US4670042A
Expired / Lapsed
US
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Tetrahydrophthalimides, and their production and use as herbicides
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1985-10-02
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Granted: 1987-06-02
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Expires: 2005-10-02
Abstract
Abstract A compound of the formula: <IMAGE> wherein R1 is a C1-C5 alkyl group, a C3-C5 alkenyl group, a C3-C5 alkynyl group or a C1-C3 alkoxymethyl group, X is a hydrogen atom, a fluorine atom or a chlorine atom and A is a group of the formula: <IMAGE> in which R2 is a hydrogen atom or a methyl group, R3 is a hydrogen atom or a methyl group and the nitrogen atom is bonded to the benzene ring, which is useful as a herbicide.
Inventors
- 👤 Toru Haga
- 👤 Eiki Nagano
- 👤 Ryo Sato
- 👤 Kouichi Morita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:40
CPC Classifications
C; C07; C07D; C07D403/00; C07D403/02; C07D403/04; A; A01; A01N; A01N43/00; A01N43/48; A01N43/60; C07D209/00; C07D209/02; C07D209/44; C07D209/48
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
92 words
A compound of the formula: ##STR16## wherein R 1 is a C 1 -C 5 alkyl group, a C 3 -C 5 alkenyl group, a C 3 -C 5 alkynyl group or a C 1 -C 3 alkoxymethyl group, X is a hydrogen atom, a fluorine atom or a chlorine atom and A is a group of the formula: ##STR17## in which R 2 is a hydrogen atom or a methyl group, R 3 is a hydrogen atom or a methyl group and the nitrogen atom is bonded to the benzene ring.
Claim 2
Dependent Claim
92 words
A compound of the formula: ##STR16## wherein R 1 is a C 1 -C 5 alkyl group, a C 3 -C 5 alkenyl group, a C 3 -C 5 alkynyl group or a C 1 -C 3 alkoxymethyl group, X is a hydrogen atom, a fluorine atom or a chlorine atom and A is a group of the formula: ##STR17## in which R 2 is a hydrogen atom or a methyl group, R 3 is a hydrogen atom or a methyl group and the nitrogen atom is bonded to the benzene ring.
Claim 3
Dependent Claim
12 words
The compound according to claim 1, wherein X is a fluorine atom.
Claim 4
Dependent Claim
13 words
The compound according to claim 1, wherein A --CH 2 --NH-- or --CH═N--.
Claim 5
Dependent Claim
27 words
The compound according to claim 1, wherein A is --CH 2 --NH-- or --CH═N-- and R 1 is --CH 2 C.tbd.CH or --CH 2 CH═CH 2 .
Claim 6
Dependent Claim
9 words
The compound according to claim 1, which is 2-[1-(2-propenyl)-2(1H)-quinoxalinon-7-yl]-4,5,6,7-tetrahydro-2H-isoindole-1,3-dione.
Claim 7
Dependent Claim
9 words
The compound according to claim 1, which is 2-[3,4-dihydro-1-(2-propynyl)-2(1H)-quinoxalinon-7-yl]-4,5,6,7-tetrahydro-2H-isoindole-1,3-dione.
Claim 8
Dependent Claim
9 words
The compound according to claim 1, which is 2-[6-fluoro-1-(2-propenyl)-2(1H)-quinoxalinon-7-yl]-4,5,6,7-tetrahydro-2H-isoindole-1,3-dione.
Claim 9
Dependent Claim
9 words
The compound according to claim 1, which is 2-[3,4-dihydro-6-fluoro-1-(2-propynyl)-2(1H)-quinoxalinon-7-yl]-4,5,6,7-tetrahydro-2H-isoindole-1,3-dione.
Claim 10
Dependent Claim
25 words
A composition which comprises as an active ingredient a herbicidally effective amount of the compound according to claim 1, and an inert carrier or diluent.
Claim 11
Independent Claim
33 words
A method for exterminating harmful weeds which comprises applying as an active ingredient a herbicidally effective amount of the compound according to claim to the area where the weeds grow or will grow.
Claim 12
Dependent Claim
55 words
A compound of the formula: ##STR18## wherein X is a hydrogen atom, a fluorine atom or a chlorine atom and A is ##STR19## in which R 2 is a hydrogen atom or a methyl group, R 3 is a hydrogen atom or a methyl group and the nitrogen atom is bonded to the benzene ring.
Claim 13
Dependent Claim
55 words
A compound of the formula: ##STR18## wherein X is a hydrogen atom, a fluorine atom or a chlorine atom and A is ##STR19## in which R 2 is a hydrogen atom or a methyl group, R 3 is a hydrogen atom or a methyl group and the nitrogen atom is bonded to the benzene ring.
Claim 14
Dependent Claim
34 words
A method for exterminating harmful weeds which comprises applying as an active ingredient a herbicidally effective amount of the compound according to claim 8 to the area where the weeds grow or will grow.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-01 | 1990-12-01 | 1991-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-01 | 1994-12-01 | 1995-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-01 | 1998-12-01 | 1999-06-02 | $7700.00 | Window Closed / Lapsed |