US3030408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perchloryl fluoride process for fluorination of active hydrogen compounds
Assignee: Pennwalt Corp
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Filing: 1958-09-22
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Granted: 1962-04-17
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Expires: 1978-09-22
Abstract
No abstract record available.
Inventors
- 👤 Charles E Inman
- 👤 Robert E Oesterling
- 👤 Edward A Tyczkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:38
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10; C07B; C07B39/00; C07C201/00; C07C201/06; C07C201/12; C07C253/00; C07C253/30; C07C327/00; C07C327/20; C07C327/22; C07C45/00; C07C45/61; C07C45/63; C07C49/00; C07C49/04; C07C49/16; C07C49/167; C07C67/00; C07C67/30; C07C67/307; C07C2601/00; C07C2601/06; C07C2601/10; C07C2602/00; C07C2602/02; C07C2602/04; C07C2602/08; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/06; C07C2603/10; C07C2603/12; C07C2603/18
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
150 words
A METHOD FOR REPLACING WITH FLUORINE ATOMS THE ACTIVE HYDROGEN ATOMS ATTACHED TO THE ALPHA CARBON ATOM OF AN ACTIVE GROUP OF AN ORGANIC ACTIVE HYDROGEN COMPOUND HAVING AN ACTIVE GROUP SELECTED FROM THE CLASS CONSISTING OF ACTIVE METHYLENE GROUP AND ACTIVE METHINYL GROUP WHICH COMPRISES REACTING SAID ACTIVE HYDROGEN COMPOUND WITH AN ALKALI METAL BASE SELCTED FROM THE GROUP CONSISTING OF AN ALKALI METAL AND THE ALKOXIDE, HYDROXIDE, HYDRIDE AND AMIDE OF AN ALKALI METAL TO REMOVE ALPHA HYDROGEN FROM SAID ACTIVE GROUP AND TO SUBSTITUTE THEREFOR, ALKALI METAL THEREBY FORMING AN ALPHA ALKALI METAL DERIVATIVE OF SAID COMPOUND, AND REACTING SAID DERIVATIVE WITH PERCHLORYL FLUORIDE IN AN AMOUNT AT LEAST STOICHIOMETRICALLY SUFFICIENT OT REPLACE EACH ALPHA ALKALI METAL ATOM OF SAID DERIVATIVE WITH FLUORINE ATOM AT A TEMPERATURE IN THE RANGE FROM ABOUT -15*C. TO ABOUT 250*C., THEREBY FORMING THE ALPHA FLUORINE DERIVATIVE OF SAID ACTIVE HYDROGEN COMPOUND.
Claim 2
Independent Claim
150 words
A METHOD FOR REPLACING WITH FLUORINE ATOMS THE ACTIVE HYDROGEN ATOMS ATTACHED TO THE ALPHA CARBON ATOM OF AN ACTIVE GROUP OF AN ORGANIC ACTIVE HYDROGEN COMPOUND HAVING AN ACTIVE GROUP SELECTED FROM THE CLASS CONSISTING OF ACTIVE METHYLENE GROUP AND ACTIVE METHINYL GROUP WHICH COMPRISES REACTING SAID ACTIVE HYDROGEN COMPOUND WITH AN ALKALI METAL BASE SELCTED FROM THE GROUP CONSISTING OF AN ALKALI METAL AND THE ALKOXIDE, HYDROXIDE, HYDRIDE AND AMIDE OF AN ALKALI METAL TO REMOVE ALPHA HYDROGEN FROM SAID ACTIVE GROUP AND TO SUBSTITUTE THEREFOR, ALKALI METAL THEREBY FORMING AN ALPHA ALKALI METAL DERIVATIVE OF SAID COMPOUND, AND REACTING SAID DERIVATIVE WITH PERCHLORYL FLUORIDE IN AN AMOUNT AT LEAST STOICHIOMETRICALLY SUFFICIENT OT REPLACE EACH ALPHA ALKALI METAL ATOM OF SAID DERIVATIVE WITH FLUORINE ATOM AT A TEMPERATURE IN THE RANGE FROM ABOUT -15*C. TO ABOUT 250*C., THEREBY FORMING THE ALPHA FLUORINE DERIVATIVE OF SAID ACTIVE HYDROGEN COMPOUND.
Claim 3
Dependent Claim
35 words
THE PROCESS OF PREPARING DIETHYL 2-FLUORO-2-PHENYLMALONATE WHICH COMPRISES REACTING DIETHYL 2-PHENYLMALONATE WITH SODIUM METHYLATE AND PERCHLORYL FLUORIDE IN THE MOLAR RATIO OF ABOUT 1:2:2 IN ETHANOL AT A TEMPERATURE RANGING FROM ABOUT -10*C. TO 0*C.
Claim 4
Dependent Claim
35 words
THE PROCESS OF PREPARING DIETHYL 2-FLUORO-2-PHENYLMALONATE WHICH COMPRISES REACTING DIETHYL 2-PHENYLMALONATE WITH SODIUM METHYLATE AND PERCHLORYL FLUORIDE IN THE MOLAR RATIO OF ABOUT 1:2:2 IN ETHANOL AT A TEMPERATURE RANGING FROM ABOUT -10*C. TO 0*C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |