US3252876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical preparation of acyloxy derivatives of alkyl-substituted condensed ring aromatic compounds
Assignee: ExxonMobil Oil Corp
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Filing: 1963-12-12
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Granted: 1966-05-24
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Expires: 1983-12-12
Abstract
No abstract record available.
Inventors
- 👤 Jr William J Koehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:30
CPC Classifications
C; C25; C25B; C25B3/00; C25B3/20; C25B3/23; C25B3/01; C25B3/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
METHOD FOR THE ELECTROCHEMICAL PREPARATION OF A MONOACYLOXY DERIVATIVE OA AN ALKYL-SUBSTITUTED CONDENSED RING AROMATIC COMPOUND WHICH COMRISES ELECTROLYZING AN ANHYDROUS SOLUTION OF SAID AROMATIC, AN ALKANOIC ACID, AND ALKALI METAL SALT OF AN ALKANOIC ACID, AND AN ALKANOIC ACID ANHYDRIDE BY PASSING UP TO 1.3 FARADAYS OF ELECTRICITY PER MOLE OF AROMATIC THROUGH SAID SOLUTION FROM AN ANODE TO A CATHODE TO CONVERT AT LEAST ABOUT 40% BY WEIGHT OF THE AROMATIC TO A MONOACYLOXY DERIVATIVE, SAID DERIVATIVE BEING SUBSTANTIALLY THE ONLY ACYLOXY DERIVATIVE THAT IS FORMED AND COMPRISING AT LEAST ABOUT 40% BY WEIGHT OF THE TOTAL AROMATIC-CONTAINNG COMPOUNDS PRESENT WITH THE BALANCE OF SUCH COMPOUNDS COMPRISING THE AROMATIC ITSELF, THEN CEASING THE ELECTROLYSIS, AND REMOVING SAID DEREVATIVE FROM THE SOLUTION.
Claim 2
Dependent Claim
123 words
METHOD FOR THE ELECTROCHEMICAL PREPARATION OF A MONOACYLOXY DERIVATIVE OA AN ALKYL-SUBSTITUTED CONDENSED RING AROMATIC COMPOUND WHICH COMRISES ELECTROLYZING AN ANHYDROUS SOLUTION OF SAID AROMATIC, AN ALKANOIC ACID, AND ALKALI METAL SALT OF AN ALKANOIC ACID, AND AN ALKANOIC ACID ANHYDRIDE BY PASSING UP TO 1.3 FARADAYS OF ELECTRICITY PER MOLE OF AROMATIC THROUGH SAID SOLUTION FROM AN ANODE TO A CATHODE TO CONVERT AT LEAST ABOUT 40% BY WEIGHT OF THE AROMATIC TO A MONOACYLOXY DERIVATIVE, SAID DERIVATIVE BEING SUBSTANTIALLY THE ONLY ACYLOXY DERIVATIVE THAT IS FORMED AND COMPRISING AT LEAST ABOUT 40% BY WEIGHT OF THE TOTAL AROMATIC-CONTAINNG COMPOUNDS PRESENT WITH THE BALANCE OF SUCH COMPOUNDS COMPRISING THE AROMATIC ITSELF, THEN CEASING THE ELECTROLYSIS, AND REMOVING SAID DEREVATIVE FROM THE SOLUTION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |