Acylation of aromatic ethers/phenols
US5637773A · kind A · utility
3Cited by
1References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1995 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | Aug 24, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/46
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Aromatic ethers/phenols are acylated, characteristically into hydroxy- and/or alkoxyaromatic alkylketones, and in particular, are acylated in the para-position relative to an alkoxy substituent borne by the aromatic nucleus, by reacting/condensing same with an acylation agent, for example acetyl chloride or acetic anhydride, in the presence of a catalytically effective amount of a bismuth halide, or a precursor compound that generates, in situ, a bismuth halide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.