US3438877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic reductive coupling of azo compounds
Assignee: Monsanto Co
•
Filing: 1966-05-18
•
Granted: 1969-04-15
•
Expires: 1986-05-18
Abstract
No abstract record available.
Inventors
- 👤 Manuel M Baizer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:34
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/02; C07D231/06; C07D231/08; C25; C25B; C25B3/00; C25B3/01; C25B3/05; C25B3/07; C25B3/09; C25B3/20; C25B3/29; C25B3/295
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
THE METHOD OF ELECTROLYTIC REDUCTIVE COUPLING WHICH COMPRISES ELECTROLYZING A SOLUTION OF AN AZO COMPOUND IN WHICH THE AZO GROUP IS ELECTROREDUCIBLE AND AN OLEFIN SELECTED FROM THE GROUP CONSISTING OF A,B-OLEFINIC ESTERS, NITRILES, CARBOXAMIDES, PHOSPHONATES, PHOSPHINATES AND SULFONES, 2-ALK-1-ENYL PYRIDINES, AND 4-ALK-1-ENYL PYRIDINES, THE SAID SOLUTION CONTAINING A SUPPORTING ELECTROLYTE AND THE ELECTROLYSIS OF THE SOLUTION OCCURRING IN CONTACT WITH A CATHODE, AND ATTAINING A CATHODE POTENTIAL SUFFICIENT TO EFFECT THE REDUCTIVE COUPLING, AND RECOVERING A REDUCED, COUPLED PRODUCT IN WHICH COUPLING HAS OCCURRED BETWEEN THE B-CARBON OF THE OLEFIN AND NITROGEN OF THE AZO COMPOUND.
Claim 2
Independent Claim
97 words
THE METHOD OF ELECTROLYTIC REDUCTIVE COUPLING WHICH COMPRISES ELECTROLYZING A SOLUTION OF AN AZO COMPOUND IN WHICH THE AZO GROUP IS ELECTROREDUCIBLE AND AN OLEFIN SELECTED FROM THE GROUP CONSISTING OF A,B-OLEFINIC ESTERS, NITRILES, CARBOXAMIDES, PHOSPHONATES, PHOSPHINATES AND SULFONES, 2-ALK-1-ENYL PYRIDINES, AND 4-ALK-1-ENYL PYRIDINES, THE SAID SOLUTION CONTAINING A SUPPORTING ELECTROLYTE AND THE ELECTROLYSIS OF THE SOLUTION OCCURRING IN CONTACT WITH A CATHODE, AND ATTAINING A CATHODE POTENTIAL SUFFICIENT TO EFFECT THE REDUCTIVE COUPLING, AND RECOVERING A REDUCED, COUPLED PRODUCT IN WHICH COUPLING HAS OCCURRED BETWEEN THE B-CARBON OF THE OLEFIN AND NITROGEN OF THE AZO COMPOUND.
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) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |