US2814646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amine alkylation using aluminum anilide catalyst
Assignee: Ethyl Corp
•
Filing: 1954-04-29
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Granted: 1957-11-26
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Expires: 1974-04-29
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Kolka
- 👤 George G Ecke
- 👤 Rex D Closson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:32
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/68; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A PROCESS OF THE SELECTIVE NUCLEAR ALKYLATION OF AN AROMATIC AMINE HAVING AT LEAST ONE HYDROGEN ON A CARBON ATOM ORTHO TO AN AMINO GROUP AND HAVING AT LEAST ONE HYDROGEN ATOMS ON AN AMINO NITROGEN, SAID AMINE BEING SELECTED FROM THE CLASS CONSISTING OF AMINES UNSUBSTITUTED IN THE NUCLEUS, AMINES HAVING ALKOXY SUBSTITUENTS IN THE IN THE NUCLEUS, AMINES HAVING HALOGEN SUBSTITUENTS IN THE NUCLES AND AMINE HAVING ALKOXY SUBSTITUENTS IN THE NUCLEUS, WHICH PROCESS COMPRISES HEATING SAID AMINE WITH AN OLEFIN IN THE PRESENCE OF AN ALUMINUM ANILIDE CATALYST, SAID REACTION BEING CARRIED OUT AT TEMPERATURES OF 50 TO 500*C.
Claim 2
Dependent Claim
102 words
A PROCESS OF THE SELECTIVE NUCLEAR ALKYLATION OF AN AROMATIC AMINE HAVING AT LEAST ONE HYDROGEN ON A CARBON ATOM ORTHO TO AN AMINO GROUP AND HAVING AT LEAST ONE HYDROGEN ATOMS ON AN AMINO NITROGEN, SAID AMINE BEING SELECTED FROM THE CLASS CONSISTING OF AMINES UNSUBSTITUTED IN THE NUCLEUS, AMINES HAVING ALKOXY SUBSTITUENTS IN THE IN THE NUCLEUS, AMINES HAVING HALOGEN SUBSTITUENTS IN THE NUCLES AND AMINE HAVING ALKOXY SUBSTITUENTS IN THE NUCLEUS, WHICH PROCESS COMPRISES HEATING SAID AMINE WITH AN OLEFIN IN THE PRESENCE OF AN ALUMINUM ANILIDE CATALYST, SAID REACTION BEING CARRIED OUT AT TEMPERATURES OF 50 TO 500*C.
References Cited (Backward Citations)
DE251334C
Cited
US1280940A
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US1882518A
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US2115884A
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US1908190A
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US2021567A
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US2311531A
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US2367713A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |