Process for the acylation of aromatic compounds using a reusable solid catalyst comprising indium halide
US6437191B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2000 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Nov 28, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the liquid phase acylation of aromatic compounds by acyl halides to corresponding acylated aromatic compounds, using a reusable solid catalyst comprising indium halide represented by a formula:MxIn1−xAy(a)/swherein,S is a porous catalyst support selected from clays, zeolites and zeolite-like materials;M is a metallic chemical element(s) selected from the group consisting of Ga (gallium), Fe (iron), Zn (zinc), Ti (titanium) and a mixture of two or more thereof;In is a metallic chemical element, indium;A is a non-metallic chemical element selected from the group consisting of Cl (chlorine), Br (bromine), I (iodine), F (fluorine) and a mixture of two or more thereof;is mole fraction of M in the metallic elements in the range from 0.01 to 0.99;y is the number of A atoms required to satisfy the valence requirement of MxIn1−x; anda is the loading of MxIn1−x A on the support, S, in the range from 0.05 mmol.g−1 to 5.0 mmol.g−1,at the following reaction conditions: weight ratio of catalyst to acylating agent in the range trom about 0.05 to about 5.0; mole ratio of aromatic compound to acylating agent in the range from about 0.1 to about 100; weigh…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.