US4315766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4H-3,1-Benzoxazine derivatives
Assignee: BASF SE
•
Filing: 1980-04-08
•
Granted: 1982-02-16
•
Expires: 2000-04-08
Abstract
Abstract 4H-3,1-Benzoxazine derivatives of the formula ##STR1## where R 1 , R 2 and Y have the meanings given in the specification, and their use for controlling unwanted plant growth in numerous crops, such as cereals, Indian corn, soybeans and cotton.
Inventors
- 👤 Gerhard Hamprecht
- 👤 Bruno Wuerzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:31
CPC Classifications
C; C07; C07D; C07D265/00; C07D265/04; C07D265/12; C07D265/14; C07D265/20; C07D265/22; A; A01; A01N; A01N43/00; A01N43/72; A01N43/86; A01N47/00; A01N47/02; A01N47/04; A01N47/08; A01N47/28; A01N47/30; A01N47/40; A01N47/48; C07C; C07C205/00; C07C205/49; C07C205/57; C07C205/59; C07C43/00; C07C43/02; C07C43/20; C07C43/225; C07C65/00; C07C65/21
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
39 words
4H-3,1-Benzoxazine derivatives of the formula ##STR527## where Y is oxygen or sulfur, Ar(R 6 ) n , Ar denoting phenyl, R 6 denoting haloalkoxy or haloalkylmercapto, each of 1 to 4 carbon atoms, and n being 1 or 2.
Claim 2
Dependent Claim
39 words
4H-3,1-Benzoxazine derivatives of the formula ##STR527## where Y is oxygen or sulfur, Ar(R 6 ) n , Ar denoting phenyl, R 6 denoting haloalkoxy or haloalkylmercapto, each of 1 to 4 carbon atoms, and n being 1 or 2.
Claim 3
Dependent Claim
1 words
2-(p-Trifluoromethoxy-phenyl)-3,1-benzoxazin-4-one.
Claim 4
Dependent Claim
1 words
2-(p-Trifluoromethoxy-phenyl)-3,1-benzoxazin-4-one.
Claim 5
Dependent Claim
1 words
2-(m-Trifluoromethoxy-phenyl)-3,1-benzoxazin-4-one.
Claim 6
Dependent Claim
1 words
2-(m-Trifluoromethoxy-phenyl)-3,1-benzoxazin-4-one.
Claim 7
Dependent Claim
1 words
2-(m-1',1',2',2'-Tetrafluoroethoxy-phenyl)-3,1-benzoxazin-4-one.
Claim 8
Dependent Claim
1 words
2-(m-1',1',2',2'-Tetrafluoroethoxy-phenyl)-3,1-benzoxazin-4-one.
Claim 9
Dependent Claim
22 words
A herbicide comprising a solid and/or liquid inert carrier and a 4H-3,1-benzoxazine derivative of the formula I as claimed in claim 1.
Claim 10
Dependent Claim
33 words
A process for combating unwanted plant growth, wherein the plants or the soil are treated with a herbicidally effective amount of a 4H-3,1-benzoxazine derivative of the formula I as claimed in claim 1.
Claim 11
Dependent Claim
12 words
A compound as set forth in claim 1 wherein n is 1.
Claim 12
Dependent Claim
1 words
2-(m-chlorodifluoromethoxy-phenyl)-3,1-benzoxazin-4-one.
Claim 13
Dependent Claim
1 words
2-(m-chlorodifluoromethoxy-phenyl)-3,1-benzoxazin-4-one.
Claim 14
Dependent Claim
1 words
2-(m-trifluoromethylmercapto-phenyl)-3,1-benzoxazin-4-one.
Claim 15
Dependent Claim
1 words
2-(m-trifluoromethylmercapto-phenyl)-3,1-benzoxazin-4-one.
Claim 16
Dependent Claim
1 words
2-(m-chlorodifluoromethylmercapto-phenyl)-3,1-benzoxazin-4-one.
Claim 17
Dependent Claim
1 words
2-(m-chlorodifluoromethylmercapto-phenyl)-3,1-benzoxazin-4-one.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-02-15 | 1985-08-17 | 1986-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-15 | 1989-08-17 | 1990-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-15 | 1993-08-17 | 1994-02-16 | $7700.00 | Window Closed / Lapsed |