Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2001-06-04
2002-07-23
Robinson, Allen J. (Department: 1616)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C514S407000, C514S514000, C514S515000, C514S522000, C514S617000
Reexamination Certificate
active
06423733
ABSTRACT:
The present invention relates to a fungicidal mixture which comprises
a) a phenyl benzyl ether derivative of the formula I.a, I.b or I.c,
and/or a carbamate of the formula Id
where X is CH or N, n is 0, 1 or 2 and R is halogen, C
1
-C
4
-alkyl or C
1
-C
4
-haloalkyl, it being possible for the radicals R to be different if n is 2, or a salt or adduct thereof, and
b) a N-acetonylbenzamide of the formula II
where:
R
1
and R
3
independently of one another are each halogen or C
1
-C
4
-alkyl;
R
2
is cyano, C
1
-C
4
-alkyl, C
2
-C
4
-alkenyl, C
2
-C
4
-alkynyl or C
1
-C
4
-alkoxy;
R
4
is hydrogen or C
1
-C
4
-alkyl;
R
5
is C
2
-C
4
-alkyl;
R
6
is thiocyano, isothiocyano or halogen, or a salt or adduct thereof,
in a synergistically effective amount.
The invention further relates to methods for controlling harmful fungi using mixtures of the compounds I (I.a, I.b and I.c) and II and to the use of the compound I and the compound II for preparing such mixtures.
The compounds of the formula Ia-c, their preparation and their activity against harmful fungi are known from the literature (EP-A 253 213; EP-A 254 426; EP-A 398 692).
The compounds of the formula Id, their preparation and their activity against harmful fungi are known from the literature (WO-A 93/15,046; WO-A 96/01,256 and WO-A 96/01,258).
Also known are synergistic mixtures of the compounds II with dithiocarbamates, their preparation and their activity against harmful fungi (EP-A 753 258; U.S. Pat. No. 5,304,572).
It is an object of the present invention to provide mixtures which have an improved activity against harmful fungi combined with a reduced total amount of active ingredients applied (synergistic mixtures), with a view to reducing the application rates and to improving the activity spectrum of the known compounds I and II.
We have found that this object is achieved by the mixture defined at the outset. In addition, we have found that better control of harmful fungi is possible by applying the compound I and the compound II simultaneously, separately as well as together, or by applying the compound I and the compounds II in succession, than when the individual compounds are used.
The formula Id in particular represents carbamates in which the combination of the substituents corresponds to a line of the Table below:
(Id)
No.
X
R
n
I.1
N
2-F
I.2
N
3-F
I.3
N
4-F
I.4
N
2-Cl
I.5
N
3-Cl
I.6
N
4-Cl
I.7
N
2-Br
I.8
N
3-Br
I.9
N
4-Br
I.10
N
2-CH
3
I.11
N
3-CH
3
I.12
N
4-CH
3
I.13
N
2-CH
2
CH
3
I.14
N
3-CH
2
CH
3
I.15
N
4-CH
2
CH
3
I.16
N
2-CH(CH
3
)
2
I.17
N
3-CH(CH
3
)
2
I.18
N
4-CH(CH
3
)
2
I.19
N
2-CF
3
I.20
N
3-CF
3
I.21
N
4-CF
3
I.22
N
2,4-F
2
I.23
N
2,4-Cl
2
I.24
N
3,4-Cl
2
I.25
N
2-Cl, 4-CH
3
I.26
N
3-Cl, 4-CH
3
I.27
CH
2-F
I.28
CH
3-F
I.29
CH
4-F
I.30
CH
2-Cl
I.31
CH
3-Cl
I.32
CH
4-Cl
I.33
CH
2-Br
I.34
CH
3-Br
I.35
CH
4-Br
I.36
CH
2-CH
3
I.37
CH
3-CH
3
I.38
CH
4-CH
3
I.39
CH
2-CH
2
CH
3
I.40
CH
3-CH
2
CH
3
I.41
CH
4-CH
2
CH
3
I.42
CH
2-CH(CH
3
)2
I.43
CH
3-CH(CH
3
)2
I.44
CH
4-CH(CH
3
)2
I.45
CH
2-CF
3
I.46
CH
3-CF
3
I.47
CH
4-CF
3
I.48
CH
2,4-F
2
I.49
CH
2,4-Cl
2
I.50
CH
3,4-Cl
2
I.51
CH
2-Cl, 4-CH
3
I.52
CH
3-Cl, 4-CH
3
Particular preference is given to the compounds I.12, I.23, I.32 and I.38.
The formula II in particular represents N-acetonylbenzamides in which the combination of the substituents corresponds to a line of the Table below:
(II)
No.
