Ghosh Kallol K, Sinha Daliya, Satnami Manmohan L, Dubey D K, Shrivastava A, Palepu Rama M, Dafonte P R
School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India.
J Colloid Interface Sci. 2006 Sep 15;301(2):564-8. doi: 10.1016/j.jcis.2006.05.061. Epub 2006 Jun 7.
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.
在阳离子表面活性剂(即十六烷基三甲基溴化铵)存在下,三种α-亲核试剂,即N-苯基苯甲酰氧肟酸、苯甲酰氧肟酸和水杨酰氧肟酸离子对硫代磷酸对硝基苯二乙酯(对硫磷)的裂解反应活性显著增强。还在两种新型表面活性剂,即十六烷基三苯基溴化鏻和十六烷基二甲基乙醇溴化铵中研究了N-苯基苯甲酰氧肟酸离子对对硫磷的酯解性质。十六烷基二甲基乙醇溴化铵的反应活性更高。速率-表面活性剂曲线已用假相模型拟合。