Journal of Surface Science and Technology

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Micellar Effect on the Hydrolysis of Imines, Kinetics and Mechanism of Alkaline Hydrolysis of N-Salicylidene-2-Amino Thiazole and N-salicylidene-2-Aminopyridine in the Presence of Cetyl Trimethyl Ammonium Bromide


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1 Department of Chemistry, Utkal University, Bhubaneshwar-751 004, India
     

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The effect of cetyl trimethyl ammonium bromide on the kinetics of base hydrolysis of the title schiff bases was investigated in 5% v/v methanol-water medium at 35°C, 0.0002 ≤ (CTAB)T ≤ 0.02 mol dm-1, and 0.01 ≤ [OH]T ≤ 0.07 mol dm-3 (I=01 mol dm-3). The imine anions bound to the CTAB micelle are observed to undergo hydrolysis at rates much slower than in the aqueous pseudo phase. This indirectly supports our earlier conclusion that the hydrolysis of these anions involve participation of the intramolecular general base catalysis of the phenoxide group.
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  • Micellar Effect on the Hydrolysis of Imines, Kinetics and Mechanism of Alkaline Hydrolysis of N-Salicylidene-2-Amino Thiazole and N-salicylidene-2-Aminopyridine in the Presence of Cetyl Trimethyl Ammonium Bromide

Abstract Views: 282  |  PDF Views: 0

Authors

Anadi C. Dash
Department of Chemistry, Utkal University, Bhubaneshwar-751 004, India
Bhaskar Dash
Department of Chemistry, Utkal University, Bhubaneshwar-751 004, India
Debraj Panda
Department of Chemistry, Utkal University, Bhubaneshwar-751 004, India

Abstract


The effect of cetyl trimethyl ammonium bromide on the kinetics of base hydrolysis of the title schiff bases was investigated in 5% v/v methanol-water medium at 35°C, 0.0002 ≤ (CTAB)T ≤ 0.02 mol dm-1, and 0.01 ≤ [OH]T ≤ 0.07 mol dm-3 (I=01 mol dm-3). The imine anions bound to the CTAB micelle are observed to undergo hydrolysis at rates much slower than in the aqueous pseudo phase. This indirectly supports our earlier conclusion that the hydrolysis of these anions involve participation of the intramolecular general base catalysis of the phenoxide group.