US2707196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Open chain analogs of benzene and methods of preparation
Assignee: Individual
•
Filing: 1949-09-28
•
Granted: 1955-04-26
•
Expires: 1969-09-28
Abstract
No abstract record available.
Inventors
- 👤 Woods Gilbert Forrest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:45
CPC Classifications
C; C07; C07C; C07C11/00; C07C11/21; C07C1/00; C07C1/20; C07C1/24; C07C2521/00; C07C2521/02; C07C2521/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
THE METHOD OF PRODUCING OPEN CHAIN ANALOGS OF BENZENE OF THE CONJUGATED POLYENE TYPE COMPRISING THE STEPS OF REACTING 2,4-PENTADIENAL WITH A GRIGNARD REAGENT HAVING A HYDROCARBON RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ALLYL TO PRODUCE AN UNSATURATED ALCOHOL HAVING A HYDROCARBON RADICAL CORRESPONDING TO THE HYDROCARBON RADICAL OF THE GRIGNARD REAGENT, AND CATALYTICALLY DEHYDRATING THE ALCOHOL THUS PRODUCED IN THE PRESENCE OF ACTIVATED ALUMINA TO THE CORRESPONDING UN SATURATED HYDROCARBON. 5. 1,3,5,7-OCTATETRAENE.
Claim 2
Independent Claim
76 words
THE METHOD OF PRODUCING OPEN CHAIN ANALOGS OF BENZENE OF THE CONJUGATED POLYENE TYPE COMPRISING THE STEPS OF REACTING 2,4-PENTADIENAL WITH A GRIGNARD REAGENT HAVING A HYDROCARBON RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ALLYL TO PRODUCE AN UNSATURATED ALCOHOL HAVING A HYDROCARBON RADICAL CORRESPONDING TO THE HYDROCARBON RADICAL OF THE GRIGNARD REAGENT, AND CATALYTICALLY DEHYDRATING THE ALCOHOL THUS PRODUCED IN THE PRESENCE OF ACTIVATED ALUMINA TO THE CORRESPONDING UN SATURATED HYDROCARBON. 5. 1,3,5,7-OCTATETRAENE.
References Cited (Backward Citations)
US2429411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-25 | 1958-10-25 | 1959-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-25 | 1962-10-25 | 1963-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-25 | 1966-10-25 | 1967-04-26 | $7700.00 | Window Closed / Lapsed |