Arylpyrazole fungicides
AssigneeRhone-Poulenc Agrochimie
InventorsRaymond Peignier, Richard Cantegril
Life of this patent
Estimating the term…
Abstract
3-arylpyrazole derivatives of the formula ##STR1## in which X.sub.1, X.sub.2, X.sub.3, X.sub.4 and X.sub.5, which are the same or different, are H, Hal, nitro, alkyl, alkoxy, Y is H, Hal, nitro, CN, alkyl, alkoxy, alkylthio or an optionally substituted amino; Ra is H, R(alkyl, phenyl, Het), C(V)-V'Ro or C(V)NR.sub.0 R'.sub.0 where: V and V' are O, S; R.sub.0 and R'.sub.0, H, R, R' optionally substituted by .alpha., which can be GR.sub.1, NZ.sub.1 Z.sub.2, SO.sub.2 NZ.sub.1 Z.sub.2, CVZ.sub.1 Z.sub.2, Rb is H or can form with Ra a hydrocarbon ring of 4-6 C, R.sub.1 and R.sub.2 are H, R.sub.0, R.sub.3, G1-T1-Rc, C(O)R.sub.0, NTT'. Said fungicides are useful in agriculture.
Claims24
A compound having the formula ##STR16## wherein:
- Y is halogen or cyano;
- X.sub.1, X.sub.2, X.sub.3, X.sub.4 and X.sub.5, which are the same or different, are hydrogen, halogen, nitro, C.sub.1 -C.sub.4 alkyl, thiocyanato, amino, C.sub.2 -C.sub.5 alkenyl, C.sub.2 -C.sub.5 alkynyl or C.sub.1 -C.sub.4 alkoxy, with the proviso that at least one of the X substituents is other than hydrogen;
- Ra is hydrogen or C.sub.1 -C.sub.4 alkyl;
- Rb is hydrogen;
- R.sub.1 is a radical of the formula ##STR17## wherein V is oxygen or sulfur, A is hydrogen or methyl with the proviso that V is oxygen when A is methyl, and B is C.sub.1 -C.sub.14 alkyl, C.sub.3 -C.sub.7 cycloalkyl, (C.sub.3 -C.sub.7 cycloalkyl)(C.sub.1 -C.sub.8 alkyl), C.sub.6 -C.sub.10 aryl or aralkyl wherein the aryl portion has 6 to 10 carbon atoms and the alkyl portion has 1 to 8 carbon atoms;
- and
- R.sub.2 is C.sub.3 -C.sub.7 cycloalkyl, C.sub.1 -C.sub.6 alkyl, (C.sub.1 -C.sub.6 alkyl)amino(C.sub.1 -C.sub.6 alkyl), (C.sub.1 -C.sub.6 alkoxy)(C.sub.1 -C.sub.6 alkyl), (C.sub.3 -C.sub.7 cycloalkyl)(C.sub.1 -C.sub.6 alkyl), phenyl, phenyl(C.sub.1 -C.sub.4 alkyl), furfuryl, tetrahydrofurfuryl, thienyl(C.sub.1 -C.sub.4 alkyl) or morpholinyl(C.sub.1 -C.sub.4 alkyl).
A compound as claimed in claim 1, having the formula ##STR18## wherein X.sub.1, X.sub.2, X.sub.3, X.sub.4, V, A, B and R.sub.2 are as defined in claim 14.
Dependencies are inferred from the claim text.