US4619686A
Expired / Lapsed
US
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Pyridazinylurea compounds and methods of use as herbicides
Assignee: Eli Lilly and Co
•
Filing: 1984-07-17
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Granted: 1986-10-28
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Expires: 2004-07-17
Abstract
Abstract This invention describes noval pyridazinylurea compounds, which are useful as herbicides.
Inventors
- 👤 Riaz F. Abdulla
- 👤 Jack G. Samaritoni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:17
CPC Classifications
A; A01; A01N; A01N47/00; A01N47/08; A01N47/28; A01N47/36; C; C07; C07D; C07D237/00; C07D237/02; C07D237/06; C07D237/10; C07D237/20; C07D237/22
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
79 words
A compound of the formula ##STR7## wherein R 2 is hydrogen; R 3 and R 4 are independently C 1 -C 3 alkyl, C 1 -C 3 alkoxy, C 2 -C 4 alkenyl, hydroxy(C 1 -C 4 alkyl) or (C 1 -C 6 acyloxy)C 1 -C 6 alkyl; m is 1 or 2; and when m is 1, R 1 represents l,ldimethylethyl, and when m is 2, one R 1 represents 1,1-dimethylethyl and the other R 1 represents chloro.
Claim 2
Dependent Claim
79 words
A compound of the formula ##STR7## wherein R 2 is hydrogen; R 3 and R 4 are independently C 1 -C 3 alkyl, C 1 -C 3 alkoxy, C 2 -C 4 alkenyl, hydroxy(C 1 -C 4 alkyl) or (C 1 -C 6 acyloxy)C 1 -C 6 alkyl; m is 1 or 2; and when m is 1, R 1 represents l,ldimethylethyl, and when m is 2, one R 1 represents 1,1-dimethylethyl and the other R 1 represents chloro.
Claim 3
Dependent Claim
11 words
A compound of claim 1 wherein R m 1 is 6-chloro-5-(1,1-dimethylethyl).
Claim 4
Dependent Claim
8 words
The compound of claim 2 which is N'-[6-chloro-5-(1,1-dimethylethyl)-3-pyridazinyl]-N-methoxy-N-methylurea.
Claim 5
Dependent Claim
8 words
The compound of claim 2 which is N-[2-(acetyloxy)ethyl]-N'-[6-chloro-5-(1,1-dimethylethyl)-3-pyridazinyl]-N-methylurea.
Claim 6
Dependent Claim
8 words
The compound of claim 2 which is N'-[6-chloro-5-(1,1-dimethylethyl)-3-pyridazinyl]-N-(2-hydroxyethyl)-N-methylurea.
Claim 7
Independent Claim
109 words
A method of inhibiting the growth of unwanted vegetation which comprises contacting the vegetation or the soil in which the vegetation is growing with an effective amount of a compound of the formula ##STR8## wherein R 2 is hydrogen; R 5 and R 6 are independpently hydrogen, C 1 -C 3 alkyl, C 1 -C 3 alkoxy, C 2 -C 4 alkenyl, hydroxy (C 1 -C 4 alkyl) or (C 1 -C 6 acyloxy)C 1 -C 6 alkyl; n is 1 or 2; and when n is 1, R 1 represents 1,1-dimethylethyl, and when n is 2, one R 1 represents 1,1-dimethylethyl and the other R 1 represents chloro.
Claim 8
Independent Claim
109 words
A method of inhibiting the growth of unwanted vegetation which comprises contacting the vegetation or the soil in which the vegetation is growing with an effective amount of a compound of the formula ##STR8## wherein R 2 is hydrogen; R 5 and R 6 are independpently hydrogen, C 1 -C 3 alkyl, C 1 -C 3 alkoxy, C 2 -C 4 alkenyl, hydroxy (C 1 -C 4 alkyl) or (C 1 -C 6 acyloxy)C 1 -C 6 alkyl; n is 1 or 2; and when n is 1, R 1 represents 1,1-dimethylethyl, and when n is 2, one R 1 represents 1,1-dimethylethyl and the other R 1 represents chloro.
Claim 9
Dependent Claim
14 words
The method of claim 6 employing a compound wherein R m 1 is 6-chloro-5-(1,1-dimethylethyl).
Claim 10
Dependent Claim
10 words
The method of claim 7 wherein the compound is N'-[6-chloro-5-(1,1-dimethylethyl)-3-pyridazinyl]-N,N-dimethylurea.
Claim 11
Dependent Claim
10 words
The method of claim 7 wherein the compound is N'-[6-chloro-5-(1,1-dimethylethyl)-3-pyridazinyl]-N-methoxy-N-methylurea.
Claim 12
Dependent Claim
10 words
The method of claim 7 wherein the compound is N-[2-(acetyloxy)ethyl]-N'-[6-chloro-5-(1,1-dimethylethyl)-3-pyridazinyl]-N-methylurea.
Claim 13
Dependent Claim
10 words
The method of claim 7 wherein the compound is N'-6-chloro-5-(1,1-dimethylethyl)-3-pyridazinyl]-N-(2-hydroxyethyl)-N-methylurea.
Claim 14
Dependent Claim
14 words
A formulation which comprises a compound of claim 1 and an agriculturally-acceptable carrier therefor.
Claim 15
Dependent Claim
14 words
The formulation of claim 12 comprising a compound wherein R m 1 is 6-chloro-5-(1,1-dimethylethyl).
Claim 16
Dependent Claim
10 words
The formulation of claim 13 wherein the compound is N'-[6-chloro-5-(1,1-dimethylethyl)-3-pyridazinyl]-N-methoxy-N-methylurea.
Claim 17
Dependent Claim
10 words
The formulation of claim 13 wherein the compound is N-[2-(acetyloxy)ethyl]-N'-[6-chloro-5-(1,1-dimethylethyl)-3-pyridazinyl]-N-methylurea.
Claim 18
Dependent Claim
10 words
The formulation of claim 13 wherein the compound is N'-[6-chloro-5-(1,1-dimethylethyl)-3-pyridazinyl]-N-(2-hydroxyethyl)-N-methylurea.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1989-10-27 | 1990-04-28 | 1990-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-27 | 1994-04-28 | 1994-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-27 | 1998-04-28 | 1998-10-28 | $7700.00 | Window Closed / Lapsed |