GaAlCl(x)-grafted Mont.K-10 clay: highly active and stable solid catalyst for the friedel-crafts type benzylation and acylation reactions
| Title | GaAlCl(x)-grafted Mont.K-10 clay: highly active and stable solid catalyst for the friedel-crafts type benzylation and acylation reactions |
| Publication Type | Journal Article |
| Year of Publication | 2008 |
| Authors | Choudhary, VR, Jha, R |
| Journal | Catalysis Communications |
| Volume | 9 |
| Issue | 6 |
| Pagination | 1101-1105 |
| Date Published | MAR |
| Type of Article | Article |
| ISSN | 1566-7367 |
| Keywords | benzoylation of aromatics, benzylation of aromatics, GaAlCl(x)-grafted Mont.K-10 |
| Abstract | A liquid phase reaction of anhydrous GaCl(3) and AlCl(3) with the surface hydroxyl groups (with HCl evolution) of Mont. K-10 clay in dry CCL(4) under reflux resulted in a novel GaAlCl(x),-grafted Mont.K-10 catalyst [with Cl/(Ga + Al) = 1]. The catalyst showed high activity and stability in the Freidel-Crafts type benzylation and benzoylation (by benzyl chloride and benzoyl chloride, respectively) of benzene, naphthalene and substituted benzenes, even in the presence of moisture. It also showed good activity for the benzoylation of nitrobenzene (i.e. even in the presence of strong electron withdrawing group, like nitro group, attached to the benzene ring). The catalytically active surface species in the catalyst are -(O)(2)-Ga(or Al)Cl. (c) 2007 Elsevier B.V. All rights reserved. |
| DOI | 10.1016/j.catcom.2007.10.014 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 3.389 |