US2859247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of bicyclic ketones
Assignee: IFP Energies nouvelles
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Filing: 1954-11-23
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Granted: 1958-11-04
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Expires: 1974-11-23
Abstract
No abstract record available.
Inventors
- 👤 Radzitzky Pierre De
- 👤 Balaceanu Jean Claude
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:33
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/587; C07C49/657; C07C49/665; C07C49/675; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; C07C45/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A PROCESS FOR THE PRODUCTION OF BICYCLIC KETONES WHEREIN THE FUNCTION C=O IS IN AN A-POSITION OF AN AROMATIC NUCLEUS, WHICH COMPRISES OXIDIZING, IN THE LIQUID PHASE WITH OXYGEN-CONTAINING GAS, A BINUCLEAR HYDROCARBON INCLUDING AN ALKYLENE CHAIN INTERCONNECTING TWO CARBON ATOMS, EACH OF WHICH IS PART OF AN AROMATIC NUCLEUS, AT A TEMPERATURE COMPRISED BETWEEN ABOUT 80* C. AND ABOUT 200*C. IN THE PRESENCE OF A LOWER ALKANOIC ACID SOLVENT AND OF AN OXIDATION CATALYST, SAID CATALYST BEING FORMED BY DISSOLVING IN THE LOWER ALKANOIC ACID SOLVENT A MEMBER SELECTED FROM THE GROUP CONSISTING OF A METAL, A METAL OXIDE, A METAL SALT, AND A METAL SOAP, WHEREBY THE SAID BINUCLEAR HYDROCARBON IS SELECTIVELY OXIDIZED TO THE DESIRED BICYCLIC KETONE AND THE FORMATION OF UNDESIRED BYPRODUCTS IS SUPPRESSED.
Claim 2
Dependent Claim
128 words
A PROCESS FOR THE PRODUCTION OF BICYCLIC KETONES WHEREIN THE FUNCTION C=O IS IN AN A-POSITION OF AN AROMATIC NUCLEUS, WHICH COMPRISES OXIDIZING, IN THE LIQUID PHASE WITH OXYGEN-CONTAINING GAS, A BINUCLEAR HYDROCARBON INCLUDING AN ALKYLENE CHAIN INTERCONNECTING TWO CARBON ATOMS, EACH OF WHICH IS PART OF AN AROMATIC NUCLEUS, AT A TEMPERATURE COMPRISED BETWEEN ABOUT 80* C. AND ABOUT 200*C. IN THE PRESENCE OF A LOWER ALKANOIC ACID SOLVENT AND OF AN OXIDATION CATALYST, SAID CATALYST BEING FORMED BY DISSOLVING IN THE LOWER ALKANOIC ACID SOLVENT A MEMBER SELECTED FROM THE GROUP CONSISTING OF A METAL, A METAL OXIDE, A METAL SALT, AND A METAL SOAP, WHEREBY THE SAID BINUCLEAR HYDROCARBON IS SELECTIVELY OXIDIZED TO THE DESIRED BICYCLIC KETONE AND THE FORMATION OF UNDESIRED BYPRODUCTS IS SUPPRESSED.
References Cited (Backward Citations)
US2245528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |