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3830858 
Journal Article 
Synthesis of p-cresylpropionate over M (n+)-montmorillonite catalysts: aspect of catalyst solvent interactions by DRIFTS study 
Reddy, CR; Ramesh, S; Bhat, YS; Nagendrappa, G; Prakash, B 
2010 
1 
Reaction Kinetics, Mechanisms and Catalysis
ISSN: 1878-5190 
SPRINGER 
DORDRECHT 
100 
2 
289-300 
WOS:000279317400004 
Different metal ion-exchanged montmorillonite based clay catalysts (M (n+)-mont; M (n+) = Al3+, Fe3+, Cr3+, Zn2+, Ni2+, Mn2+, Cu2+ and H+) were prepared and characterized by various physico-chemical techniques. The clay catalysts were evaluated for the esterification of propionic acid with p-cresol. Our DRIFTS (Diffuse Reflectance Infrared Fourier Transform Spectroscopy) study of the catalysts treated with propionic acid supported the very well established mechanism of esterification. Furthermore, the esterification was conducted in the presence of different solvents such as benzene, toluene, o-xylene and 1,4-dioxane. Interestingly, the reaction carried out in the presence of 1,4-dioxane did not yield any product. The role played by this specific solvent in preventing the formation of ester product has been investigated by DRIFTS study involving catalyst and solvent interaction. 
Montmorillonite; DRIFTS; Esterification; 1,4-Dioxane 
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