Process for the manufacture of aromatic 1,3-diketones
US3937737A · kind A · utility
19Cited by
2References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 22, 1974 |
| Grant date | Feb 10, 1976 |
| Priority date | — |
| Expiry date | Jul 22, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C49/80
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Aromatic 1,3-diketones are produced by reacting aromatic compounds with acetoacetyl fluoride optionally substituted in .gamma.-position by fluorine, chlorine and/or bromine, in hydrofluoric acid of at least 90% strength at a temperature of from about -40 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 metal extracting agents, solution intermediaries and solvents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.