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7750611 
Journal Article 
Micellar effect on the kinetics of acid catalysed bromination of some aromatic ketones 
Panigrahi, AK; Misra, S; Patra, M; Sinha, BK 
1999 
Yes 
Journal of the Indian Chemical Society
ISSN: 0019-4522 
76 
8 
395-398 
English 
WOS:000082213900007 
The effect of anionic surfactant sodium dodecyl sulphate (SDS) on the kinetics of bromination of acetophenone and two para-substituted acetophenones (4-X-C6H4COCH3, X = H, Cl, OMe) has been studied using bromine solution in 87% acetic acid at 35-50. The concentration of SDS is varied and maintained beyond its critical micellar concentration. Perchloric acid has been used to catalyse the bromination and the reaction performed at a constant ionic strength using sodium perchlorate. The rate accelerates on increasing the concentration of SDS, HClO4 and temperature following the sequence : p-chloro < unsubstituted < p-methoxy-acetophenone. The thermodynamic parameters for the reaction have been evaluated.