Acidic Alkali Metal Salts and Ammonium Salts of Keggin-type Heteropolyacids as Efficient Solid Acid Catalysts for Liquid-phase Friedel-Crafts Reactions
- 1 October 1992
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 21 (10), 1987-1990
- https://doi.org/10.1246/cl.1992.1987
Abstract
Acidic salts of the Keggin-type heteropolytungstic acids prepared through partial neutralization with alkali metal carbonates or ammonium hydroxide had relatively large surface areas, and showed high catalytic efficiency as insoluble solid acid catalysts in Friedel-Crafts alkylation and acylation using benzyl chloride, benzoyl chloride, benzoic anhydride, benzoic acid, acetic anhydride, and acetic acid as electrophiles.Keywords
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