Please use this identifier to cite or link to this item: http://nopr.niscpr.res.in/handle/123456789/41842
Title: Oxidation of diphenylamines by iodate - A kinetic study
Authors: Brahrnaiah, A
Manikyamba, P
Issue Date: Mar-1991
Publisher: NISCAIR-CSIR, India
Abstract: Oxidation of diphenylamines (DPA) by iodate in aqueous methanol (70%, v/v) at 303 K is first order in [oxidant] and fractional order in [DPA] and is acid-catalysed. There is a dipole-dipole interaction between the oxidant and DPA. The substituent effect on the rate of reaction shows that electron- releasing groups on the benzene ring enhance the rate and electron-withdrawing groups retard the rate compared to the unsubstituted DPA. The product identified is the corresponding carbazole. Thermodynamic parameters are calculated and a suitable mechanism is proposed.
Page(s): 247-251
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.30A(03) [March 1991]

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