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US3696150A
Expired / Lapsed
US
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Halogen-exchange fluorination of organic compounds using ammonium fluoride
Assignee: Honeywell International Inc
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Filing: 1970-02-16
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Granted: 1972-10-03
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Expires: 1990-02-16
Abstract
Abstract Compounds having a nonfluorine halogen atom attached to a carbon atom which in turn is bonded to two phenyl groups, or doubly bonded to an oxygen atom, are fluorinated by reaction with ammonium fluoride or ammonium bifluoride, whereby the halogen atom is replaced by fluorine.
Inventors
- 👤 Bernard M Lichstein
- 👤 Cyril Woolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:53
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/58; C07C51/60; C01; C01B; C01B32/00; C01B32/70; C01B32/80; C07B; C07B39/00; C07C17/00; C07C17/093; C07C17/20; C07C17/202; C07C17/206; C07C17/208; C07C22/00; C07C22/02; C07C22/04; C07C22/08; C07C51/347; C07C51/363; C07C53/00; C07C53/15; C07C53/19; C07C68/00; C07C68/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
11 words
The method of claim 1 wherein the compound has the formula
Claim 2
Dependent Claim
21 words
The method of claim 2 wherein Y is chlorine, fluorine, phenyl or an alkyl radical having one to eight carbon atoms.
Claim 3
Dependent Claim
11 words
The method of claim 3 wherein X is chlorine or bromine.
Claim 4
Dependent Claim
11 words
The method of claim 1 wherein the compound has the formula
Claim 5
Dependent Claim
13 words
The method of claim 5 wherein Z3 is chlorine, bromine, hydrogen or phenyl.
Claim 6
Dependent Claim
11 words
The method of claim 6 wherein X is chlorine or bromine.
Claim 7
Dependent Claim
9 words
The method of claim 6 wherein Z3 is phenyl.
Claim 8
Dependent Claim
11 words
The method of claim 8 wherein X is chlorine or bromine.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |