Scientific journal
Название журнала на английском
ISSN 2500-0802
ПИ №ФС77-61154

Personal portfolio

THE MICROWAVE ACTIVATION IN SYNTHESIS ISOPROPYL ESTER OF ACETIC ACID

Tulepova A.K. 1 Seitova A.A. 1 Shigenova A.S. 1 Narmanova R.A. 1 Tulegenova G.U. 1 Appazov N.O. 1
1 Korkyt Ata Kyzylorda State University
The article proposes the synthesis of isopropyl acetate by direct esterification reaction of acetic acid with isopropyl alcohol under microwave irradiation in the presence of p-toluenesulfonic acid. There were found optimal conditions of conducting process: power of microwave irradiation, the duration of the process, the ratio of the catalyst in reactants’ total weight, the ratio of reactants. There were found that the optimum in conducting the process is the molar ratio of acetic acid: isopropyl alcohol 1:1, the duration – 0,5 min, ratio of the catalyst to the total weight of reactants – 1%, the irradiation power – 900 W. Yield of the desired product under these conditions is almost 100%. The obtained product was identified by means of gas chromato-mass spectrometry and IR spectroscopy. The proposed method for producing isopropyl ester of acetic acid in comparison with the known methods allows to reduce process duration several dozen times. The results can be used for preparing esters of carboxylic acids.