1,3-Cyclohexanedione derivatives
US4336202A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 1981 |
| Grant date | Jun 22, 1982 |
| Priority date | — |
| Expiry date | May 18, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D209/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel cyclohexanone derivatives of general formula: ##STR1## (wherein R.sup.1 is a hydrocarbon group of 1 to 15 carbon atoms) and new cyclohexanone derivatives of general formula: ##STR2## (wherein R.sup.1 and R.sup.2 each is a hydrocarbon group of 1 to 15 carbon atoms) are produced by an electrooxidative coupling of 1,3-cyclohexanedione with a vinyl ether of general formula: EQU CH.sub.2 .dbd.CH-O-R.sup.1 (wherein R.sup.1 is as defined above) in the presence or absence of an alcohol of general formula: EQU R.sup.2 OH (wherein R.sup.2 is as defined above). These new cyclohexanone derivatives can be easily converted to N-substituted or unsubstituted-4-oxo-4,5,6,7-tetrahydroindoles, which are of value as intermediates for the production of N-substituted or unsubstituted-4-hydroxyindoles and, thence, to pindolol and its analogs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.