The author of 《Green synthesis of methyl salicylate using novel sulfated iron oxide-zirconia catalyst》 were Molleti, Jayaram; Yadav, Ganapati D.. And the article was published in Clean Technologies and Environmental Policy in 2019. Product Details of 119-36-8 The author mentioned the following in the article:
Esters of salicylic acid are in demand for the synthesis of drugs, food preservatives, pharmaceuticals, perfumes and solvents. A novel sulfated Fe2O3-ZrO2 catalyst with different iron loadings was prepared by the combustion technique and used in the preparation of Me salicylate from salicylic acid and di-Me carbonate. This process is a viable and safe substitute to other esterification processes, involving harmful alkylating agents and chems. The activity of sulfated Fe2O3-ZrO2 was evaluated for the esterification of salicylic acid with di-Me carbonate. No solvent was used and hence the quality of the product was excellent. The product Me salicylate is extensively used in the food and pharma industries. Catalysts with different loadings of iron on zirconia (5, 10, 15, 20 weight%) were synthesized, and their activities evaluated vis-a-́vis ZrO2 and sulfated zirconia. The catalysts were characterized using SEM, XRD, FTIR, TGA, NH3-TPD and BET surface area anal. The activity of the catalysts increases after the loading of iron on zirconia and 10 weight% sulfated Fe2O3-ZrO2 gave the highest acidity and activity for the synthesis of Me salicylate. The effect of various kinetic parameters on the rate of esterification of salicylic acid was studied. The optimum conditions for 99% conversion of salicylic acid with 100% selectivity was 120 °C after 150 min at a 1:10 molar ratio of salicylic acid to di-Me carbonate and catalyst loading of 0.03 g/cm3. The reaction mechanism and kinetics were studied. The activation energy for this reaction was found to be 13.82 kcal/mol.Methyl Salicylate(cas: 119-36-8Product Details of 119-36-8) was used in this study.
Methyl Salicylate(cas: 119-36-8) is a natural herbivore-induced plant volatile. It is a naturally occurring product in trees, legumes, exotic plants, vegetables, berries, and the primary constituent of the oil of wintergreen.Methyl Salicylate is produced from salicylic acid.Product Details of 119-36-8
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics