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Titolo:
para-Selective t-butylation of phenol over mesoporous H-AlMCM-41
Autore:
Sakthivel, A; Badamali, SK; Selvam, P;
Indirizzi:
Indian Inst Technol, Dept Chem, Bombay 400076, Maharashtra, India Indian Inst Technol Bombay Maharashtra India 400076 6, Maharashtra, India
Titolo Testata:
MICROPOROUS AND MESOPOROUS MATERIALS
fascicolo: 3, volume: 39, anno: 2000,
pagine: 457 - 463
SICI:
1387-1811(200010)39:3<457:PTOPOM>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOLECULAR-SIEVES; ALKYLATION; CATALYSTS; ACIDITY; MCM-41;
Keywords:
mesoporous molecular sieves; H-AlMCM-41; butylation of phenol; p-t-butyl phenol;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
44
Recensione:
Indirizzi per estratti:
Indirizzo: Selvam, P Indian Inst Technol, Dept Chem, Bombay 400076, Maharashtra, India Indian Inst Technol Bombay Maharashtra India 400076 htra, India
Citazione:
A. Sakthivel et al., "para-Selective t-butylation of phenol over mesoporous H-AlMCM-41", MICROP M M, 39(3), 2000, pp. 457-463

Abstract

Vapour phase alkylation of phenol with t-butyl alcohol (2-methyl-2-propanol) was carried out over mesoporous H-AlMCM-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 decreasein phenol-to-t-butyl. alcohol ratio, the catalytic activity decreases withtime-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. (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 08:37:04