US2773099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the preparation of alpha-substituted organic carbonyl compounds
Assignee: Individual
•
Filing: 1954-09-03
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Granted: 1956-12-04
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Expires: 1974-09-03
Abstract
No abstract record available.
Inventors
- 👤 Stork Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:02
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/385; C07C49/487; C07C49/497; C07C45/00; C07C45/51; C07C45/516; C07C45/56; C07C45/562; C07C49/403; C07C49/587; C07C49/657; C07C49/665; C07C49/67; C07C49/753; C07C49/755; C07C49/76; C07C49/782; C07C49/792
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A METHOD FOR THE PREPARATION OF A-SUBSTITUTED FIVEAND SIX-NUMBERED RING COMPOUNDS CONTAINING A KETO GROUP WHICH COMPRISES CONDENSING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF FIVE-AND SIX-MEMBERED SATURATED CYCLIC RING COMPOUNDS CONTAINING A KETO GROUP WITH A SECONDARY AMINE TO FORM AN ENAMINE, REACTING THE ENAMINE WITH A MEMBER OF THE GROUP CONSISTING OF ALKYLATING AND ACYLATING AGENTS IN AN ORGANIC SOLVENT TO EFFECT SUBSTITUTION IN THE A POSITION, AND DECOMPOSING THE RESULTING A-SUBSTITUTION PRODUCT WITH WATER.
Claim 2
Independent Claim
78 words
A METHOD FOR THE PREPARATION OF A-SUBSTITUTED FIVEAND SIX-NUMBERED RING COMPOUNDS CONTAINING A KETO GROUP WHICH COMPRISES CONDENSING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF FIVE-AND SIX-MEMBERED SATURATED CYCLIC RING COMPOUNDS CONTAINING A KETO GROUP WITH A SECONDARY AMINE TO FORM AN ENAMINE, REACTING THE ENAMINE WITH A MEMBER OF THE GROUP CONSISTING OF ALKYLATING AND ACYLATING AGENTS IN AN ORGANIC SOLVENT TO EFFECT SUBSTITUTION IN THE A POSITION, AND DECOMPOSING THE RESULTING A-SUBSTITUTION PRODUCT WITH WATER.
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) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |