US3360577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective hydrogenation
Assignee: Novartis AG
•
Filing: 1964-04-13
•
Granted: 1967-12-26
•
Expires: 1984-04-13
Abstract
No abstract record available.
Inventors
- 👤 Pickles Wilfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:44
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/50; C07C5/52; C07C5/02; C07C5/03; C07C5/05; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/06; C07C2521/08; C07C2521/16; C07C2521/18; C07C2523/00; C07C2523/38; C07C2523/40; C07C2523/44; C07C2527/00; C07C2527/20; C07C2527/232; C07C2601/00; C07C2601/18; C07C2601/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A PROCESS OF PRODUCING A CYCLOALKENE CONTAINING AT LEAST ONE ETHYLENICALLY UNSATURATED DOUBLE BOND PER MOLECULE FROM A MORE HIGHLY ETYLENICALLY UNSATURATED CYCLOALKENE CONTAINING THE SAME NUMBER OF CARBON ATOMS PER MOLECULE, WHICH COMPRISES CONTACTING THE MORE HIGHLY ETHYLENICALLY UNSATURATED CYCLOALKENE IN THE PRESENCE OF A PALLADIUM HYDROGENATION CATALYST WITH A CYCLIC HYDROGEN-DONATING HYDROGENATION COMPOUND, THE ESSENTIAL STRUCTURAL MOIETY OF WHOSE MOLECULE IS A SIX-MEMBERED NONAROMATICALLY UNSATURATED CARBOCYCLIC RING, WHICH RING IS CONVERTIBLE BY THE RELEASE OF HYDROGEN FROM SAID COMPOUND TO AN AROMATIC RING, WHEREBY SAID HIGHER UNSATURATED CYCLOALKENE IS SELECTIVELY HYDROGENATED TO A PRODUCT THE MAJOR PORTION OF WHICH CONSISTS OF THE CORRESPONDING CYCLOMONOENE.
Claim 2
Dependent Claim
106 words
A PROCESS OF PRODUCING A CYCLOALKENE CONTAINING AT LEAST ONE ETHYLENICALLY UNSATURATED DOUBLE BOND PER MOLECULE FROM A MORE HIGHLY ETYLENICALLY UNSATURATED CYCLOALKENE CONTAINING THE SAME NUMBER OF CARBON ATOMS PER MOLECULE, WHICH COMPRISES CONTACTING THE MORE HIGHLY ETHYLENICALLY UNSATURATED CYCLOALKENE IN THE PRESENCE OF A PALLADIUM HYDROGENATION CATALYST WITH A CYCLIC HYDROGEN-DONATING HYDROGENATION COMPOUND, THE ESSENTIAL STRUCTURAL MOIETY OF WHOSE MOLECULE IS A SIX-MEMBERED NONAROMATICALLY UNSATURATED CARBOCYCLIC RING, WHICH RING IS CONVERTIBLE BY THE RELEASE OF HYDROGEN FROM SAID COMPOUND TO AN AROMATIC RING, WHEREBY SAID HIGHER UNSATURATED CYCLOALKENE IS SELECTIVELY HYDROGENATED TO A PRODUCT THE MAJOR PORTION OF WHICH CONSISTS OF THE CORRESPONDING CYCLOMONOENE.
References Cited (Backward Citations)
US3022359A
Cited
US3182093A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |