alexa Abstract | Micellar effects on the kinetics and mechanism of Vilsmeier-Haack cyclisation reactions with acetanilides in nonaqueous solvents

Journal of Chemical and Pharmaceutical Research
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Abstract

Vilsmeier-Haack Reaction with Acetanilides afforded formyl derivatives with DMF/SOCl2. The reactions obeyed pseudo first order kinetics. There was a dramatic rate enhancement when micelle-forming surfactants such as cetyl tri methyl ammonium bromide (CTAB), sodium dodecyl sulphate (SDS) and triton-X 100 (Tx) were used as catalysts. Rate (kΨ) versus [Surfactant or CD] profiles was generally wavy in nature with all the surfactant systems. The results in micellar media were interpreted using Pizkiewicz’s cooperativity model

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Author(s): R Roopa Ramchander Merugu and Rajanna K C

Keywords

Vilsmeier-Haack Reaction, Acetanilides, formyl derivatives, Vilsmeier-Haack cyclisation

 
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