Zirconium Based Ion Exchangers as Catalysts in Esterification Reactions of Benzoic Acid

Charanjit Singh1, Susheel K. Mittal1,* and Navneet Kaur2

1School of Chemistry & Biochemistry, Thapar University, Patiala-147 004, India

2Centre for Nanoscience and Nanotechnology, Panjab University, Chandigarh-160 014, India

*Corresponding author: Fax: +91 175 2364498; E-mail: smittal@thapar.edu

Abstract

Zirconium based double salts were used as catalysts in esterification reactions of benzoic acid with some primary and secondary alcohols. Ester products were characterized with 1H NMR and FT-IR techniques. Product yields from different set of combinations of benzoic acid and alcohols were monitored using gas chromatography. Double salt based ion exchangers selectively catalyzed esterification reactions based on steric considerations. Electronic factor did not seem to play any role in efficiency of the inorganic ion exchangers as heterogeneous catalysts.

Keywords

Heterogeneous catalysis, Zirconium based ion-exchangers, Esterification, Steric orientation, Closed reactor synthesis.

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