Patent US4077797A successfully refreshed from Google Patents.
US4077797A
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1-Polyfluoroalkoxyphenyl-4-substituted-5-halopyridazones-6 and herbicidal uses thereof
Assignee: BASF SE
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Filing: 1976-05-26
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Granted: 1978-03-07
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Expires: 1996-05-26
Abstract
Abstract 1-Polyfluoroalkoxyphenyl-4-substituted-5-halopyridazones-6 in which the 4-substituent is amino, monoalkylamino, dialkylamino (1 to 3 carbon atoms per alkyl) or lower alkoxy, chloroacetamido, CH 3 COOCH 2 --CO--NH-- or trimethylenimino and herbicidal uses thereof to control growth of unwanted plants among crop plants, especially cotton.
Inventors
- 👤 Adolf Fischer, deceased
- 👤 Hanspeter Hansen
- 👤 Wolfgang Rohr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:42
CPC Classifications
C; C07; C07D; C07D337/00; C07D337/02; C07D337/06; C07D337/10; C07D337/12; C07D237/00; C07D237/02; C07D237/06; C07D237/10; C07D237/14; C07D337/16
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
18 words
A substituted pyridazone selected from the group consisting of 1-(m-tetrafluoroethoxyphenyl)-4-amino-5-chloropyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-amino-5-bromopyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-methylamino-5-chloropyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-methylamino-5-bromopyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-dimethylamino-5-chloropyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-dimethylamino-5-bromopyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-methoxy-5-chloropyridazone-6 and 1-(m-tetrafluoroethoxyphenyl)-4-methoxy-5-bromopyridazone-6.
Claim 2
Dependent Claim
18 words
A substituted pyridazone selected from the group consisting of 1-(m-tetrafluoroethoxyphenyl)-4-amino-5-chloropyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-amino-5-bromopyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-methylamino-5-chloropyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-methylamino-5-bromopyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-dimethylamino-5-chloropyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-dimethylamino-5-bromopyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-methoxy-5-chloropyridazone-6 and 1-(m-tetrafluoroethoxyphenyl)-4-methoxy-5-bromopyridazone-6.
Claim 3
Dependent Claim
29 words
A substituted pyridazone as claimed in claim 1 wherein the compound has the formula ##STR91## wherein Hal is chloro, R 1 is tetrafluoroethyl and R is methylamino or dimethylamino.
Claim 4
Dependent Claim
27 words
A substituted pyridazone as claimed in claim 1 wherein the compound has the formula ##STR92## wherein Hal is chloro, R 1 is tetrafluoroethyl and R is methoxy.
Claim 5
Dependent Claim
24 words
A substituted pyridazone of the formula ##STR93## wherein Hal is bromo or chloro, R 1 is difluoromethyl and R is methoxy, dimethylamino or methylamino.
Claim 6
Dependent Claim
24 words
A substituted pyridazone of the formula ##STR93## wherein Hal is bromo or chloro, R 1 is difluoromethyl and R is methoxy, dimethylamino or methylamino.
Claim 7
Dependent Claim
43 words
A process for controlling the growth of unwanted plants among cotton plants wherein the locus of the plants is treated with a phytotoxic amount of a substituted pyridazone selected from the group consisting of 1-(m-tetrafluoroethoxyphenyl)-4-amino-5-chloropyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-amino-5-bromopyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-methylamino-5-chloropyridaone-6, 1-(m-tetrafluoroethoxyphenyl)-4-methylamino-5-bromopyridaone-6, 1-(m-tetrafluoroethoxyphenyl)-4-dimethylamino-5-chloropyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-dimethylamino-5-bromopyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-methoxy-5-chloropyridazone-6 and 1-(m-tetrafluoroethoxyphenyl)-4-methoxy-5-bromopyridazone-6.
Claim 8
Dependent Claim
43 words
A process for controlling the growth of unwanted plants among cotton plants wherein the locus of the plants is treated with a phytotoxic amount of a substituted pyridazone selected from the group consisting of 1-(m-tetrafluoroethoxyphenyl)-4-amino-5-chloropyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-amino-5-bromopyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-methylamino-5-chloropyridaone-6, 1-(m-tetrafluoroethoxyphenyl)-4-methylamino-5-bromopyridaone-6, 1-(m-tetrafluoroethoxyphenyl)-4-dimethylamino-5-chloropyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-dimethylamino-5-bromopyridazone-6, 1-(m-tetrafluoroethoxyphenyl)-4-methoxy-5-chloropyridazone-6 and 1-(m-tetrafluoroethoxyphenyl)-4-methoxy-5-bromopyridazone-6.
References Cited (Backward Citations)
US3697522A
Cited
US3644355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-06 | 1981-09-05 | 1982-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-06 | 1985-09-05 | 1986-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-06 | 1989-09-05 | 1990-03-07 | $7700.00 | Window Closed / Lapsed |