US3023210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of carboxy-substituted heterocyclic compounds
Assignee: Henkel AG and Co KGaA
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Filing: 1958-09-11
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Granted: 1962-02-27
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Expires: 1978-09-11
Abstract
No abstract record available.
Inventors
- 👤 Schutt Hartwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:20
CPC Classifications
C; C07; C07D; C07D241/00; C07D241/02; C07D241/10; C07D241/14; C07D241/24; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D233/00; C07D233/54; C07D233/66; C07D233/90; C07D249/00; C07D249/02; C07D249/08; C07D249/10; C07D249/14; C07D257/00; C07D257/02; C07D257/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
THE PROCESS OF PRODUCING ALKALI METAL SALTS OF CAR BOXY-SUBSTITUTED HETEROCYCLIC COMPOUNDS BY DIRECT INTRODUCTION OF A CARBOZYL GROUP ON A CARBON ATOM OF THE HETEROCYCLIC RING, WHICH COMPRISES REACTING A HETEROCYCLIC COMPOUNND SELECTED FROM THE GROUP CONSISTING OF INDAZOLE, IMIDAZOLE, PYRAZOLE, 1,2,4-TRIAZOLE,1,2,3-TRIAZOLE TETRAZOLE, PYRAZINE PRYIMIDINE PYRIDAZINE, TRIAZINES AND TETRAZOLE, AND THEIR CORRESPONDING LOWER ALKYL, PHENYL, AMINO AND MONOCARBOXYL SUBSTITUTE ANALOGUES, SAID HETEROCYCLIC RING CONTAINING AT LEAST ONE CARBON ATOM HAVING A HYDROGEN ATOM ATTACHED THERETO, WITH CARBON DIOXIDE UNDER SUBSTANTIALLY ANHYDROUS CONDICTIONS IN THE PRESENCE OF AN ALKALINE COMPOUND SELECTED FROM THE GROUP CONSISTING OF OXIDES, HYDROXIDES, CARBONATES, BICARBONATES, OXALATES AND FORMATES OF ALKALI METALS, AT A TEMPERATURE BETWEEN ABOUT 150*C. AND THE DECOMPOSITION TEMPERATURE OF SAID HETEROCYCLIC STARTING COMPOUND, WHEREBY AT LEAST OONE CARBOXYL GROUP IS ADDED TO AT LEAST ONE CARBON ATOM HAVING A HYDROGEN ATOM ATTACHED THERETO IN SAID HETEROCYCLIC RING,
Claim 2
Dependent Claim
145 words
THE PROCESS OF PRODUCING ALKALI METAL SALTS OF CAR BOXY-SUBSTITUTED HETEROCYCLIC COMPOUNDS BY DIRECT INTRODUCTION OF A CARBOZYL GROUP ON A CARBON ATOM OF THE HETEROCYCLIC RING, WHICH COMPRISES REACTING A HETEROCYCLIC COMPOUNND SELECTED FROM THE GROUP CONSISTING OF INDAZOLE, IMIDAZOLE, PYRAZOLE, 1,2,4-TRIAZOLE,1,2,3-TRIAZOLE TETRAZOLE, PYRAZINE PRYIMIDINE PYRIDAZINE, TRIAZINES AND TETRAZOLE, AND THEIR CORRESPONDING LOWER ALKYL, PHENYL, AMINO AND MONOCARBOXYL SUBSTITUTE ANALOGUES, SAID HETEROCYCLIC RING CONTAINING AT LEAST ONE CARBON ATOM HAVING A HYDROGEN ATOM ATTACHED THERETO, WITH CARBON DIOXIDE UNDER SUBSTANTIALLY ANHYDROUS CONDICTIONS IN THE PRESENCE OF AN ALKALINE COMPOUND SELECTED FROM THE GROUP CONSISTING OF OXIDES, HYDROXIDES, CARBONATES, BICARBONATES, OXALATES AND FORMATES OF ALKALI METALS, AT A TEMPERATURE BETWEEN ABOUT 150*C. AND THE DECOMPOSITION TEMPERATURE OF SAID HETEROCYCLIC STARTING COMPOUND, WHEREBY AT LEAST OONE CARBOXYL GROUP IS ADDED TO AT LEAST ONE CARBON ATOM HAVING A HYDROGEN ATOM ATTACHED THERETO IN SAID HETEROCYCLIC RING,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |