Patent US4302242A successfully refreshed from Google Patents.
US4302242A
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Herbicidal mono- or di-substituted-2-pyridinyloxy-phenoxy-lower-alkane-carbamates
Assignee: Imperial Chemical Industries Ltd
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Filing: 1979-10-12
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Granted: 1981-11-24
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Expires: 1999-10-12
Abstract
Abstract Herbicidal pyridine compounds of the formula (I): <IMAGE> (I) wherein Z may be halogen, or a fluorine- or chlorine-substituted alkyl group of 1 to 4 carbon atoms, and Y may be hydrogen, halogen, or a fluorine- or chlorine-substituted alkyl group of 1 to 4 carbon atoms; X may be an OH group or an acyloxy group; a halogen atom; an amino group, a mono- or di-alkyl amino group, or an alkanoylamido group; an alkoxy group optionally substituted by hydroxy or alkoxy; or a mercapto group, an alkylthio group, or a phenylthio group. The invention also provides herbicidal compositions containing the compounds, and processes for making the compounds.
Inventors
- 👤 David Cartwright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:48
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/62; C07D213/63; C07D213/64; C07D213/643; A; A01; A01N; A01N43/00; A01N43/34; A01N43/40; C07D213/61; C07D213/72; C07D213/73
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
45 words
A herbicidal pyridine compound of the formula (I): ##STR9## wherein Z is trifluoromethyl and Y is hydrogen or chlorine; and X is --OCONR 2 R 3 wherein R 2 is hydrogen, C 1-4 alkyl or phenyl and R 3 is C 1-4 alkyl or phenyl.
Claim 2
Dependent Claim
45 words
A herbicidal pyridine compound of the formula (I): ##STR9## wherein Z is trifluoromethyl and Y is hydrogen or chlorine; and X is --OCONR 2 R 3 wherein R 2 is hydrogen, C 1-4 alkyl or phenyl and R 3 is C 1-4 alkyl or phenyl.
Claim 3
Dependent Claim
33 words
A process of inhibiting the growth of unwanted plants, which comprises applying to the locus of the plants, before their emergence, a compound as claimed in claim 1, in a herbicidally effective amount.
Claim 4
Dependent Claim
23 words
A process as claimed in claim 2, wherein the compound is applied at the rate of from 0.1 to 5 kilograms per hectare.
Claim 5
Dependent Claim
28 words
A herbicidal composition consisting essentially of as an active ingredient a compound as claimed in claim 1, in admixture with a carrier comprising a solid or liquid diluent.
References Cited (Backward Citations)
US4046553A
Cited
US4105435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-23 | 1985-05-25 | 1985-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-23 | 1989-05-25 | 1989-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-23 | 1993-05-25 | 1993-11-24 | $7700.00 | Window Closed / Lapsed |