Method for acylating a naphthalene compound
US4868338A · kind A · utility
5Cited by
1References
8Claims
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Key dates
| Filing date | Mar 8, 1988 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Mar 8, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C49/84
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The acylation of a naphthalene compound, substituted in the 2-position with an electron-donating group, with a reactive derivative of a lower aliphatic acid, in an aprotic organic diluent and in the presence of a Friedel Crafts catalyst consisting of a halide of an element having at least two valences, is improved when maintaining constant at any time the molar ratio of the naphthalene compound to the acylating agent and that of the acylating agent to the Friedel Crafts catalyst within specific ranges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.