Patent US4220655A successfully refreshed from Google Patents.
US4220655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pesticidal 5-oxo-2,5 dihydropyrrole
Assignee: Novartis Corp
•
Filing: 1978-11-20
•
Granted: 1980-09-02
•
Expires: 1998-11-20
Abstract
Abstract The present invention relates to novel 3,4-dimethyl-2-hydroxy-5-oxo-2,5-dihydropyrrole compounds substituted on the nitrogen atom, to processes for producing them, to their use in agriculture for combating animal and plant pests and also for regulating plant growth, and to compositions containing these novel pyrrole compounds. The novel 3,4-dimethyl-2-hydroxy-5-oxo-2,5-dihydropyrrole compounds substituted on the nitrogen atom correspond to the formula ##STR1## wherein A represents the hydroxyl group, a halogen atom or an O-acyl radical, and R represents an aryl radical, an aralkyl radical, or an heteroaromatic radical which has 5-6 ring members and which is bound by way of a carbon atom.
Inventors
- 👤 Beat Bohner
- 👤 Marcus Baumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:41
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/44; C07D207/444; C07D207/448; A; A01; A01N; A01N43/00; A01N43/34; A01N43/36; A01N43/40; A01N43/48; A01N43/54; A01N43/60; A01N43/72; A01N43/74; A01N43/82; A01N47/00; A01N47/02; A01N47/06; A01N47/08; A01N47/10; A01N47/18; A01N47/22; A01N53/00; C07D207/30; C07D207/34; C07D207/36; C07D207/38
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
183 words
A 3,4-dimethyl-2-hydroxy-5-oxo-2,5-dihydropyrrole compound of the formula I ##STR14## wherein A represents the hydroxyl group, a halogen atom or an O-acyl radical, wherein said acyl portion is derived from (C 1 -C 12 alkyl) carboxylic acid, (C 1 -C 12 alkyl) carboxylic acid substituted by halogen or having the alkyl group interrupted by oxygen or a -CO- group, (C 2 -C 12 alkenyl) carboxylic acid, (C 3 -C 6 cycloalkyl) carboxylic acid, (C 1 -C 4 alkoxy-) or (C 1 -C 4 alkylthio-) carboxylic acid, mono- or di-substituted (C 1 -C 4 alkyl) carbamoyloxy acid, or benzoic acid; and R represents phenyl, naphthyl, benzyl or phenethyl, or phenyl, naphthyl, benzyl or phenethyl substituted by halogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy, C 1 -C 4 alkylthio, C 2 -C 4 alkenyloxy, C 1 -C 4 haloalkyl, C 2 -C 4 haloalkenyl, C 3 -C 4 alkynyl, C 3 -C 4 alkynyloxy, phenyl, phenoxy, benzyloxy, nitro, cyano, hydroxyl, mercapto, carboxyl, benzoyl, acetamido, C 1 -C 4 alkylcarbamoyloxy, amino mono- or di-substituted (C 1 -C 4 alkyl) amino, sulphinyl, sulphonyl or sulphamoyl.
Claim 2
Dependent Claim
183 words
A 3,4-dimethyl-2-hydroxy-5-oxo-2,5-dihydropyrrole compound of the formula I ##STR14## wherein A represents the hydroxyl group, a halogen atom or an O-acyl radical, wherein said acyl portion is derived from (C 1 -C 12 alkyl) carboxylic acid, (C 1 -C 12 alkyl) carboxylic acid substituted by halogen or having the alkyl group interrupted by oxygen or a -CO- group, (C 2 -C 12 alkenyl) carboxylic acid, (C 3 -C 6 cycloalkyl) carboxylic acid, (C 1 -C 4 alkoxy-) or (C 1 -C 4 alkylthio-) carboxylic acid, mono- or di-substituted (C 1 -C 4 alkyl) carbamoyloxy acid, or benzoic acid; and R represents phenyl, naphthyl, benzyl or phenethyl, or phenyl, naphthyl, benzyl or phenethyl substituted by halogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy, C 1 -C 4 alkylthio, C 2 -C 4 alkenyloxy, C 1 -C 4 haloalkyl, C 2 -C 4 haloalkenyl, C 3 -C 4 alkynyl, C 3 -C 4 alkynyloxy, phenyl, phenoxy, benzyloxy, nitro, cyano, hydroxyl, mercapto, carboxyl, benzoyl, acetamido, C 1 -C 4 alkylcarbamoyloxy, amino mono- or di-substituted (C 1 -C 4 alkyl) amino, sulphinyl, sulphonyl or sulphamoyl.
Claim 3
Dependent Claim
14 words
The compounds of the formula I, claim 1, wherein A represents the OH group.
Claim 4
Dependent Claim
19 words
The compound of the formula I, claim 1, wherein R represents phenyl or phenyl substituted by the indicated substituents.
Claim 5
Dependent Claim
33 words
Composition for combatting plant and animal pests, which composition contains as active substance a pesticidally effective amount of a 3,4-dimethyl-2-hydroxy-5-oxo-2,5-dihydro-pyrrole compound of the formula I, claim 1, together with a suitable carrier therefor.
Claim 6
Dependent Claim
29 words
A method for combatting plant and animal pests which comprises applying to the locus thereof a pesticidally effective amount of a 3,4-dimethyl-2-hydroxy-5-oxo-2,5-dihydro-pyrrole compound of the formula I, claim 1.
References Cited (Backward Citations)
US3673211A
Cited
US4107174A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-02 | 1984-03-03 | 1984-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-02 | 1988-03-03 | 1988-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-02 | 1992-03-03 | 1992-09-02 | $7700.00 | Window Closed / Lapsed |