Chinoin Gyogyszer Es Vegyeszeti Termekek Gyara Rt.

Egis Gyoryszergyar

Tibor Zsolnai

Gyorgy Lugosi

Maria Bakonyi

Pal Benko

Istvan Racz

Laszlo Pallos

Peter Tetenyi

Sandor Szoke

Gyorgy Csermely

Jeno Bernath

Erzsebet Radvany Nee Hegedus

Istvan Szepessy

Istvan Szepesi

Iren Zsolnai Nee Csillag

Marta Kininczky

The invention relates to new phenanthrene derivatives wherein R stand for C.sub.1-10 alkylamino; C.sub.1-10 alkylthio; C.sub.1-5 alkoxy; or phenyl or phenylamino, the two latter groups being optionally substituted on the phenyl ring by one or more identical or different C.sub.1-4 alkyl, C.sub.1-4 alkoxy, nitro, amino, cyano and/or halogen substituent(s) . The compounds of the present invention possess valuable fungicidal properties and may be used in agriculture, horticulture and therapy as active ingredient of fungicidal or antifungal compositions. The compounds of the general Formula I ##STR1## may be prepared by acylating 9,10-phenanthrene-dione-9-oxime or an alkali or alkali earth metal salt thereof.

Phenanthrene derivatives

The invention relates to a method of combatting phytopathogenic fungi, primarily powdery mildew. The method involves administering compositions according to the invention which contain as active principle at least one compound of the formula (I), ##STR1## wherein R.sup.1 is a C.sub.1-12 alkyl or a chloroethyl group,

Method of treating fungus-infected plants with phenylazocyanoacetic

Compounds of the formula, ##SPC1## Wherein R.sup.1 and R.sup.2 each stand for hydrogen or a group of the general

Water-soluble 1 and/or 2 acid alkylene imidazoles

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Debrecen, Hungary

Tibor Zsolnai