R
1
R
2
R
3
R
4
R
5
R
6
II.1
Cl
CH
3
Cl
CH
2
CH
3
CH
3
Cl
II.2
Cl
CH
2
CH
3
Cl
CH
2
CH
3
CH
3
Cl
II.3
Cl
OCH
3
Cl
CH
2
CH
3
CH
3
Cl
II.4
Cl
OCH
2
CH
3
Cl
CH
2
CH
3
CH
3
Cl
II.5
Cl
CN
Cl
CH
2
CH
3
CH
3
Cl
II.6
Br
CH
3
Br
CH
2
CH
3
CH
3
Cl
II.7
Br
CN
Br
CH
2
CH
3
CH
3
Cl
Particular preference is given to those N-acetonylbenzamides which are generally and particularly preferred in EP-A 753 258.
Owing to the basic character of their nitrogen atoms, the compounds Id and II are capable of forming adducts or salts with inorganic or organic acids or with metal ions.
Examples of inorganic acids are hydrohalic acids such as hydrofluoric acid, hydrochloric acid, hydrobromic acid and hydriodic acid, sulfuric acid, phosphoric acid and nitric acid.
Suitable organic acids are, for example, formic acid, carbonic acid and alkanoic acids, such as acetic acid, trifluoroacetic acid, trichloroacetic acid and propionic acid, and also glycolic acid, thiocyanic acid, lactic acid, succinic acid, citric acid, benzoic acid, cinnamic acid, oxalic acid, alkylsulfonic acids (sulfonic acids having straight-chain or branched alkyl radicals of 1 to 20 carbon atoms), arylsulfonic acids or aryldisulfonic acids (aromatic radicals, such as phenyl and naphthyl, which carry one or two sulfo groups), alkylphosphonic acids (phosphonic acids having straight-chain or branched alkyl radicals of 1 to 20 carbon atoms), arylphosphonic acids or aryldiphosphonic acids (aromatic radicals, such as phenyl and naphthyl, which carry one or two phosphoric acid radicals), it being possible for the alkyl or aryl radicals to carry further substituents, eg. p-toluenesulfonic acid, dodecylbenzenesulfonic acid, salicylic acid, p-aminosalicylic acid, 2-phenoxybenzoic acid and 2-acetoxybenzoic acid, etc.
Suitable metal ions are, in particular, the ions of the elements of the first to eighth sub-group, in particular chromium, manganese, iron, cobalt, nickel, copper, zinc and of the second main group, in particular calcium and magnesium, and of the third and fourth main group, in particular aluminum, tin and lead. The metals can exist in the various valencies which they can assume.
When preparing the mixtures, it is preferred to employ the pure active ingredients I and II, to which further active ingredients against harmful fungi or other pests, such as insects, arachnids or nematodes, or else herbicidal or glineth-regulating active ingredients or fertilizers can be admixed.
The mixtures of the compounds I and II, or the simultaneous joint or separate use of the compounds I and II, have outstanding action against a wide range of phytopathogenic fungi, in particular from the classes of the Ascomycetes, Basidiomycetes, Phycomycetes and Deuteromycetes. Some of them act systemically and can therefore also be employed as foliar and soil-acting fungicides.
They are specially important for controlling a large number of fungi in a variety of crop plants, such as cotton, vegetable species (eg. cucumbers, beans, tomatoes, potatoes and cucurbits), barley, grass, oats, bananas, coffee, maize, fruit species, rice, rye, soya, grapevine, wheat, ornamentals, sugar cane, and a variety of seeds.
They are particularly suitable for controlling the following phytopathogenic fungi:
Erysiphe graminis
(powdery mildew) in cereals,
Erysiphe cichoracearum
and
Sphaerotheca fuliginea
in cucurbits,
Podosphaera leucotricha
in apples,
Uncinula necator
in grapevines, Puccinia species in cereals, Rhizoctonia species in cotton, rice and lawns, Ustilago species in cereals and sugar cane,
Venturia inaequalis
(scab) in apples, Helminthosporium species in cereals,
Septoria nodorum
in wheat,
Botrytis cinerea
(gray mold) in strawberries, vegetables, ornamentals and grapevines,
Cercospora arachidicola
in groundnuts,
Pseudocercosporella herpotrichoides
in wheat and barley,
Pyricularia oryzae
in rice,
Phytophthora infestans
in potatoes and tomatoes,
Plasmopara viticola
in grapevines, Pseudoperonospora species in hops and cucumbers, Alternaria species in vegetables and fruit, Mycosphaerella species in bananas and Fusarium and Verticillium species.
Furthermore, they can be used in the protection of materials (eg. in the protection of wood), for example against
Paecilomyces variotii.
The compounds I and II can be applied simultaneously, that is either together or separately, or in succession, the sequence, in the case of separate application, generally not having any effect on the result of the control measures.
The compounds I and II are usually applied in a weight ratio of 10:1 to 0.01:1, preferably 5:1 to 0.05:1, in particular 1:1 to 0.05:1.
Depending on the nature of the desir
Ammermann Eberhard
Birner Erich
Leyendecker Joachim
Lorenz Gisela
Möller Bernd
BASF - Aktiengesellschaft
Keil & Weinkauf
Robinson Allen J.
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