Patent US4172893A successfully refreshed from Google Patents.
US4172893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rodenticidal 3-pyridylmethyl phenyl carbamate metal salt complexes
Assignee: Rohm and Haas Co
•
Filing: 1978-01-11
•
Granted: 1979-10-30
•
Expires: 1998-01-11
Abstract
Abstract Complexes of 3-pyridylmethyl 4-substituted-phenylcarbamates with salts of an alkaline earth or transition metal are useful as rodenticides. The carbamates from which the complexes are prepared have the formula ##STR1## wherein X is a nitro, cyano, trifluoromethyl, alkylsulfinyl, alkylsulfonyl, or aminosulfonyl group.
Inventors
- 👤 Ernest D. Weiler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:48
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/28; C07D213/30; A; A01; A01N; A01N47/00; A01N47/08; A01N47/10; A01N47/20; C07F; C07F19/00; C07F19/005
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
88 words
A metal salt complex of the formula ##STR5## wherein X is --NO 2 , --CN, --CF 3 , --SOR, --SO 2 R, or --SO 2 NH 2 , wherein R is a (C 1 -C 4 )alkyl group; M is an alkaline earth or transition metal cation; Y is a bromide, chloride, iodide, perchlorate, carbonate, bicarbonate, nitrate, phosphate, sulfate, bisulfate, acetate, maleate, oxalate, or p-toluenesulfonate anion; a is 1 or 2; and n is an integer which for the anion X satisfies the valence of the cation M.
Claim 2
Dependent Claim
88 words
A metal salt complex of the formula ##STR5## wherein X is --NO 2 , --CN, --CF 3 , --SOR, --SO 2 R, or --SO 2 NH 2 , wherein R is a (C 1 -C 4 )alkyl group; M is an alkaline earth or transition metal cation; Y is a bromide, chloride, iodide, perchlorate, carbonate, bicarbonate, nitrate, phosphate, sulfate, bisulfate, acetate, maleate, oxalate, or p-toluenesulfonate anion; a is 1 or 2; and n is an integer which for the anion X satisfies the valence of the cation M.
Claim 3
Dependent Claim
11 words
The complex of claim 1 wherein X is --NO 2 .
Claim 4
Dependent Claim
9 words
The complex of claim 2 wherein Y is chloride.
Claim 5
Dependent Claim
15 words
The complex of claim 3 wherein M is a zinc cation and a is 2.
Claim 6
Dependent Claim
9 words
The complex of claim 1 wherein X is --CN.
Claim 7
Dependent Claim
128 words
A metal salt complex which is the product formed by (a) contacting a salt of the formula MY n , wherein M is an alkaline earth or transition metal cation; Y is a bromide, chloride, iodide, perchlorate, carbonate, bicarbonate, nitrate, phosphate, sulfate, bisulfate, acetate, maleate, oxalate, or p-toluenesulfonate anion; and n is an integer which for the anion Y satisfies the valence of the cation M with a carbamate of the formula ##STR6## wherein X is --NO 2 , --CN, --CF 3 , --SOR, --SO 2 R, or --SO 2 NH 2 , wherein R is a (C 1 -C 4 )alkyl group, in a solvent in which the salt and the carbamate have sufficient solubility to form a complex, and (b) partially or completely removing the solvent.
Claim 8
Dependent Claim
128 words
A metal salt complex which is the product formed by (a) contacting a salt of the formula MY n , wherein M is an alkaline earth or transition metal cation; Y is a bromide, chloride, iodide, perchlorate, carbonate, bicarbonate, nitrate, phosphate, sulfate, bisulfate, acetate, maleate, oxalate, or p-toluenesulfonate anion; and n is an integer which for the anion Y satisfies the valence of the cation M with a carbamate of the formula ##STR6## wherein X is --NO 2 , --CN, --CF 3 , --SOR, --SO 2 R, or --SO 2 NH 2 , wherein R is a (C 1 -C 4 )alkyl group, in a solvent in which the salt and the carbamate have sufficient solubility to form a complex, and (b) partially or completely removing the solvent.
Claim 9
Dependent Claim
22 words
A rodenticidal composition which comprises a rodenticidally-effective amount of a complex according to claim 1 and an edible dry or semi-moist carrier.
Claim 10
Dependent Claim
20 words
The composition of claim 7 wherein the complex is present in an amount of at least about 0.05% by weight.
Claim 11
Dependent Claim
46 words
A method of exterminating pest rodents which comprises placing a rodenticidally effective amount of a complex according to claim 1 in the vicinity of a population of the pest rodents in a place where the complex may easily be reached and ingested by the pest rodents.
References Cited (Backward Citations)
US3865931A
Cited
US3966947A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-10-29 | 1983-04-30 | 1983-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-29 | 1987-04-30 | 1987-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-29 | 1991-04-30 | 1991-10-30 | $7700.00 | Window Closed / Lapsed |