Hoechst Aktiengesellschaft

Rainer Liebl

Hermann Bieringer

Klaus Bauer

Hilmar Mildenberger

Reinhard Handte

Helmut Burstell

Roland Schmierer

Michael Frey

1,2-Disubstituted piperidines of the general formula I ##STR1## in which X denotes oxygen or sulfur; R denotes alkyl, R.sup.1 and R.sup.2 denote hydrogen, alkyl or benzyl, R.sup.3 denotes hydrogen, (substituted) alkyl, (substituted) benzyl or a radical of the formulae ##STR2## Y and X denote S or O; Z denotes S, O or NR.sup.1 ; R.sup.4 denotes hydrogen, (substituted) alkyl, (substituted) phenyl, (substituted) naphthyl or (substituted) pyridyl, A denotes (substituted) phenyl or (substituted) naphthyl and m denotes 0, 1 or 2, possess advantageous herbicidal properties.

1,2-disubstituted piperidines, processes for their preparation and their

The compounds of formula I ##STR1## in which the substituents X, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6, are defined hereinbelow. The compounds have advantageous herbicidal properties and are useful, for example, for combating undesired plants.

Herbicidal derivatives of imidazolidinone and imidazolidine thione

Imidazolinones of the formula ##STR1## in which A denotes N or C--R.sup.4 ; B denotes halogenoalkyl, alkoxymethyl, cyanomethyl or thiocyanatomethyl; X denotes alkyl; and Y denotes alkyl, cycloalkyl, alkenyl, phenyl or benzyl; or X and Y, together with C, denote a spiro-cycloalkyl group; Z denotes H, (substituted) alkyl, alkenyl, propargyl or an alkyl, carboxylic acid ester or sulfonic acid ester group; and R.sup.1 -R.sup.4 denote H, halogen, alkyl, alkoxy, alkoxycarbonyl, halogenoalkyl, NO.sub.2, CN, (substituted) phenoxy or (substituted) phenyl, or in each case two adjacent radicals together denote the radical --CH.dbd.CH--CH--CH--, are active herbicides and growth regulators.

Herbicidal imidazolinones

Compounds of the formula I ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 independently of one another denote hydrogen, F, Cl, Br or (C.sub.1 -C.sub.4)-alkyl, and R.sup.1 also denotes CF.sub.3, CN, NO.sub.2 or alkoxycarbonyl, A denotes a direct bond, --CH.sub.2 --CH.sub.2 -- or --CH.dbd.CH--, X denotes O, S or N--R.sup.8, R.sup.4 denotes H or alkyl, R.sup.5 and R.sup.6 denote alkyl, R.sup.7 denotes alkyl, (substituted) benzyl and/or (substituted) phenethyl and R.sup.8 denotes H or alkyl or, together with NR.sup.7, denotes a heterocyclic ring, are active herbicides and antidotes.

Growing community of inventors

Gersthofen, Germany

Rainer Liebl