl acrylate with methanol in supercritical carbon dioxide under oxygen atmosphere.After methyl acrylate was completely converted, the highest yield and selectivity for methyl 3,3-dimethoxypropanoate were 97.7% and 100%,respectively.Compared with small molecular acidic co-catalysts,the separation of PS-Phenol from the reaction system by simple filtration made the recycling of precious palladium practical and convenient. |
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| Keywords: | palladium chloride polystyrene supported catalyst phenol methyl acrylate methanol acetalization methyl 3 3-dimethoxypropanoate supercritical carbon dioxide |
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