Fungicide mixtures based on pyridine amides and fenarimol

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reexamination Certificate

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C514S345000, C514S348000, C514S350000, C514S355000

Reexamination Certificate

active

06372748

ABSTRACT:

The present invention relates to fungicidal mixtures for controlling harmful fungi and also to methods for controlling harmful fungi using such mixtures.
WO 97/08952 describes mixtures of amide compounds of the formula I
A—CO—NR
1
R
2
  (I)
in which
A is an aryl group or an aromatic or nonaromatic, 5- or 6-membered heterocycle which has from 1 to 3 hetero atoms selected from O, N and S; where the aryl group or the heterocycle may or may not have 1, 2 or 3 substituents which are selected, from alkyl, halogen, CHF
2
, CF
3
, alkoxy, haloalkoxy, alkylthio, alkylsulfynyl and alkylsulfonyl;
R
1
is a hydrogen atom;
R
2
is a phenyl or cycloalkyl group which may or may not have 1, 2 or 3 substituents which are selected, from alkyl, alkenyl, alkynyl, alkoxy, alkenyloxy, alkynyloxy, cycloalkyl, cycloalkenyl, cycloalkyloxy, cycloalkenyloxy, phenyl and halogen, where the aliphatic and cycloaliphatic radicals may be partially or fully halogenated and/or the cycloaliphatic radicals may be substituted by from 1 to 3 alkyl groups and where the phenyl group may have from 1 to 5 halogen atoms and/or from 1 to 3 substituents which are selected, independently of one another, from alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio and haloalkylthio, and where the amidic phenyl group may be condensed with a saturated 5-membered ring which may be substituted by one or more alkyl groups and/or may have a hetero atom selected from O and S, and the active ingredient fenazaquin known as an acaricide.
(±)-(2-Chlorophenyl)(4-chlorophenyl)(pyrimidin-5-yl)methanol (common name: fenarimol), its preparation and its action against harmful fungi are known from the literature (GB-A 1,218,623).
It is an object of the present invention to provide other fungicidal mixtures for controlling harmful fungi and in particular for certain applications.
We have found that this object is achieved by a mixture which comprises as active ingredients amide compounds of the formula I defined at the outset and as further fungicidally active component fenarimol.
The mixtures according to the invention have synergistic action and are therefore particularly suitable for controlling harmful fungi and in particular powdery mildew fungi in vegetables and grapevines.
In the context of the present invention, halogen is fluorine, chlorine, bromine and iodine and is in particular fluorine, chlorine and bromine.
The term “alkyl” includes straight-chain and branched alkyl groups. These are preferably straight-chain or branched C
1
-C
12
-alkyl and in particular C
1
-C
6
-alkyl groups. Examples of alkyl groups are alkyl such as, in particular, methyl, ethyl, propyl, 1-methylethyl, butyl, 1-methylpropyl, 2-methylpropyl, 1,1-dimethylethyl, n-pentyl, 1-methylbutyl, 2-methylbutyl, 3-methylbutyl, 1,2-dimethylpropyl, 1,1-dimethylpropyl, 2,2-dimethylpropyl, 1-ethylpropyl, n-hexyl, 1-methylpentyl, 2-methylpentyl, 3-methylpentyl, 4-methylpentyl, 1,2-dimethylbutyl, 1,3-dimethylbutyl, 2,3-dimethylbutyl, 1,1-dimethylbutyl, 2,2-dimethylbutyl, 3,3-dimethylbutyl, 1,1,2-trimethylpropyl, 1,2,2-trimethylpropyl, 1-ethylbutyl, 2-ethylbutyl, 1-ethyl-2-methylpropyl, n-heptyl, 1-methylhexyl, 1-ethylpentyl, 2-ethylpentyl, 1-propylbutyl, octyl, decyl, dodecyl.
Haloalkyl is an alkyl group as defined above which is partially or fully halogenated by one or more halogen atoms, in particular by fluorine and chlorine. Preferably, there are from 1 to 3 halogen atoms present, and the difluoromethyl or the tri-fluoromethyl group is particularly preferred.
The above statements for the alkyl group and the haloalkyl group apply in a corresponding manner to the alkyl and haloalkyl groups in alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfynyl and alkylsulfonyl.
The alkenyl group includes straight-chain and branched alkenyl groups. These are preferably straight-chain or branched C
3
-C
12
-alkenyl groups and in particular C
3
-C
6
