Plant protecting and regulating compositions – Plant growth regulating compositions – Organic active compound containing
Patent
1993-11-16
1995-04-18
Dentz, Bernard
Plant protecting and regulating compositions
Plant growth regulating compositions
Organic active compound containing
504235, 504247, 504231, 504271, 544336, 546141, 546153, 546269, 548247, 548491, 549 23, 549 52, 549 54, 549 60, 549386, A01N 4314, C07D31190
Patent
active
054079012
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to certain herbicidal ethers, agriculturally suitable compositions thereof, and a method for their use as broad spectrum preemergent or postemergent herbicides.
New compounds effective for controlling the growth of undesired vegetation are in constant demand. In the most common situation, such compounds are sought to selectively control the growth of weeds in useful crops such as cotton, rice, corn, wheat and soybeans, to name a few. Unchecked weed growth in such crops can cause significant losses, reducing profit to the farmer and increasing costs to the consumer. In other situations, herbicides are desired which will control all plant growth. Examples of areas in which complete control of all vegetation is desired are areas around railroad tracks, storage tanks and industrial storage areas. There are many products commercially available for these purposes, but the search continues for products which are more effective, less costly and environmentally safe.
U.S. Pat. No. 4,670,041 discloses herbicidal compounds of the formula: ##STR1## wherein, inter alia:
Y is (--CR.sup.5 R.sup.6 --).sub.n in which n is 0, 1 or 2; and
R.sup.5 and R.sup.6 (in part) form an alkylene group containing 4 or 5 carbon atoms.
U.S. Pat. No. 4,828,603 discloses herbicidal compounds of the formula: ##STR2## wherein, inter alia:
X is O, S, NR or CH.sub.2 ; and
Y is (in part) CH.sub.2.
SUMMARY OF THE INVENTION
This invention pertains to compounds of Formulas I through XV including stereoisomers, suitable compositions containing them and their use as broad spectrum preemergence and postemergence herbicides ##STR3## wherein:
n is 2, 3 or 4;
m is 3, 4 or 5;
p is 2 or 3;
R.sup.1 is straight chain C.sub.1 -C.sub.3 alkyl;
R.sup.2 is H, C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl or C.sub.2 -C.sub.4 alkynyl;
R.sup.3 and R.sup.4 are independently H, C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl, C.sub.2 -C.sub.4 alkynyl or C.sub.1 -C.sub.3 alkyl substituted with OCH.sub.3 or OCH.sub.2 CH.sub.3 ;
R.sup.5 and R.sup.6 are independently H, OCH.sub.3 or C.sub.1 -C.sub.2 alkyl;
Q is CH.sub.2 W or ##STR4##
q and r are independently 0-2;
R.sup.7 is H, halogen, C.sub.1 -C.sub.3 alkyl, OR.sup.8, SR.sup.8 or CN;
R.sup.8 is C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 haloalkyl;
Z is CH.sub.2, NR.sup.9, O, S or may be CH and taken to form a double bond with an adjacent carbon;
R.sup.9 is H or C.sub.1 -C.sub.3 alkyl;
W is phenyl optionally substituted with 1-3 substituents selected from halogen, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy, OH, CN, C.sub.1 -C.sub.3 haloalkyl, C.sub.1 -C.sub.3 haloalkoxy, C.sub.1 -C.sub.3 alkylthio, C.sub.2 -C.sub.4 alkenyl and C.sub.2 -C.sub.4 alkynyl; or W is 5-, 6- or 7-membered heterocyclic ring containing 0-2 nitrogens, 0-2 oxygens or 0-2 sulfurs, each ring optionally substituted with 1-2 substituents selected from halogen, CH.sub.3 and OCH.sub.3 ;
1) the sum of q and r is 0-2;
2) if the sum of q and r is 0 then Z is CH.sub.2 ; and
3) if W is a heterocycle then the total number of heteroatoms contained within the heterocyclic rings is 3 or less.
Representative examples of the aforementioned heterocycles included in the definition of W include but are not limited to pyrrole, furan, thiophene, tetrahydropyran, tetrahydrofuran, isoxazole, oxazole, pyrazole, imidazole, thiazole, pyridine and pyrazine.
In the above definitions, the term "alkyl", used either alone or in compound words such as "haloalkyl" or "alkylthio", includes straight chain or branched alkyl, e.g., methyl, ethyl, n-propyl, isopropyl or the different butyl isomers.
"Alkoxy", "alkenyl" and "alkynyl" includes straight chain or branched isomers, e.g., ethoxy, n-propyloxy, isopropyloxy, 1-propenyl, 2-propenyl and 3-propenyl.
"Halogen", either alone or in compound words such as "haloalkyl", means fluorine, chlorine, bromine or iodine. Further, when used in compound words such as "haloalkyl" said alkyl may be partially or fully substituted with halogen atoms which may be the same or different. Exa
REFERENCES:
patent: 4670041 (1987-06-01), Payne et al.
patent: 4782169 (1988-11-01), Soloway et al.
patent: 4828603 (1989-05-01), Patel et al.
Dentz Bernard
E. I. Du Pont de Nemours
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