Oxidative halogenation of aromatic compound
US7084317B2 · kind B2 · utility
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Key dates
| Filing date | Oct 5, 2001 |
| Grant date | Aug 1, 2006 |
| Priority date | — |
| Expiry date | Mar 10, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C41/22
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the halogenation of an aromatic compound wherein the aromatic compound is admixed with a halogenating agent in the presence of an ionic liquid is described. The method in preferably halide, sulfur or nitrate ionic liquids has significant advantages over conventional halogenation reactions. These are that the reaction starts with, e.g., a halide salt rather than, e.g., a halogen, and is therefore more convenient and safer. Also, when the reaction is performed in a nitrate ionic liquid, the only by-product is water.
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