Process for the manufacture of aromatic 1,3-diketones
US4082807A · kind A · utility
10Cited by
2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1975 |
| Grant date | Apr 4, 1978 |
| Priority date | — |
| Expiry date | Jul 30, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/46
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Aromatic 1,3-diketones are produced by reacting aromatic compounds with acetoacetyl fluoride optionally substituted in the .gamma.-position by fluorine, chlorine and/or bromine, in hydrofluoric acid of at least 90% strength at a temperature of from about -40.degree. to +50.degree. C. The products obtained are important starting products and intermediates for the manufacture of dyestuffs, plastics and pharmaceuticals. Furthermore they can be used for the formation of metal complexes and as metal extracting agents, solution intermediaries and solvents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.