Process for manufacturing heterocyclic compounds
US4658040A · kind A · utility
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Key dates
| Filing date | Sep 29, 1982 |
| Grant date | Apr 14, 1987 |
| Priority date | — |
| Expiry date | Sep 29, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D339/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the manufacture of the heterocyclic compounds of the formula: ##STR1## wherein R is hydrogen, lower alkyl or phenyl, which comprises simultaneously decarboxylating and dinitrating a compound of the formula: ##STR2## wherein R has the meaning stated above, and finally hydrolyzing off the acyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.