Bulletin of the Chemical Society of Japan · 1980 · 53 citations · 14 references
Natural SciencesChemistryCatalysisEnzyme MechanismOrganic ChemistryCatalytic MechanismsHeterocyclic ChemistryOrganic SynthesisBrønsted Acid CatalysisBrønsted AcidityCarbocation MechanismsCatalyst DevelopmentCatalytic Reaction MechanismsFriedel-crafts Acylation
Abstract 12-Heteropolymolybdic acid, a heteropolyacid of Keggin-structure, behaves as an effective catalyst of the Friedel-Crafts-type reactions for aromatic compounds, such as alkylation by benzyl chloride and t-butyl chloride, acylation by acetyl chloride, and sulfonylation by tosyl chloride. The catalyst mainly gives para-substituted products for phenol and anisole. The reactions proceed via carbocation-generation mechanism brought about by the strong Brønsted acid.
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