-alkenyl groups. Examples of alkenyl groups are 2-propenyl, 2-butenyl, 3-butenyl, 1-methyl-2-propenyl, 2-methyl-2-propenyl, 2-pentenyl, 3-pentenyl, 4-pentenyl, 1-methyl-2-butenyl, 2-methyl-2-butenyl, 3-methyl-2-butenyl, 1-methyl-3-butenyl, 2-methyl-3-butenyl, 3-methyl-3-butenyl, 1,1-dimethyl-2-propenyl, 1,2-dimethyl-2-propenyl, 1-ethyl-2-propenyl, 2-hexenyl, 3-hexenyl, 4-hexenyl, 5-hexenyl, 1-methyl-2-pentenyl, 2-methyl-2-pentenyl, 3-methyl-2-pentenyl, 4-methyl-2-pentenyl, 1-methyl-3-pentenyl, 2-methyl-3-pentenyl, 3-methyl-3-pentenyl, 4-methyl-3-pentenyl, 1-methyl-4-pentenyl, 2-methyl-4-pentenyl, 3-methyl-4-pentenyl, 4-methyl-4-pentenyl, 1,1-dimethyl-2-butenyl, 1,1-dimethyl-3-butenyl, 1,2-dimethyl-2-butenyl, 1,2-dimethyl-3-butenyl, 1,3-dimethyl-2-butenyl, 1,3-dimethyl-3-butenyl, 2,2-dimethyl-3-butenyl, 2,3-dimethyl-2-butenyl, 2,3-dimethyl-3-butenyl, 1-ethyl-2-butenyl, 1-ethyl-3-butenyl, 2-ethyl-2-butenyl, 2-ethyl-3-butenyl, 1,1,2-trimethyl-2-propenyl, 1-ethyl-1-methyl-2-propenyl and 1-ethyl-2-methyl-2-propenyl, in particular 2-propenyl, 2-butenyl, 3-methyl-2-butenyl and 3-methyl-2-pentenyl.
The alkenyl group may be partially or fully halogenated by one or more halogen atoms, in particular by fluorine or chlorine. The alkenyl group preferably has from 1 to 3 halogen atoms.
The alkynyl group includes straight-chain and branched alkynyl groups. These are preferably straight-chain and branched C
3
-C
12
-alkynyl groups and in particular C
3
-C
6
-alkynyl groups. Examples of alkynyl groups are 2-propynyl, 2-butynyl, 3-butynyl, 1-methyl-2-propynyl, 2-pentynyl, 3-pentynyl, 4-pentynyl, 1-methyl-3-butynyl, 2-methyl-3-butynyl, 1-methyl-2-butynyl, 1,1-dimethyl-2-propynyl, 1-ethyl-2-propynyl, 2-hexynyl, 3-hexynly, 4-hexynyl, 5-hexynyl, 1-methyl-2-pentynyl, 1-methyl-3-pentynly, 1-methyl-4-pentynyl, 2-methyl-3-pentynyl, 2-methyl-4-pentynly, 3-methyl-4-pentynyl, 4-methyl-2-pentynyl, 1,2-dimethyl-2-butynyl, 1,1-dimethyl-3-butynyl, 1,2-dimethyl-3-butynyl, 2,2-dimethyl-3-butynyl, 1-ethyl-2-butynyl, 1-ethyl-3-butynyl, 2-ethyl-3-butynyl and 1-ethyl-1-methyl-2-propynyl.
The above statements for the alkenyl group and its halogen substituents and for the alkynyl group apply in a corresponding manner to alkenyloxy and alkynyloxy.
The cycloalkyl group is preferably a C
3
-C
6
-cycloalkyl group, such as cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl. If the cycloalkyl group is substituted, it preferably has from 1 to 3 C
1
-C
4
-alkyl radicals as substituents.
Cycloalkenyl is preferably a C
4
-C
6
-cycloalkenyl group, such as cyclobutenyl, cyclopentenyl or cyclohexenyl. If the cycloalkenyl group is substituted, it preferably has from 1 to 3 C
1
-C
4
-alkyl radicals as substituents.
A cycloalkoxy group is preferably a C
5
-C
6
-cycloalkoxy group, such as cyclopentyloxy or cyclohexyloxy. If the cycloalkoxy group is substituted, it preferably has from 1 to 3 C
1
-C
4
-alkyl radicals as substituents.
The cycloalkenyloxy group is preferably a C
5
-C
6
-cycloalkenyloxy group, such as cyclopentyloxy or cyclohexyloxy. If the cycloalkenyloxy group is substituted, it preferably has from 1 to 3 C
1
-C
4
-alkyl radicals as substituents.
Aryl is preferably phenyl.
If A is a phenyl group, this may have one, two or three of the abovementioned substituents in any position. These substituents are preferably selected, independently of one another, from alkyl, difluoromethyl, trifluoromethyl and halogen, in particular chlorine, bromine and iodine. Particularly preferably, the phenyl group has a substituent in the 2-position.
If A is a 5-membered heterocycle, it is in particular a furyl, thiazolyl, pyrazolyl, imidazolyl, oxazolyl, thienyl, triazolyl or thiadiazolyl radical or the corresponding dihydro or tetrahydro derivatives thereof. Preference is given to a thiazolyl or pyrazolyl radical.
If A is a 6-membered heterocycle, it is in particular a pyridyl radical or a radical of the formula:
in which one of the radicals X and Y is O, S or NR
9
, where R
9
is H or alkyl, and the other of the radicals X and Y is CH
2
, S, SO, SO
2
or NR
9
. The dotted line means that a double bond may or may not be present.
The 6-membered aromatic heterocycle is particularly preferably a

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