Kinetics of oxidation of Thiomalic acid by Quinaldinium fluorochromate
نویسندگان
چکیده
The kinetics of oxidation of thiomalic acid by quinaldinium fluorochromate(QnFC) has been studied in non aqueous medium. The oxidation kinetics was followed photoelectric colorimetrically in the temperature range of 30°C–60°C. The reaction shows unit order dependence each with respect to substrate and oxidant. The reaction is catalyzed by hydrogen ions. The hydrogen ion dependence takes in the form kobs = a + b [H ]. The reaction rate decreases with increasing the concentration of Mn ions. The reaction does not induce the polymerization of acrylonitrile. A plausible mechanism has been proposed in the formation of a thio ester and its decomposition which occurs in the slow step.
منابع مشابه
Reactivity of Cyclanols Towards Quinaldinium Fluorochromate Oxidation
The kinetics of oxidation of cyclanols, viz., cyclohexanol, cyclopentanol, cycloheptanol and cyclooctanol by quinaldinium fluorochromate has been studied in aqueous acid medium at 313 K (±0.1 K). The cyclanols were converted to the corresponding cyclic ketones. The order of reaction was found to be one with respect to oxidant and fractional with respect to the substrate and hydrogen ion concent...
متن کاملThe Kinetics of Tripropylammonium Fluorochromate Oxidation of Mandelic Acids
The oxidation of Mandelic Acids (MA) to the corresponding oxoacids with tripropylammonium fluorochromate (TriPAFC) in aqueous acetic acid has been studied. The reaction is first order with respect to [TriPAFC], [MA] and [H+]. The oxidation of α-deuteriomandelic acid shows the presence of a primary ki...
متن کاملKinetics and Mechanism of Oxidation of n-Pentanol by Tetramethylammonium Fluorochromate
The oxidation of n-pentanol by tetramethylammonium fluorochromate in acidic solution wasstudied using spectrophotometric technique. The reaction was arranged to be under pseudo firstorderconditions respect to the oxidant. A Michaelis-Menten type kinetic was observed respect tothe substrate. The reaction is catalyzed by hydrogen ions. Dependences of the reaction rates ontemperature and different...
متن کاملKinetics of Oxidation of Allyl Alcohol by Cr(VI)
The kinetics of oxidation of allyl alcohol by quinaldinium chlorochromate is investigated in 40 % acetic acid – water (v/v) medium. The order with respect to oxidant and hydrogen ion concentration is found to be one and fractional with respect to substrate. The rate of the reaction is decreases with the decrease in the dielectric constant of the medium. The rate of the reaction has negligible e...
متن کاملTripropylammonium Fluorochromate Oxidation of 2-Methyl-1-Propanol In Acid Medium: A Kinetic Study
1 P.G Dept. of Chemistry, Sir Sayyed College, Aurangabad, 431001, India. 2 Raje Shivaji College, Bajaj nagar, Waluj, Aurangabad, 431001, India. __________________________________________________________________________________________ Abstract: The Kinetics of oxidation of 2-methyl-1-propanol by tripropylammonium fluorochromate {TPAFC} has been studied Spectrophotometrically catalyzed by Sulphu...
متن کامل