53496-34-7Relevant academic research and scientific papers
Kinetics and Mechanism of Oxidation of Unsaturated Alcohols by Chloramine-T in Sulphuric Acid Medium
Naidu, H. M. K.,Katgeri, S. N.,Mahadevappa, D. S.
, p. 880 - 882 (2007/10/02)
The kinetics of oxidation of allyl, crotyl and cinnamic alcohols by chloramine-T (CAT) in H2SO4 leads to a simple rate law, k-1 at 40 deg C.Added sulphate ions catalyze the reaction.An order dependence of -0.3 on the gross is noticed, indicating a mixed order kinetics with simultaneous catalysis by H(+) and SO4(2-) ions.Ionic strength and added reaction product (p-toluenesulphonamide) have no effect on the rate.A suitable mechanism is proposed.
Osmium(VIII)-catalysed Reactions of Allyl and Crotyl Alcohols with Chloramine-T, Chloramine-B, Bromamine-T and Bromamine-B: Kinetics and Mechanism of Formation of Halohydrins in Alkaline Medium
Naidu, H. M. K.,Yamuna, B.,Mahadevappa, D. S.
, p. 114 - 117 (2007/10/02)
Kinetivs of reaction of allyl and crotyl alkohols with chloramine-T, chloramine-B, bromamine-T and bromamine-B-in alkaline medium in the presence of OsO4 catalyst at 40 deg C have been studied.The rate shows first order dependence in , and inverse fractional order in .The added sulphonamide and varying the ionic strength of the medium have no effect on the rate.However, the rate decreases with increase in methanol content of the reaction medium.All these observations show that neutral species are involved in rate-determing step.A mechanism in which the hypohalous acids are formed in the rate-determing step, which react with the alcohols in a fast step has been proposed.The decrease in rate in D2O (solvent isotope effect) support the proposed mechanism.
