Patent US1619487A successfully refreshed from Google Patents.
US3296306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for 2, 2-diaryl-nu-substituted acetamides
Assignee: Pharmacia and Upjohn Co
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Filing: 1965-03-04
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Granted: 1967-01-03
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Expires: 1985-03-04
Abstract
No abstract record available.
Inventors
- 👤 William Von E Doering
- 👤 Adnan A R Sayigh
- 👤 Tilley James Noel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:21
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/54; C07D213/56; C07C; C07C231/00; C07C231/02; C07C231/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A PROCESS FOR THE PREPARATION OF A 2,2-DI(AR)-NSUBSTITUTED ACETAMIDE, WHEREIN EACH AR IS SELECTED FROM THE CLASS CONSISTING OF UNSUBSTITUTED ARYL AND ALKYL-, ALKENYL-, ALKOXY-, ALKYLTHIO-, AND HALO-SUBSTITUTED ARYL, WHICH COMPRISES REACTING A POLYHALO MEMBER SELECTED FROM THE GROUP CONSISTING OF 1,1-DI(AR)-2,2-DIHALOETHYLENE AND 1,1-DI(AR)-2,2,2-TRIHALOETHANE, WHEREIN AR IS AS DEFINED ABOVE, WITH AN AMINE SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY AMINES AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 100*C. TO ABOUT 250* C. AND IN THE PRESENCE OF (I) A BASE SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL ALCOHOLATES AND ALKALINE EARTH METAL ALCOHOLATES, SAID BASE BEING EMPLOYED IN AN AMOUNT OF AT LEAST ONE EQUIVALENT PER HALO ATOM IN SAID POLYHALO MEMBER, AND (II) FROM ABOUT 0.5 MOLE TO ABOUT 5 MOLES PER MOLE OF SAID POLYHALO MEMBER OF A COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
139 words
A PROCESS FOR THE PREPARATION OF A 2,2-DI(AR)-NSUBSTITUTED ACETAMIDE, WHEREIN EACH AR IS SELECTED FROM THE CLASS CONSISTING OF UNSUBSTITUTED ARYL AND ALKYL-, ALKENYL-, ALKOXY-, ALKYLTHIO-, AND HALO-SUBSTITUTED ARYL, WHICH COMPRISES REACTING A POLYHALO MEMBER SELECTED FROM THE GROUP CONSISTING OF 1,1-DI(AR)-2,2-DIHALOETHYLENE AND 1,1-DI(AR)-2,2,2-TRIHALOETHANE, WHEREIN AR IS AS DEFINED ABOVE, WITH AN AMINE SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY AMINES AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 100*C. TO ABOUT 250* C. AND IN THE PRESENCE OF (I) A BASE SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL ALCOHOLATES AND ALKALINE EARTH METAL ALCOHOLATES, SAID BASE BEING EMPLOYED IN AN AMOUNT OF AT LEAST ONE EQUIVALENT PER HALO ATOM IN SAID POLYHALO MEMBER, AND (II) FROM ABOUT 0.5 MOLE TO ABOUT 5 MOLES PER MOLE OF SAID POLYHALO MEMBER OF A COMPOUND HAVING THE FORMULA:
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |