A. , Sakthivel and S.K. , Badamali and P, Selvam (2000) para-Selective t-butylation of phenol over mesoporous H-AlMCM-41. Microporous and Mesoporous Materials, 39 . pp. 457-463.
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Abstract
Vapour phase alkylation of phenol with t-butyl alcohol (2-methyl-2-propanol) was carried out over mesoporous HAlMCM- 41 in the temperature range 448)498 K. In this reaction, p-t-butyl phenol was obtained as a major product with high selectivity. While the phenol conversion increases with a decrease in phenol-to-t-butyl alcohol ratio, the catalytic activity decreases with time-on-stream due to deactivation of the catalyst. At higher temperatures, both the ortho- and para-isomers, viz., o-t-butyl phenol and p-t-butyl phenol, undergoes isomerization leading to m-t-butyl phenol.
Item Type: | Article |
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Subjects: | Science > Chemistry |
ID Code: | 255 |
Deposited By: | INVALID USER |
Deposited On: | 28 Feb 2007 19:16 |
Last Modified: | 28 Feb 2007 19:16 |
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