Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
67484 | Journal of Molecular Catalysis A: Chemical | 2007 | 7 Pages |
Ionic liquids, formed by combining 1 mol of 1-butyl-3-methyl-1H-imidazolium chloride, bmim+-Cl−, with 2 mol of a Group IIIA metal chloride (Al, Ga, In), were examined for toluene carbonylation reactivity to determine the effect for changing the M(III) cation. These ionic liquids were characterized for Brønsted acidity indirectly by 13C NMR of labeled acetone, CH3*COCH3. These results were explained by a mechanism where the Brønsted acidity of the ionic liquid was influenced by the strength of the Lewis acid: M3+Cl3.
Graphical abstractIonic liquids, formed by combining 1 mol of 1-butyl-3-methyl-1H-imidazolium chloride, bmim+-Cl−, with 2 mol of a Group IIIA metal chloride (Al, Ga, In), were examined for toluene carbonylation reactivity to determine the effect for changing the M(III) cation. These ionic liquids were characterized for Brønsted acidity indirectly by 13C NMR of labeled acetone, CH3*COCH3. These results were explained by a mechanism where the Brønsted acidity of the ionic liquid was influenced by the strength of the Lewis acid: M3+Cl3.Figure optionsDownload full-size imageDownload as PowerPoint slide