US3767709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alcohol amine interchange
Assignee: Union Oil Company of California
•
Filing: 1971-09-02
•
Granted: 1973-10-23
•
Expires: 1991-09-02
Abstract
Abstract A TERTIARY AMINE IS REACTED WITH AN ALCOHOL OR ALDEHYDE IN A LIQUID REACTION MEDIUM CONTAINING A RUTHENIUM, OSMIUM, RHENIUM OR TECHNETIUM CATALYST WHICH PREFERABLY IN COMPLEX ASSOCIATION WITH A BIPHYLLIC LIGAND TO INTERCHANGE THE HYDROCARBYL PORTIONS OF THE REACTANTS. A TYPICAL PROCESS COMPRESES CONTACTING TRIBUTYLAMINE WITH OCTANOL IN THE PRESENCE OF RUTHENIUM TRICHLORIDE AND TRIPHENYLPHOSPHINE TO PRODUCE BUTANOL AND OCTYLDIBUTYLAMINE. ALDEHYDES CAN BE SIMILARLY REACTED UNDRR HYDROGEN PRESSURE.
Inventors
- 👤 D Fenton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:11
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/128
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |