Patent US4255182A successfully refreshed from Google Patents.
US4255182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aminosulfonylthiadiazolylureas
Assignee: Velsicol Chemical LLC
•
Filing: 1980-03-10
•
Granted: 1981-03-10
•
Expires: 2000-03-10
Abstract
Abstract Disclosed are compounds of the formula ##STR1## wherein R 1 is alkyl, R 2 is selected from the group consisting of hydrogen and alkyl; or R 1 and R 2 together with the nitrogen atom form a cyclic ring structure having 4 or 5 carbon atoms; m is the integer 0 or 1; when m is 1, R 4 and R 5 are each independently selected from the group consisting of hydrogen and alkyl or up to 3 carbon atoms; when m is 0, R 4 is hydrogen and R 5 is the same as defined above; R 3 , R 6 , R 7 , R 8 , R 9 are each independently selected from the group consisting of hydrogen and alkyl; n is an integer from 0 to 2; and Z 1 and Z 2 are each independently selected from the group consisting of oxygen and sulfur. These compounds are useful as herbicides.
Inventors
- 👤 John Krenzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:57
CPC Classifications
C; C07; C07D; C07D285/00; C07D285/01; C07D285/02; C07D285/04; C07D285/12; C07D285/125; C07D285/135; A; A01; A01N; A01N47/00; A01N47/08; A01N47/28; A01N47/36; C07D317/00; C07D317/08; C07D317/10; C07D317/12; C07D317/14; C07D317/16; C07D317/28; C07D319/00; C07D319/04; C07D319/06; C07D339/00; C07D339/02; C07D339/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
156 words
A compound of the formula ##STR11## wherein R 1 is lower alkyl, R 2 is selected from the group consisting of hydrogen and lower alkyl; or R 1 and R 2 together with the nitrogen atom form a cyclic ring structure having 4 or 5 carbon atoms and one nitrogen atom; m is the integer 0 or 1; when m is 1, R 4 and R 5 are each independently selected from the group consisting of hydrogen and lower alkyl of up to 3 carbon atoms; when m is 0, R 4 is hydrogen and R 5 is the same as defined above, R 3 , R 6 , R 7 , R 8 , R 9 are each independently selected from the group consisting of hydrogen and lower alkyl; n is an integer from 0 to 2; and Z 1 and Z 2 are each independently selected from the group consisting of oxygen and sulfur.
Claim 2
Dependent Claim
156 words
A compound of the formula ##STR11## wherein R 1 is lower alkyl, R 2 is selected from the group consisting of hydrogen and lower alkyl; or R 1 and R 2 together with the nitrogen atom form a cyclic ring structure having 4 or 5 carbon atoms and one nitrogen atom; m is the integer 0 or 1; when m is 1, R 4 and R 5 are each independently selected from the group consisting of hydrogen and lower alkyl of up to 3 carbon atoms; when m is 0, R 4 is hydrogen and R 5 is the same as defined above, R 3 , R 6 , R 7 , R 8 , R 9 are each independently selected from the group consisting of hydrogen and lower alkyl; n is an integer from 0 to 2; and Z 1 and Z 2 are each independently selected from the group consisting of oxygen and sulfur.
Claim 3
Dependent Claim
8 words
The compound of claim 1 which is, N-[5-(N,N-dimethylaminosulfonyl)-1,3,4-thiadiazol-2-yl]-N'-(1,3-dioxolan-2-ylmethyl)-N'-methylurea.
Claim 4
Dependent Claim
8 words
The compound of claim 1 which is N-[5-(N,N-dimethylaminosulfonyl)-1,3,4-thiadiazol-2-yl]-N'-[1,3-dioxolan-2-yl)ethyl]-N'-methylurea.
Claim 5
Dependent Claim
8 words
The compound of claim 1 which is N-[5-(N,N-dimethylaminosulfonyl)-1,3,4-thiadiazol-2-yl]-N'-(4,5-dimethyl-1,3-dioxolan-2-ylmethyl)-N'-methylurea.
Claim 6
Dependent Claim
8 words
The compound of claim 1 which is N-[5-(N,N-dimethylaminosulfonyl)-1,3,4-thiadiazol-2-yl]-N'-(4-methyl-1,3-dioxan-2-ylmethyl)-N'-methylurea.
Claim 7
Dependent Claim
8 words
The compound of claim 1 which is, N-[5-(N,N-dimethylaminosulfonyl)-1,3,4-thiadiazol-2-yl]-N'-[2,2-dimethyl-2-(1,3-dioxolan-2-yl)ethyl]-N'-methylurea.
Claim 8
Dependent Claim
8 words
The compound of claim 1 which is, N-[5-(N,N-dimethylaminosulfonyl)1,3,4-thiadiazol-2-yl]-N'-[2,2-dimethyl-2-(4-methyl-1,3-dioxolan-2-yl)ethyl]-N'-methylurea.
Claim 9
Dependent Claim
8 words
The compound of claim 1 which is, N-[5-(N,N-dimethylaminosulfonyl)-1,3,4-thiadiazol-2-yl]-N'-[2,2-dimethyl-2-(4-methyl-1,3-dioxolan-2-yl)ethyl]-N'-methylurea.
Claim 10
Dependent Claim
24 words
A herbicidal composition comprising an inert carrier and, as an essential active ingredient, in a quantity toxic to weeds, a compound of claim 1.
Claim 11
Dependent Claim
35 words
A method of controlling weeds which comprises contacting said weeds with a herbicidal composition comprising an inert carrier and, as the essential active ingredient, in a quantity toxic to weeds, a compound of claim 1.
References Cited (Backward Citations)
US3726892A
Cited
US3856503A
Cited
US3901902A
Cited
US3951640A
Cited
US3946045A
Cited
US4012222A
Cited
US3990881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-09 | 1984-09-08 | 1985-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-09 | 1988-09-08 | 1989-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-09 | 1992-09-08 | 1993-03-10 | $7700.00 | Window Closed / Lapsed |