US3766231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compounds of zero valent nickel containing n bonded nitriles
Assignee: EIDP Inc
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Filing: 1971-08-02
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Granted: 1973-10-16
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Expires: 1991-08-02
Abstract
Abstract AN N-BONDED NITRILE COMPLEX OF ZERO-VALENT NICKEL HAVING THE FORMULA NI(PXYZ)3R''CN WHEREIN X IS OR, Y AND Z ARE R OR OR AND R IS AN ALKYL OR ARYL RADICAL HAVING UP TO 18 CARBON ATOMS, A GIVEN PXYZ LIGAND HAVING A CONE ANGLE WITH AN AVERAGE VALUE BETWEEN 130* AND 200*, AND R'' IS AN ALKYL, CYANO SUBSTITUTED ALKYL, ALKENYL, ARYL OR FLUORINE SUBSTITUTED ARYL RADICAL OF 1 TO 20 CARBON ATOMS. THE COMPOUNDS ARE USEFUL IN THE HYDROCYANATION OF OLEFINIC COMPOUNDS.
Inventors
- 👤 L Wayne
- 👤 C Tolman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:35
CPC Classifications
C; C07; C07F; C07F15/00; C07F15/04; C07F15/045; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1805; B01J31/1845; B01J31/185; C07C; C07C253/00; C07C253/08; C07C253/10; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/323; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/847
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |