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8183803 
Journal Article 
Solvent-free esterification of substituted benzoic acids with alcohols using modified montmorillonite K10 as solid acid catalyst 
Kalita, C; Bharadwaj, SK; Saikia, P 
2020 
International Journal of Scientific and Technology Research 
9 
2 
658-661 
English 
The easily available Montmorillonite K10 clay is activated with orthophosphoric acid. It has been found that the surface of t he clay become more acidic after treating with the orthophosphoric acid. This has been used for esterification of substituted benzoic acids with different alcohols. Benzoic acids having both electron donating and withdrawing groups undergo smooth reaction and provide higher yields with methanol and benzyl alcohol. No solvent and mineral acids have been used in this reported protocol. © 2020 IJSTR. 
Alcohol; Benzoic acid; Esterification; Montmorillonite K10; Solid acid catalyst