Selective C-methylation of phenol with methanol over transition metals modified mesoporous ceria catalystsJournal: Journal of Advances in Chemistry (Vol.3, No. 3)
Publication Date: 2013-08-25
Authors : Rose Philo K.J; Sugunan S;
Page : 213-221
Keywords : Mesoporous ceria; C-alkylation; ortho alkylated products; Kinetic order; Frequency factor;
The demand for selective catalysts with larger molecular dimensions led to the discovery of mesoporous catalytic materials. We report herein the development of an environmentally friendly process for C-methylation of phenol derivatives with methanol using mesoporous ceria modified with transition metals. Selective C-methylation of phenol, has been investigated over transition metals loaded mesoporous ceria. Catalyst reaction rates at various reaction parameters were also investigated. 98% selectivity for ortho-alkylated products (o-cresol and 2, 6-xylenol) was obtained. The reaction is proved to be first order with phenol conversion. The frequency factor A and the activation energy Ea were also evaluated with (CeFe10%) catalyst.
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