Herbicidal 1-pyridylpyrazole compounds

Details Herbicidal 1-pyridylpyrazole compounds Herbicidal 1-pyridylpyrazole compounds

1992-09-04

1993-11-16

Ivy, C. Warren

Plant protecting and regulating compositions

Plant growth regulating compositions

Plural active ingredients

546278, C07D21302, A01N 4356

Patent

active

052623823

ABSTRACT:
This application discloses herbicidal 1-arylpyrazoles, compositions containing them, methods of preparing them, and methods for controlling undesired plant growth by preemergent or postemergent application of the herbicidal compositions to the locus where control is desired. The herbicidal compounds have the following generic structure: ##STR1## in which Ar is ##STR2## R is chlorine, cyano, or nitro; R.sup.1 is a group --C(O)CR.sup.11 R.sup.12 --O--R.sup.13 in which R.sup.11 and R.sup.12 are independently hydrogen or alkyl; R.sup.13 is hydrogen, alkylcarbonyl, phenylcarbonyl, phenylmethyl, or alkylaminosulfonyl; R.sup.2 is hydrogen, alkyl, alkylcarbonyl, alkoxycarbonyl, or a group --C(O)CR.sup.11 R.sup.12 --O--R.sup.13 ; R.sup.3, R.sup.4, R.sup.6, R.sup.7 are independently hydrogen or halogen; R.sup.5 is halogen or haloalkyl; R.sup.8 is halogen; R.sup.9 is haloalkyl; R.sup.10 is hydrogen, halogen, or a group --NR.sup.14 R.sup.15 in which R.sup.14 is hydrogen or alkyl; R.sup.15 is alkyl, alkynyl, or a group --CHR.sup.16 --Ar.sup.1 in which R.sup.16 is hydrogen or alkyl; and Ar.sup.1 is tetrahydrofuran-2-yl; furan-2-yl, thien-2-yl, phenyl, or phenyl substituted with halogen or alkoxy. When R.sup.10 is a group --NR.sup.14 R.sup.15, in addition to the substituents listed above, R.sup.1 may be alkylcarbonyl, haloalkylcarbonyl, or cycloalkylcarbonyl; and R.sup.2 may be hydrogen, alkylcarbonyl, or cycloalkylcarbonyl.

REFERENCES:
patent: 4614533 (1986-09-01), Schnaller et al.
patent: 4772210 (1988-09-01), Stetter et al.
patent: 4772312 (1988-09-01), Schallner et al.
patent: 4774254 (1988-09-01), Stetter et al.
patent: 4812165 (1989-03-01), Schallner et al.

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