1Chemical Kinetics Laboratory, Department of Chemistry, Pacific University, Udaipur (India)
2Asstt. Prof. of Chemistry, Govt. P. G. College, Neemuch, 458441 M.P. (India)
Email- bkdangarh11@gmail.com
The comparative study of oxidation of alanine and phenyl alanine by pyridiniumdichromate has been studied spectrophotometrically in the presence of perchloric acid in acetic acid-aquo (v/v) medium. The reaction is first order with respect to oxidant and inverse first order in [H+]. The rate of reaction increases with a decrease in the polarity of solvent indicating an ion–dipole interaction in the slow step. The reactions exhibit no primary kinetic isotope effect. The activation parameters have been evaluated. The reaction mechanism involving the formation of chromate-ester between unprotonated PDC and unprotonated amino acid followed by C–C bond fission in the slow step has been suggested.
Copy the following to cite this article:
SAGAR SINGH THAKUR1 and B. K. DANGARH2, "Kinetics and Mechanism of Oxidative Transformation of -amino acid by pyridiniumdichromate in partial aqueous medium", Journal of Ultra Chemistry, Volume 12, Issue 1, Page Number , 2016Copy the following to cite this URL:
SAGAR SINGH THAKUR1 and B. K. DANGARH2, "Kinetics and Mechanism of Oxidative Transformation of -amino acid by pyridiniumdichromate in partial aqueous medium", Journal of Ultra Chemistry, Volume 12, Issue 1, Page Number , 2016Available from: http://journalofchemistry.org/paper/286/