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US4452981A
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4-(2-Fluoro-4-halo-5-substituted phenyl)urazols, and their production and use
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1982-09-15
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Granted: 1984-06-05
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Expires: 2002-09-15
Abstract
Abstract A condensed phenylurazol of the formula: ##STR1## wherein X is a chlorine atom or a bromine atom, Y and Z are each an oxygen atom or a sulfur atom and R is a C 1 -C 3 alkyl group, an allyl group or a propargyl group and n is an integer of 4 or 5, which is useful as a herbicide.
Inventors
- 👤 Eiki Nagano
- 👤 Shunichi Hashimoto
- 👤 Ryo Yoshida
- 👤 Hiroshi Matsumoto
- 👤 Katsuzo Kamoshita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:21
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/04; A; A01; A01N; A01N43/00; A01N43/90; C07C; C07C205/00; C07C205/13; C07C205/26; C07C205/39; C07C205/42; C07C205/43; C07C265/00; C07C265/12; C07C331/00; C07C331/16; C07C331/28; C07D237/00; C07D237/02; C07D237/04; C07D249/00; C07D249/02; C07D249/08; C07D249/10; C07D249/12
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
50 words
A condensed phenylurazol of the formula: ##STR28## wherein X is a chlorine atom or a bromine atom, Y and Z are each an oxygen atom or a sulfur atom and R is a C 1 -C 3 alkyl group, an allyl group or a propargyl group and n is 4.
Claim 2
Dependent Claim
50 words
A condensed phenylurazol of the formula: ##STR28## wherein X is a chlorine atom or a bromine atom, Y and Z are each an oxygen atom or a sulfur atom and R is a C 1 -C 3 alkyl group, an allyl group or a propargyl group and n is 4.
Claim 3
Dependent Claim
19 words
The condensed phenylurazol according to claim 1, wherein at least one of Y and Z is an oxygen atom.
Claim 4
Dependent Claim
1 words
2-(4-Chloro-2-fluoro-5-methoxyphenyl)-5,6,7,8-tetrahydro-1H-[1,2,4]triazolo[1.2-a]pyridazine-1,3(2H)-dione.
Claim 5
Dependent Claim
1 words
2-(4-Chloro-2-fluoro-5-methoxyphenyl)-5,6,7,8-tetrahydro-1H-[1,2,4]triazolo[1.2-a]pyridazine-1,3(2H)-dione.
Claim 6
Dependent Claim
1 words
2-(4-Chloro-2-fluoro-5-methoxyphenyl)-5,6,7,8-tetrahydro-1H-[1,2,4]triazolo[1.2-a]pyridazine-3-thioxo-1(2H)-one.
Claim 7
Dependent Claim
1 words
2-(4-Chloro-2-fluoro-5-methoxyphenyl)-5,6,7,8-tetrahydro-1H-[1,2,4]triazolo[1.2-a]pyridazine-3-thioxo-1(2H)-one.
Claim 8
Dependent Claim
1 words
2-[4-Chloro-2-fluoro-5-(1-methylethoxy)-phenyl]-5,6,7,8-tetrahydro-1H-[1,2,4]triazolo[1,2-a]-pyridazine-1,3(2H)-dione.
Claim 9
Dependent Claim
1 words
2-[4-Chloro-2-fluoro-5-(1-methylethoxy)-phenyl]-5,6,7,8-tetrahydro-1H-[1,2,4]triazolo[1,2-a]-pyridazine-1,3(2H)-dione.
Claim 10
Dependent Claim
1 words
2-(4-Chloro-2-fluoro-5-propoxyphenyl)-5,6,7,8-tetrahydro-1H-[1,2,4]triazolo[1,2-a]pyridazine-1,3(2H)-dione.
Claim 11
Dependent Claim
1 words
2-(4-Chloro-2-fluoro-5-propoxyphenyl)-5,6,7,8-tetrahydro-1H-[1,2,4]triazolo[1,2-a]pyridazine-1,3(2H)-dione.
Claim 12
Dependent Claim
1 words
2-[4-Chloro-2-fluoro-5-(2-propynyloxy)-phenyl]-5,6,7,8-tetrahydro-1H-[1,2,4]triazolo[1,2-a]-pyridazine-1,3(2H)-dione.
Claim 13
Dependent Claim
1 words
2-[4-Chloro-2-fluoro-5-(2-propynyloxy)-phenyl]-5,6,7,8-tetrahydro-1H-[1,2,4]triazolo[1,2-a]-pyridazine-1,3(2H)-dione.
Claim 14
Dependent Claim
21 words
A herbicidal composition which comprises a herbicidally effective amount of the condensed phenylurazol according to claim 1 and an inert carrier.
Claim 15
Dependent Claim
32 words
A method for controlling or exterminating weeds which comprises applying a herbicidally effective amount of the condensed phenylurazol according to claim 1 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) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |