PdCl2/PS-Phenol Co-catalyzed Acetalization of Methyl Acrylate with Methanol in Supercritical Carbon Dioxide

Chinese Journal of Catalysis ›› 2007, Vol. 28 ›› Issue (7): 607-610.

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PdCl2/PS-Phenol Co-catalyzed Acetalization of Methyl Acrylate with Methanol in Supercritical Carbon Dioxide

WANG Zhaoyang1,2, JIANG Huanfeng1,*, QI Chaorong1, SHEN Yanxia1, YANG Shaorong1, ZENG Yucai1

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

Received:2007-07-25 Online:2007-07-25 Published:2011-07-25

Abstract

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 methyl3,3-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.

Key words: palladium chloride, polystyrene, supported catalyst, phenol, methyl acrylate, methanol, acetalization, methyl3, 3-dimethoxypropanoate, supercritical carbon dioxide

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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PdCl2/PS-Phenol Co-catalyzed Acetalization of Methyl Acrylate with Methanol in Supercritical Carbon Dioxide

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