Fungicidal mixtures

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

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Details

514539, A01N 3712, A01N 3744, A01N 4364

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active

058278613

DESCRIPTION:

BRIEF SUMMARY
This application is a 371 of PCT/EP95/02025 filed May 27, 1995.
The present invention relates to a fungicidal mixture which contains ##STR3## and b) 1-(1,2,4-triazol-1-yl)-2-cyano-2-(4-chlorophenyl)hexane II ##STR4## in a synergistically active amount.
The invention additionally relates to methods of controlling harmful fungi using mixtures of the compounds I and II and the use of the compound I and the compound II for the production of mixtures of this type.
The compound of the formula I (or Ia or Ib), its preparation and its action against harmful fungi are disclosed in the literature (EP-A 253 213). The compound II (common name: myclobutanil), its preparation and its action against harmful fungi are likewise known.
With respect to a decrease in the application rates and an improvement of the spectrum of action of known compounds, the present invention is based on mixtures which, with a reduced total amount of applied active compounds, have an improved action against harmful fungi (synergistic mixtures).
Accordingly, the mixtures defined at the beginning have been found. It has additionally been found that on simultaneous joint or separate application of the compound I and the compound II or on application of the compound I and the compound II in succession harmful fungi can be controlled better than with the individual compounds.
The compounds of the formulae I and II can be present in the E or the Z configuration with respect to the C.dbd.N double bond (with respect to the carboxylic acid function group). Accordingly, it can be used in the mixture according to the invention in each case either as the pure E or Z isomer or as an E/Z isomer mixture. The E/Z isomer mixture or the E isomer is preferably used, the E isomer being particularly preferred in the case of the compound I.
Because of the basic character of the N group, the compound II is able to form salts or adducts 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 having 1 to 20 carbon atoms), arylsulfonic acids or--disulfonic acids (aromatic radicals such as phenyl and naphthyl which carry one or two sulfonic acid groups), alkylphosphonic acids (phosphonic acids having straight-chain or branched alkyl radicals having 1 to 20 carbon atoms), arylphosphonic acids or--diphosphonic acids (aromatic radicals such as phenyl and naphthyl which carry one or two phosphonic acid radicals), the alkyl and aryl radicals being able to carry further substituents, eg. p-toluene-sulfonic acid, salicylic acid, p-aminosalicylic acid, 2-phenoxy-benzoic acid, 2-acetoxybenzoic acid, etc.
Suitable metal ions are in particular the ions of the elements of the second main group, in particular calcium and magnesium, of the third and fourth main group, in particular aluminum, tin and lead, as well as of the first to eighth subgroup, in particular chromium, manganese, iron, cobalt, nickel, copper, zinc and others. The metal ions of the elements of the subgroups of the fourth period are particularly preferred. The metals can in this case be present in the different valencies applicable to them.
Preferably, the pure active compounds I and II are employed in the preparation of the mixtures, to which, if required, further active compounds against harmful fungi or other pests such as insects, arachnids or nematodes, or alternatively herbicidal or growth-regulating active compounds or fertilizers, can be admixed.
The mixtures of the compounds I and II and the simultaneous joint or separate use of the compounds I and II are distingu

REFERENCES:
patent: 4829085 (1989-05-01), Wenderoth et al.
patent: 5317027 (1994-05-01), Sauter et al.
Chem. Abstr. vol. 118, No. 23, Jun. 7, 1993, 118:228112.
Resesarch Disclosure Nr. 338, 1992 Havant GB, Disclosure 33893.

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