International Journal of Innovative Research and Development

Open Access Open Access  Restricted Access Subscription Access

Kinetic Studies on Oxidation of Ethyl-2-(Methylthio) Pyrimidine 5-Carboxylate by Potassium Dichromate in Aqueous Perchloric Acid Medium


Affiliations
1 Department of Chemistry, Sri Krishna Institute of Technology, Bangalore, Karnataka, India
2 Department of Chemistry, Shri Pillappa College of Engineering, Bangalore, Karnataka, India
 

The kinetic studies on oxidation of Ethyl-2-(methylthio) pyrimidine 5-carboxylate by potassium dichromate in aqueous perchloric acid medium was studied at 26 ± 0.1oC. The reaction shows first order dependence in both Ethyl-2-(methylthio) pyrimidine 5-carboxylate and potassium dichromate which supports the derived rate law and fractional order dependence in perchloric acid. The effect of temperature on the rate of reaction has also been studied and the activation parameters have been evaluated. The reaction constants involved in the mechanism were computed. The stoichiometry of the reaction was found to be 3:2 and the oxidation products were identified as 2-methyl sulfanyl-pyrimidine-5-carboxylic acid and acetaldehyde.


Keywords

Oxidation, Kinetics, Mechanism, Ethyl-2-(Methylthio) Pyrimidine 5-Carboxylate, Potassium Dichromate.
User
Notifications
Font Size

Abstract Views: 155

PDF Views: 6




  • Kinetic Studies on Oxidation of Ethyl-2-(Methylthio) Pyrimidine 5-Carboxylate by Potassium Dichromate in Aqueous Perchloric Acid Medium

Abstract Views: 155  |  PDF Views: 6

Authors

T. N. Padmini
Department of Chemistry, Sri Krishna Institute of Technology, Bangalore, Karnataka, India
M. Manju
Department of Chemistry, Sri Krishna Institute of Technology, Bangalore, Karnataka, India
B. C. Sateesh
Department of Chemistry, Shri Pillappa College of Engineering, Bangalore, Karnataka, India

Abstract


The kinetic studies on oxidation of Ethyl-2-(methylthio) pyrimidine 5-carboxylate by potassium dichromate in aqueous perchloric acid medium was studied at 26 ± 0.1oC. The reaction shows first order dependence in both Ethyl-2-(methylthio) pyrimidine 5-carboxylate and potassium dichromate which supports the derived rate law and fractional order dependence in perchloric acid. The effect of temperature on the rate of reaction has also been studied and the activation parameters have been evaluated. The reaction constants involved in the mechanism were computed. The stoichiometry of the reaction was found to be 3:2 and the oxidation products were identified as 2-methyl sulfanyl-pyrimidine-5-carboxylic acid and acetaldehyde.


Keywords


Oxidation, Kinetics, Mechanism, Ethyl-2-(Methylthio) Pyrimidine 5-Carboxylate, Potassium Dichromate.