Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
52809 | Catalysis Communications | 2006 | 5 Pages |
Abstract
The liquid phase bromination of phenol was carried out using titania pillared zirconium phosphate (ZrP) and titanium phosphate (TiP) as catalysts, KBr as brominating agent and hydrogen peroxide as an oxidant by varying different reaction parameters. With increase in the catalyst concentration and the reaction time, there is an increase in the formation of brominated phenol. But as far as selectivity is concerned, with time it did not follow a definite trend in case of 2-BP and di-BP. But the selectivity of 4-BP increases with time. The reaction proceeds through the formation of Br+ (bromonium ion) which attacks the phenol ring forming different brominated products.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Dipti Prakasini Das, Kulamani Parida,