Process for the production of acylated 1,3-dicarbonyl compounds
US4695673A · kind A · utility
56Cited by
7References
49Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1986 |
| Grant date | Sep 22, 1987 |
| Priority date | — |
| Expiry date | Jun 9, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An acylated 1,3-dicarbonyl compound is produced by rearrangement of the corresponding enol ester in the presence of a cyanide source. In one embodiment the cyanide source is employed with a molar excess of a moderate base, with respect to the enol ester. In another embodiment, the cyanide source is a stoichiometric amount, with respect to the enol ester, of potassium or lithium cyanide and a catalytic amount of a crown ether is used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.