US4572805A
Expired / Lapsed
US
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2,3,5,6-Tetrafluorophenyl (meth) acrylates and method for production thereof
Assignee: Nippon Shokubai Co Ltd
•
Filing: 1985-03-05
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Granted: 1986-02-25
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Expires: 2005-03-05
Abstract
Abstract 2,3,5,6-Tetrafluorophenyl (meth)acrylates represented by the general formula I: <IMAGE> (I) wherein R is H or CH3 and X is H or CN are disclosed. These compounds are obtained by the reaction of 4-cyano-substituted or unsubstituted 2,3,5,6-tetrafluorophenols with (meth)acrylic acid chloride.
Inventors
- 👤 Osamu Kaieda
- 👤 Koichi Hirota
- 👤 Isao Okitaka
- 👤 Toshiaki Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:55
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/62; C07C69/65; C07C69/653
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
24 words
A compound represented by the general formula I: ##STR4## wherein R denotes hydrogen atom or methyl group and X hydrogen atom or cyano group.
Claim 2
Dependent Claim
24 words
A compound represented by the general formula I: ##STR4## wherein R denotes hydrogen atom or methyl group and X hydrogen atom or cyano group.
Claim 3
Dependent Claim
11 words
A compound according to claim 1, wherein X is hydrogen atom.
Claim 4
Dependent Claim
11 words
A compound according to claim 2, wherein R is hydrogen atom.
Claim 5
Dependent Claim
11 words
A compound according to claim 2, wherein R is methyl group.
Claim 6
Dependent Claim
11 words
A compound according to claim 1, wherein X is cyano group.
Claim 7
Dependent Claim
11 words
A compound according to claim 5, wherein R is hydrogen atom.
Claim 8
Dependent Claim
11 words
A compond according to claim 5, wherein R is methyl group.
Claim 9
Independent Claim
67 words
A method for the production of compounds represented by the general formula I: ##STR5## wherein R denotes hydrogen atom or methyl group and X hydrogen atom or cyano group, by the reaction of 2,3,5,6-tetrafluorophenols represented by the general formula II: ##STR6## wherein M denotes hydrogen atom or an alkali metal and X has the same meaning as described bove, with acrylic acid chloride or methacrylic acid chloride.
Claim 10
Independent Claim
67 words
A method for the production of compounds represented by the general formula I: ##STR5## wherein R denotes hydrogen atom or methyl group and X hydrogen atom or cyano group, by the reaction of 2,3,5,6-tetrafluorophenols represented by the general formula II: ##STR6## wherein M denotes hydrogen atom or an alkali metal and X has the same meaning as described bove, with acrylic acid chloride or methacrylic acid chloride.
Claim 11
Dependent Claim
11 words
A method according to claim 8, wherein M is hydrogen atom.
Claim 12
Dependent Claim
12 words
A method according to claim 8, wherein M is an alkali metal.
Claim 13
Dependent Claim
16 words
A method according to claim 8, wherein said reaction is carried out in an organic solvent.
Claim 14
Dependent Claim
23 words
A method according to claim 8, wherein said reaction is carried out at a temperature in the range of -20° to +120° C.
Claim 15
Dependent Claim
21 words
A method according to claim 9, wherein said reaction is carried out in the presence of a hydrogen chloride trapping agent.
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) | 1989-02-24 | 1989-08-26 | 1990-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-24 | 1993-08-26 | 1994-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-24 | 1997-08-26 | 1998-02-25 | $7700.00 | Window Closed / Lapsed |