US3920747A
Expired / Lapsed
US
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Hydroazulenones
Assignee: Givaudan Roure Corp
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Filing: 1973-11-07
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Granted: 1975-11-18
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Expires: 1993-11-07
Abstract
Abstract Novel hydroazulenones, a process for making them and odorant compositions containing the novel compounds are disclosed.
Inventors
- 👤 Peter Naegeli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:00
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/587; C07C49/613; C07C49/617; C07C49/623; C07C49/637; C07C45/00; C07C45/61; C07C45/67; C11; C11B; C11B9/00; C11B9/0042; C11B9/0046; C11B9/0049
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
5 words
HYDROAZULENONES OF THE GENERAL FORMULA
Claim 2
Dependent Claim
5 words
HYDROAZULENONES OF THE GENERAL FORMULA
Claim 3
Dependent Claim
1 words
1-Isopropyl-3a-methyl-1,2,3,3a,6,7,8,8a-octahydroazulen-6-one.
Claim 4
Dependent Claim
1 words
1-Isopropyl-3a-methyl-1,2,3,3a,6,7,8,8a-octahydroazulen-6-one.
Claim 5
Dependent Claim
1 words
1-Isopropyl-3a,5-dimethyl-1,2,3,3a,6,7,8,8a-octahydro-azulen-6-one.
Claim 6
Dependent Claim
1 words
1-Isopropyl-3a,5-dimethyl-1,2,3,3a,6,7,8,8a-octahydro-azulen-6-one.
Claim 7
Dependent Claim
31 words
A PROCESS WHICH COMPRISES REACTING 3-ISOPROPYL-1-METHYL-2-(3-OXO-4-PENTENY)-1-CYCLOPENTENE DISSOLVED IN A BENZENEETHYL ETHER MIXTURE IN THE PRESENCE OF TIN TETRACHLORIDE, AT A TEMPERATURE FROM ABOUT 0*C. TO AMBIENT ROOM TEMPERATURE, TO FORM 1-ISOPROPYL-3A-METHYL-1,2,3,3A,6,7,8,8A-OCTAHYDROAZULEN-6-ONE.
Claim 8
Dependent Claim
31 words
A PROCESS WHICH COMPRISES REACTING 3-ISOPROPYL-1-METHYL-2-(3-OXO-4-PENTENY)-1-CYCLOPENTENE DISSOLVED IN A BENZENEETHYL ETHER MIXTURE IN THE PRESENCE OF TIN TETRACHLORIDE, AT A TEMPERATURE FROM ABOUT 0*C. TO AMBIENT ROOM TEMPERATURE, TO FORM 1-ISOPROPYL-3A-METHYL-1,2,3,3A,6,7,8,8A-OCTAHYDROAZULEN-6-ONE.
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |