Patent US3314955A successfully refreshed from Google Patents.
US3314955A
Expired / Lapsed
US
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Process for providing 2, 4, 6-trifluoropyrimidine
Assignee: Olin Corp
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Filing: 1964-02-11
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Granted: 1967-04-18
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Expires: 1984-02-11
Abstract
No abstract record available.
Inventors
- 👤 Max M Boudakian
- 👤 Charles W Kaufman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:54
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A PROCESS FOR THE PREPARATION OF 2,4,6-TRIFLUOROPYRIMIDINE WHICH COMPRISES REACTING 2,4,6-TRICHLOROPYRIMIDINE WITH POTASSIUM FLUORIDE IN TETRAMETHYLENE SULFONE SOLVENT AT A REACTION TEMPERATURE RANGE OF FROM ABOUT 75%C. TO ABOUT 220%C., AND ISOLATING SAID FLUORINATED DERIVATIVE FROM THE REACTION MIXTURE.
Claim 2
Dependent Claim
39 words
A PROCESS FOR THE PREPARATION OF 2,4,6-TRIFLUOROPYRIMIDINE WHICH COMPRISES REACTING 2,4,6-TRICHLOROPYRIMIDINE WITH POTASSIUM FLUORIDE IN TETRAMETHYLENE SULFONE SOLVENT AT A REACTION TEMPERATURE RANGE OF FROM ABOUT 75%C. TO ABOUT 220%C., AND ISOLATING SAID FLUORINATED DERIVATIVE FROM THE REACTION MIXTURE.
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) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |