US3674785A
Expired / Lapsed
US
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Certain fluorimino or azomethine containing compounds
Assignee: 3M Co
•
Filing: 1964-01-09
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Granted: 1972-07-04
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Expires: 1984-01-09
Abstract
Abstract 8. A compound of the formula: WHEREIN EACH R is selected from the class consisting of fluorine and fluoroalkyl radicals and wherein R groups taken together can form ring systems, which compound comprises a ring which contains a plurality of hetero atoms therein, said ring containing only a single azomethine group, provided that said compound contains no atoms other than carbon, fluorine, nitrogen, oxygen and sulfur atoms. 10. Perfluoro-5,6-dihydro-2H-1,4-oxazine. 12. 1,1,1,1-TETRAFLUOROPERFLUORO-5,6-DIHYDRO-2H-1,4-thiazine.
Inventors
- 👤 Ronald A Mitsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:16
CPC Classifications
C; C07; C07D; C07D265/00; C07D265/28; C07D265/30; C07D207/00; C07D207/02; C07D207/18; C07D207/22; C07D211/00; C07D211/04; C07D211/68; C07D211/72; C07D211/92; C07D215/00; C07D215/02; C07D215/16; C07D215/18; Y; Y10; Y10S; Y10S149/00; Y10S149/119
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
80 words
A process for the preparation of a compound of the formula: wherein each R is selected from the class consisting of fluorine, perfluorinated groups and perfluorinated groups substituted by electronegative groups having Hammett meta sigma parameters of at least + 0.3 and wherein R groups taken together can form rings through the atoms to which they are bonded, which comprises reductively defluorinating a compound of the formula: wherein the R groups are as previously defined, and isolating the desired product.
Claim 2
Dependent Claim
80 words
A process for the preparation of a compound of the formula: wherein each R is selected from the class consisting of fluorine, perfluorinated groups and perfluorinated groups substituted by electronegative groups having Hammett meta sigma parameters of at least + 0.3 and wherein R groups taken together can form rings through the atoms to which they are bonded, which comprises reductively defluorinating a compound of the formula: wherein the R groups are as previously defined, and isolating the desired product.
Claim 3
Dependent Claim
12 words
A process according to claim 1 wherein the desired product contains chlorine.
Claim 4
Dependent Claim
16 words
A process according to claim 1 wherein at least one of the R groups contains nitrogen.
Claim 5
Dependent Claim
18 words
A process according to claim 1 wherein the R groups are fluoroalkyl and contain only carbon and fluorine.
Claim 6
Dependent Claim
18 words
A process according to claim 1 wherein the two R groups on the carbon atom form a ring.
Claim 7
Dependent Claim
25 words
A process according to claim 1 wherein the R group on the nitrogen atom forms a ring system with one of the other R groups.
Claim 8
Dependent Claim
66 words
A compound of the formula: wherein each R is selected from the class consisting of fluorine and fluoroalkyl radicals and wherein R groups taken together can form ring systems, which compound comprises a ring which contains a plurality of hetero atoms therein, said ring containing only a single azomethine group, provided that said compound contains no atoms other than carboN, fluorine, nitrogen, oxygen and sulfur atoms.
Claim 9
Dependent Claim
66 words
A compound of the formula: wherein each R is selected from the class consisting of fluorine and fluoroalkyl radicals and wherein R groups taken together can form ring systems, which compound comprises a ring which contains a plurality of hetero atoms therein, said ring containing only a single azomethine group, provided that said compound contains no atoms other than carboN, fluorine, nitrogen, oxygen and sulfur atoms.
Claim 10
Dependent Claim
5 words
A COMPOUND OF THE FORMULA:
Claim 11
Dependent Claim
5 words
A COMPOUND OF THE FORMULA:
Claim 12
Dependent Claim
15 words
A compound according to claim 8 which contains only carbon, fluorine, nitrogen and oxygen atoms.
Claim 13
Dependent Claim
1 words
Perfluoro-5,6-dihydro-2H-1,4-oxazine.
Claim 14
Dependent Claim
1 words
Perfluoro-5,6-dihydro-2H-1,4-oxazine.
Claim 15
Dependent Claim
3 words
PERFLUORO-5,6-DIHYDRO-2H-1,4-OXAZINE. 12. 1,1,1,1-TETRAFLUOROPERFLUORO-5,6-DIHYDRO-2H-,1,4THIAZINE.
Claim 16
Dependent Claim
3 words
PERFLUORO-5,6-DIHYDRO-2H-1,4-OXAZINE. 12. 1,1,1,1-TETRAFLUOROPERFLUORO-5,6-DIHYDRO-2H-,1,4THIAZINE.
Claim 17
Dependent Claim
15 words
A compound according to claim 8 which contains only carbon, fluorine, nitrogen and sulfur atoms.
Claim 18
Dependent Claim
1 words
1,1,1,1-tetrafluoroperfluoro-5,6-dihydro-2H-1,4-thiazine.
Claim 19
Dependent Claim
1 words
1,1,1,1-tetrafluoroperfluoro-5,6-dihydro-2H-1,4-thiazine.
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |