Hoechst Aktiengesellschaft

Peter Hartz

Hilmar Mildenberger

Burkhard Sachse

Gerhard Horlein

Hans Rochling

Heinz Ehrhardt

Karl Matterstock

Ulrich Hertenstein

Hans-Gerd Gerber

Substituted ethanols of the general formula ##STR1## in which Ar.sub.1 is a carbocyclic or heterocyclic ring and Az is a triazolyl, benzimidazolyl, pyrazolyl or imidazolyl radical, are reacted with aryl hydrocarbons Ar.sub.2 --H, in which Ar.sub.2 has the same meaning as Ar.sub.1, in the presence of an acidic catalyst, to give 1,1-diaryl-2-azolylethanes. The substances, which, apart from the imidazolyl derivatives, are new, can be used as biocides, in particular fungicides.

1,1-Diaryl-2-azolylethanes and preparations containing these compounds

Fungicidal 3-azolyl-1,2-diaryl-1-haloprop-1-enes of the formula ##STR1## in which R.sub.4 is chlorine or bromine, and Az is a 1,2,4-triazol-1-yl radical, and their preparation.

Fungicidal 3-1,2,4-triazol-1-yl-1,2-diaryl-1-halogeno-prop-1-ene

2-Dihalogenomethylene-3-halogeno-3-carboalkoxy-5-oxopyrrolidines of the formula I ##STR1## wherein R.sup.1 is hydrogen or C.sub.1-4 alkyl,

2-Dihalogenomethylene-3-halogeno-3-carbalkoxy-5-oxopyrroli-dines,

Compounds of the formula ##SPC1## Where X is oxygen or sulfur and R hydrogen, (C.sub.1 -C.sub.4)-alkyl, (C.sub.1 -C.sub.3)-acyl, (C.sub.1 -C.sub.2)-halo -alkyl-carbonyl, (C.sub.2 -C.sub.6)-alkoxy-alkyl-carbonyl, (C.sub.1 -C.sub.4)-alkoxycarbonyl, phenyloxy-carbonyl, N-mono- or Di-(C.sub.1 -C.sub.4)-alkyl-carbamoyl, N-(C.sub.1 -C.sub.4)-alkyl-N-(C.sub.1 -C.sub.4)-alkoxy-carbamoyl, N-phenyl-carbamoyl, the phenyl nucleus of which optionally being substituted by one or two halogen atoms and/or trifluormethyl groups; morpholino-carbonyl, N'-methylpiperazino-carbonyl, piperidino-carbonyl, pyrrolidino-carbonyl, N-(trihalogeno-phenoxy-sulfonyl)-carbamoyl or N-(1,1,3,3-tetrachloro-2-propoxy-sulfonyl)-carbamoyl, or, in the case of R being H or alkyl, also the physiologically tolerable salts thereof with inorganic or organic bases or acids.

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Kelkheim, Germany

Peter Hartz