US4369328A
Expired / Lapsed
US
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Oxygenated alicyclic compounds and process for preparing same
Assignee: Firmenich SA
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Filing: 1981-07-24
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Granted: 1983-01-18
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Expires: 2001-07-24
Abstract
Abstract New oxygenated alicyclic compounds of formula ##STR1## (X=OH, alkyl, O-alkyl) are useful as starting materials for the preparation of cyclohexadienic derivatives of formula ##STR2## (X=OH, alkyl, O-alkyl). They are converted into compounds (III) by treating them with an acidic dehydrating agent in the presence of an inert organic solvent. Compounds (I) are manufactured by reacting compounds (II) ##STR3## (X=OH, alkyl, O-alkyl) with an organic peracid.
Inventors
- 👤 Karl-Heinrich Schulte-Elte
- 👤 Bernard Egger
- 👤 Bernard Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:42
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/48; C07C; C07C45/00; C07C45/61; C07C45/64; C07C49/00; C07C49/527; C07C49/543; C07C61/00; C07C61/16; C07C61/22; C07D303/12; C07D303/32
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
2 words
2,6,6-Trimethyl-1,2-epoxy-cyclohexane-1-carboxylic acid.
Claim 2
Dependent Claim
2 words
2,6,6-Trimethyl-1,2-epoxy-cyclohexane-1-carboxylic acid.
Claim 3
Dependent Claim
2 words
Methyl 2,6,6-trimethyl-1,2-epoxy-cyclohexane-1-carboxylate.
Claim 4
Dependent Claim
2 words
Methyl 2,6,6-trimethyl-1,2-epoxy-cyclohexane-1-carboxylate.
Claim 5
Dependent Claim
2 words
Ethyl 2,6,6-trimethyl-1,2-epoxy-cyclohexane-1-carboxylate.
Claim 6
Dependent Claim
2 words
Ethyl 2,6,6-trimethyl-1,2-epoxy-cyclohexane-1-carboxylate.
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) | 1986-01-17 | 1986-07-19 | 1987-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-17 | 1990-07-19 | 1991-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-17 | 1994-07-19 | 1995-01-18 | $7700.00 | Window Closed / Lapsed |