title: Enhanced nucleophilic reactivity of hydroxamate ions in some novel micellar systems for the cleavage of parathion.
abstract: The reactivity of three alpha-nucleophiles, i.e. N-phenylbenzohydroxamate, benzohydroxamate and salicylhydroxamate ions towards cleavage of p-nitrophenyldiethyl phosphorothioate (Parathion) is considerably enhanced in the presence of cationic surfactant, i.e. cetyltrimethylammonium bromide. The esterolytic properties of N-phenylbenzohydroxamate ion for parathion have also been examined in two novel surfactants, viz. cetyltriphenylphosphonium bromide and cetyldimethyl ethanol ammonium bromide. The cetyldimethyl ethanol ammonium bromide is more reactive. The rate-surfactant profiles have been fitted with pseudophase model.
authors.affiliation: School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India. kallolkghosh@yahoo.com
authors.forename: Kallol K
authors.initials: KK
authors.lastname: Ghosh
authors.forename: Daliya
authors.initials: D
authors.lastname: Sinha
authors.forename: Manmohan L
authors.initials: ML
authors.lastname: Satnami
authors.forename: D K
authors.initials: DK
authors.lastname: Dubey
authors.forename: A
authors.initials: A
authors.lastname: Shrivastava
authors.forename: Rama M
authors.initials: RM
authors.lastname: Palepu
authors.forename: P R
authors.initials: PR
authors.lastname: Dafonte
mesh_terms: D002412:Cations; D000077286:Cetrimonium; D002593:Cetrimonium Compounds / Q000737:chemistry; D006877:Hydroxamic Acids / Q000737:chemistry*; D007306:Insecticides / Q000737:chemistry*; D008823:Micelles; D015394:Molecular Structure; D010278:Parathion / Q000737:chemistry*; D013501:Surface-Active Agents / Q000737:chemistry*
chemical_list: D002412:Cations; D002593:Cetrimonium Compounds; D006877:Hydroxamic Acids; D007306:Insecticides; D008823:Micelles; D013501:Surface-Active Agents; D010278:Parathion; D000077286:Cetrimonium