Molecules 2006, 11(4), 263-271; doi:10.3390/11040263
Article

ZrOCl2·8H2O: An Efficient, Cheap and Reusable Catalyst for the Esterification of Acrylic Acid and Other Carboxylic Acids with Equimolar Amounts of Alcohols

Hong-Bin Sun 1 , Ruimao Hua 1,* email and Yingwu Yin 2
1 Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Beijing 100084, China 2 Key Laboratory of Bioorganic Phosphorus Chemistry of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China
* Author to whom correspondence should be addressed.
Received: 20 January 2006 / Accepted: 9 April 2006 / Published: 10 April 2006
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Abstract: Esterifications of carboxylic acids with equimolar amount of alcohols could beefficiently catalyzed by ZrOCl2·8H2O. Acrylate esters were obtained in good yields undersolvent-free conditions at ambient temperature. The esterification of other carboxylicacids with alcohols also proceeded at ambient temperature or at 50 oC to afford esters inhigh yields. If the esterification was performed in toluene under azeotropic refluxconditions to remove water, both the catalytic activity of ZrOCl2·8H2O and the rate ofesterification could be increased greatly. Furthermore, in the present catalytic system, theesters could be easily separated from the reaction mixtures and the catalyst could beeasily recovered and reused.
Keywords: Esterification; acrylic acid; carboxylic acid; alcohol; zirconium (IV) dichloride oxide hydrate.

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MDPI and ACS Style

Sun, H.-B.; Hua, R.; Yin, Y. ZrOCl2·8H2O: An Efficient, Cheap and Reusable Catalyst for the Esterification of Acrylic Acid and Other Carboxylic Acids with Equimolar Amounts of Alcohols. Molecules 2006, 11, 263-271.

AMA Style

Sun H-B, Hua R, Yin Y. ZrOCl2·8H2O: An Efficient, Cheap and Reusable Catalyst for the Esterification of Acrylic Acid and Other Carboxylic Acids with Equimolar Amounts of Alcohols. Molecules. 2006; 11(4):263-271.

Chicago/Turabian Style

Sun, Hong-Bin; Hua, Ruimao; Yin, Yingwu. 2006. "ZrOCl2·8H2O: An Efficient, Cheap and Reusable Catalyst for the Esterification of Acrylic Acid and Other Carboxylic Acids with Equimolar Amounts of Alcohols." Molecules 11, no. 4: 263-271.

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