US4692468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of colonial insects employing o-phenylenediamines
Assignee: Eli Lilly and Co
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Filing: 1982-09-09
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Granted: 1987-09-08
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Expires: 2002-09-09
Abstract
Abstract This invention is directed to the use of a class of N-(2,2-difluoroalkanoyl)-o-phenylenediamines as an agent for the control of certain colonial insects, i.e., ants and termites.
Inventors
- 👤 Rudolph J. Boisvenue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:26
CPC Classifications
A; A01; A01N; A01N37/00; A01N37/18; A01N37/22; A01N37/24; A01N25/00; A01N25/002; A01N25/006
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
198 words
Method for eradicating a fire ant colony, which comprises supplying to the colony an effective amount of an active agent which is a compound of the formula ##STR7## wherein R 1 represents (1) halo, (2) CF 3 , (3) CF 2 H, or (4) CF 2 Cl; one of R 2 and R 3 represents a 2,2-difluoroalkanoyl radical of the formula ##STR8## wherein R 4 represents (1) H, (2) Cl, (3) F, (4) difluoromethyl, or (5) trifluoromethyl; and the other of R 2 and R 3 represents (1) H, (2) the same 2,2-difluoroalkanoyl radical represented by the first of R 2 and R 3 , (3) a radical of the formula ##STR9## wherein R 5 represents loweralkyl of C 1 -C 4 or phenyl, (4) lower alkanoyl of C 2 -C 5 , (5) benzoyl, or (6) halogenated lower alkanoyl of C 2 -C 5 , subject to the limitation that the alpha position bears at least one substituent selected from the group consisting of hydrogen and halogen of atomic weight from 35 to 127, both inclusive; subject to the further limitation that when R 3 represents a 2,2-difluoroalkanoyl radical, R 2 is a group other than H.
Claim 2
Dependent Claim
198 words
Method for eradicating a fire ant colony, which comprises supplying to the colony an effective amount of an active agent which is a compound of the formula ##STR7## wherein R 1 represents (1) halo, (2) CF 3 , (3) CF 2 H, or (4) CF 2 Cl; one of R 2 and R 3 represents a 2,2-difluoroalkanoyl radical of the formula ##STR8## wherein R 4 represents (1) H, (2) Cl, (3) F, (4) difluoromethyl, or (5) trifluoromethyl; and the other of R 2 and R 3 represents (1) H, (2) the same 2,2-difluoroalkanoyl radical represented by the first of R 2 and R 3 , (3) a radical of the formula ##STR9## wherein R 5 represents loweralkyl of C 1 -C 4 or phenyl, (4) lower alkanoyl of C 2 -C 5 , (5) benzoyl, or (6) halogenated lower alkanoyl of C 2 -C 5 , subject to the limitation that the alpha position bears at least one substituent selected from the group consisting of hydrogen and halogen of atomic weight from 35 to 127, both inclusive; subject to the further limitation that when R 3 represents a 2,2-difluoroalkanoyl radical, R 2 is a group other than H.
Claim 3
Dependent Claim
49 words
The method of claim 1 wherein the active agent is a compound of the formula ##STR10## wherein R 6 represents chloro or trifluoromethyl; R 7 represents a 2,2-difluoroalkanoyl radical as defined in claim 1; and R 8 represents H or the same 2,2-difluoroalkanoyl radical represented by R 7 .
Claim 4
Dependent Claim
13 words
The method of claim 2 wherein the active agent is 3-nitro-5-(trifluoromethyl)-N 1 -(2,2,3,3-tetrafluoropropionyl)-o-phenylenediamine.
Claim 5
Dependent Claim
13 words
The method of claim 2 wherein the active agent is 3-nitro-5-(trifluoromethyl)-N 1 -(pentafluoropropionyl)-o-phenylenediamine.
Claim 6
Dependent Claim
15 words
The method of claim 2 wherein the active agent is 3-nitro-5-(trifluoromethyl)-N 1 ,N 2 -bis(trifluoroacetyl)-o-phenylenediamine.
Claim 7
Dependent Claim
15 words
The method of claim 2 wherein the active agent is 3-nitro-5-chloro-N 1 ,N 2 -bis(trifluoroacetyl)-o-phenylenediamine.
Claim 8
Dependent Claim
15 words
The method of claim 2 wherein the active agent is 3-nitro-5-(trifluoromethyl)-N 1 ,N 2 -bis(2,2,3,3-tetrafluoropropionyl)-o-phenylenediamine.
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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) | 1990-09-07 | 1991-03-09 | 1991-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-07 | 1995-03-09 | 1995-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-07 | 1999-03-09 | 1999-09-08 | $7700.00 | Window Closed / Lapsed |