Composition and method of controlling undesired plant growth with substituted pyridinyloxy(thio)phenyl -acetamides, -ureas and urea derivatives
AssigneeThe Dow Chemical Company
InventorHoward Johnston
Life of this patent
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Abstract
Disclosed are novel substituted pyridinyloxy(thio)phenyl -acetamides, -ureas and urea derivatives, N-oxide derivatives thereof, and certain novel intermediates therefore. The compounds of the instant invention are useful as herbicides and can be formulated to provide herbicidal compositions.
Claims9
A composition comprising a herbicidally effective amount of a compound corresponding to the formula ##STR19## each p independently represents an integer of 0 or 1;
- each X independently represents bromo, chloro, iodo or fluoro;
- m represents an integer of 0 to 4, inclusive;
- each Y independently represents nitro, ZR.sup.3, ##STR20## n represents 1 or 2;
- each Z independently represents oxygen or sulfur;
- Q represents methyl, ethyl, halo, nitro or trifluoromethyl;
- each X' independently represents hydrogen or halo;
- R.sup.1 represents hydrogen, alkyl of from 1 to 4 carbon atoms or alkoxy of from 1 to 4 carbon atoms;
- R.sup.2 represents alkyl of from 1 to 3 carbons or ##STR21## R.sup.3 represents alkyl of from 1 to 3 carbon atoms;
- R.sup.4 and R.sup.5 each independently represent hydrogen or alkyl of from 1 to 4 carbon atoms;
- and
- each R.sup.6 represents halo or alkyl of from 1 to 3 carbon atoms.
The method of controlling undesired plant growth which comprises applying to plants and/or their habitats a herbicidally-effective amount of a compound of the formula ##STR22## wherein:
- each p independently represents an integer of 0 or 1;
- each X independently represents bromo, chloro, iodo or fluoro;
- m represents an integer of 0 to 4, inclusive;
- each Y independently represents nitro, ZR.sup.3, ##STR23## n represents 1 or 2;
- each Z independently represents oxygen or sulfur;
- Q represents methyl, ethyl, halo, nitro or trifluoromethyl;
- each X' independently represents hydrogen or halo;
- R.sup.1 represents hydrogen, alkyl of from 1 to 4 carbon atoms or alkoxy of from 1 to 4 carbon atoms;
- R.sup.2 represents alkyl of from 1 to 3 carbon atoms or ##STR24## R.sup.3 represents alkyl of from 1 to 3 carbon atoms;
- R.sup.4 and R.sup.5 each independently represent hydrogen or alkyl of from 1 to 4 carbon atoms;
- and
- each R.sup.6 represents halo or alkyl of from 1 to 3 carbon atoms.
The method of selectively controlling undesired plant growth in the presence of desired crop plants which comprises applying to plants and/or their habitats a herbicidally-effective amount of a compound of the formula:
- ##STR25## wherein:
- each p independently represents an integer of 0 or 1;
- each X independently represents bromo, chloro, iodo or fluoro;
- m represents an integer of 0 to 4, inclusive;
- each Y independently represents nitro, ZR.sup.3, ##STR26## n represents 1 or 2;
- each Z independently represents oxygen or sulfur;
- Q represents methyl, ethyl, halo, nitro or trifluoromethyl;
- each X' independently represents hydrogen or halo;
- R.sup.1 represents hydrogen, alkyl of from 1 to 4 carbon atoms or alkoxy of from 1 to 4 carbon atoms;
- R.sup.2 represents alkyl of from 1 to 3 carbon atoms or ##STR27## R.sup.3 represents alkyl of from 1 to 3 carbon atoms;
- R.sup.4 and R.sup.5 each independently represent hydrogen or alkyl of from 1 to 4 carbon atoms;
- and
- each R.sup.6 represents halo or alkyl of from 1 to 3 carbon atoms.
Dependencies are inferred from the claim text.