Kinetics and mechanism of the oxidation of aliphatic aldehydes by tetrabutylammonium tribromide

doi:10.1002/KIN.1033

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Kinetics and mechanism of the oxidation of aliphatic aldehydes by tetrabutylammonium tribromide

Published Jun 1, 2001 · M. Baghmar, P. Sharma

International Journal of Chemical Kinetics

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Abstract

The oxidation of six aliphatic aldehydes by tetrabutylammonium tribromide (TBATB) in aqueous acetic acid resulted in the formation of corresponding carboxylic acids. The reaction is first order with respect to TBATB and the aldehydes. The oxidation of deuteriated acetaldehyde (MeCDO) showed the presence of substantial kinetic isotope effect (kH/kD = 5.92 at 298 K). Addition of tetrabutylammonium chloride has no effect on the reaction rate. Tribromide ion has been proposed as the reactive oxidizing species. The rate constants correlate well with Taft's σ* values, the reaction constant being negative. A mechanism involving a hydride-ion transfer from the aldehyde hydrate to the oxidant in the rate-determining step has been suggested. © 2001 John Wiley & Sons, Inc. Int J Chem Kinet 33: 390–395, 2001

Study Snapshot

The oxidation of aliphatic aldehydes by tetrabutylammonium tribromide in aqueous acetic acid leads to the formation of corresponding carboxylic acids, with a hydride-ion transfer from the aldehyde hydrate to

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

Kinetics and mechanism of the oxidation of aliphatic aldehydes by tetrabutylammonium tribromide

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