US4187099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3-Aryl-4-isothiazolecarboxylic acid and 3-aryl-4-isoxazolecarboxylic acid derivatives and their use as herbicides
Assignee: Monsanto Co
•
Filing: 1977-11-16
•
Granted: 1980-02-05
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Expires: 1997-11-16
Abstract
Abstract Carboxylic acid derivatives having the formula <IMAGE> have been found to be effective herbicides. They are especially effective when applied as a pre-emergent herbicide.
Inventors
- 👤 John E. Franz
- 👤 Robert K. Howe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:55
CPC Classifications
C; C07; C07D; C07D291/00; C07D291/02; C07D291/04; A; A01; A01N; A01N43/00; A01N43/72; A01N43/80; C07C; C07C259/00; C07C259/02; C07D261/00; C07D261/02; C07D261/06; C07D261/10; C07D261/18; C07D275/00; C07D275/02; C07D275/03; C07D295/00; C07D295/04; C07D295/14; C07D295/145
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
169 words
A method of inhibiting the growth of undesirable plants which comprises applying to the plant system a herbicidally effective amount of a compound having the formula ##STR9## wherein X and Y are independently selected from the group consisting of hydrogen, lower alkyl, lower alkoxy, trifluoromethyl, halogen, cyano and nitro; n is zero or one provided that when n is zero, Z is selected from the group consisting of chloro and NR 1 R 2 wherein R 1 and R 2 are independently selected from the group consisting of hydrogen and lower alkyl; when n is one, Z is selected from the group consisting of alkyl having up to 12 carbon atoms inclusive, alkyl having up to 5 carbon atoms inclusive which have been substituted with from 1 to 3 halogen atoms, inclusive, benzyl, lower alkoxy lower alkyl, allyl, monochlorinated allyl, dichlorinated allyl, ##STR10## and agriculturally acceptable cations; wherein R 1 and R 2 are as previously defined, R 3 is hydrogen or methyl and R 4 is lower alkyl.
Claim 2
Independent Claim
169 words
A method of inhibiting the growth of undesirable plants which comprises applying to the plant system a herbicidally effective amount of a compound having the formula ##STR9## wherein X and Y are independently selected from the group consisting of hydrogen, lower alkyl, lower alkoxy, trifluoromethyl, halogen, cyano and nitro; n is zero or one provided that when n is zero, Z is selected from the group consisting of chloro and NR 1 R 2 wherein R 1 and R 2 are independently selected from the group consisting of hydrogen and lower alkyl; when n is one, Z is selected from the group consisting of alkyl having up to 12 carbon atoms inclusive, alkyl having up to 5 carbon atoms inclusive which have been substituted with from 1 to 3 halogen atoms, inclusive, benzyl, lower alkoxy lower alkyl, allyl, monochlorinated allyl, dichlorinated allyl, ##STR10## and agriculturally acceptable cations; wherein R 1 and R 2 are as previously defined, R 3 is hydrogen or methyl and R 4 is lower alkyl.
Claim 3
Dependent Claim
17 words
A method according to claim 1 wherein Z is alkyl having up to 12 carbon atoms inclusive.
Claim 4
Dependent Claim
16 words
A method according to claim 1 wherein X is trifluoromethyl and Y is hydrogen or trifluoromethyl.
Claim 5
Dependent Claim
12 words
A method according to claim 3 wherein X is in the 3-position.
Claim 6
Dependent Claim
10 words
A method according to claim 4 wherein Y is hydrogen.
Claim 7
Dependent Claim
13 words
A method according to claim 1 wherein said compound has the formula ##STR11##
Claim 8
Dependent Claim
21 words
A method according to claim 1 which comprises applying said compound to the soil before the emergence of the undesirable plants.
References Cited (Backward Citations)
US3155678A
Cited
US3699115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-02-04 | 1983-08-06 | 1984-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-04 | 1987-08-06 | 1988-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-04 | 1991-08-06 | 1992-02-05 | $7700.00 | Window Closed / Lapsed |