US4017510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imidazoisoindolediones and the use thereof as herbicidal agents
Assignee: Wyeth Holdings LLC
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Filing: 1975-11-12
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Granted: 1977-04-12
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Expires: 1995-11-12
Abstract
Abstract The invention relates to novel imidazoisoindoledione compounds including the optical isomers thereof. This invention also relates to a method for the control of undesirable plant species with the imidazoisoindolediones and their optical isomers, and further, to a process for the preparation of the compounds.
Inventors
- 👤 Marinus Los
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:16
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48; A; A01; A01N; A01N43/00; A01N43/90; C07C; C07C255/00; C07D487/00; C07D487/02; C07D487/04; C07D487/10; C12; C12P; C12P41/00; C12P41/006; C12P41/007
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
91 words
A compound having the structure: ##STR60##wherein X is H, CH 3 , NO 2 , Cl, OCH 3 or SCH 3 ; R 1 is alkyl C 1 -C 4 ; R 2 is alkyl C 1 -C 6 , cycloalkyl C 3 -C 6 , alkenyl C 2 -C 4 , phenyl, halophenyl or benzyl; and when R 1 and R 2 are taken together with the carbon to which they are attached they may form cycloalkyl C 3 -C 6 optionally substituted with methyl; and the optical isomers thereof.
Claim 2
Dependent Claim
91 words
A compound having the structure: ##STR60##wherein X is H, CH 3 , NO 2 , Cl, OCH 3 or SCH 3 ; R 1 is alkyl C 1 -C 4 ; R 2 is alkyl C 1 -C 6 , cycloalkyl C 3 -C 6 , alkenyl C 2 -C 4 , phenyl, halophenyl or benzyl; and when R 1 and R 2 are taken together with the carbon to which they are attached they may form cycloalkyl C 3 -C 6 optionally substituted with methyl; and the optical isomers thereof.
Claim 3
Dependent Claim
29 words
A compound according to claim 1, wherein the sum of the carbon atoms represented by R 1 and R 2 is 2 to 4; and the optical isomers thereof.
Claim 4
Dependent Claim
55 words
A compound according to claim 1, wherein X is hydrogen, methyl or chloro; R 1 is alkyl C 1 -C 4 ; R 2 is alkyl C 1 -C 3 or cyclopropyl and the sum of the carbon atoms represented by R 1 and R 2 is 2 to 4; and the optical isomers thereof.
Claim 5
Dependent Claim
7 words
A compound according to claim 1, 3-isopropyl-3-methyl-5H-imidazo[2,1-a]isoindole-2(3H),5-dione.
Claim 6
Dependent Claim
7 words
A compound according to claim 1, 3-isopropyl-3,7/8-dimethyl-5H-imidazo[2,1-a]isoindole-2-(3H),5-dione.
Claim 7
Dependent Claim
7 words
A compound according to claim 1, 7/8-chloro-3-isopropyl-3-methyl-5H-imidazo[2,1-a]isoindole-2(3H),5-dione.
Claim 8
Dependent Claim
7 words
A compound according to claim 1, 6'/9'-chlorospiro[cyclohexane-1,3'-(3H)]imidazo[2,1-a]isoindole-2',5'-dione.
Claim 9
Dependent Claim
7 words
A compound according to claim 1, 7'/8'-methylspiro[cyclohexane-1,3'-(3H)]imidazo[2,1-a]isoindole-2',5'-dione.
Claim 10
Dependent Claim
7 words
A compound according to claim 1, (+)-3-isopropyl-3-methyl-5H-imidazo[2,1-a]isoindole-2(3H),5-dione.
Claim 11
Dependent Claim
7 words
A compound according to claim 1, (-)-3-isopropyl-3-methyl-5H-imidazo[2,1-a]isoindole-2(3H),5-dione.
References Cited (Backward Citations)
US3555042A
Cited
US3850957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-11 | 1980-10-11 | 1981-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-11 | 1984-10-11 | 1985-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-11 | 1988-10-11 | 1989-04-12 | $7700.00 | Window Closed / Lapsed |