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Effects of reactive and non‐reactive counterion surfactants upon acid hydrolysis of hydroxamic acids
Author(s) -
Ghosh Kallol K.,
Pandey Alka,
Roy Supriya
Publication year - 1999
Publication title -
journal of physical organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 66
eISSN - 1099-1395
pISSN - 0894-3230
DOI - 10.1002/(sici)1099-1395(199906)12:6<493::aid-poc152>3.0.co;2-g
Subject(s) - chemistry , counterion , hydrolysis , organic chemistry , reactive intermediate , hydroxamic acid , ion , catalysis
Rates of acidic hydrolysis of hydroxamic acids of the type RCON(OH)R′ (R = CH 3 , R′ = H, acetohydroxamic acid; R = C 6 H 5 , R′ = H, benzohydroxamic acid; R = C 6 H 5 , R′ = C 6 H 5 , N ‐phenylbenzohydroxamic acid) were determined in perfluorooctanoic acid as a reactive counterion surfactant and also with sodium 1‐dodecanesulphonate and sodium dodecyl sulphate. The pseudo‐first‐order rate constants increase with reactive and non‐reactive surfactant concentrations. These kinetic results were explained by means of the pseudo‐phase ion‐exchange kinetic model. Activation parameters were also determined. Copyright © 1999 John Wiley & Sons, Ltd.