Hoechst Schering Agrevo Gmbh

Hoechst Aktiengesellschaft

Herbert Stark

Werner Bonin

Ralf Braun

Oswald Ort

Wolfgang Schaper

Ulrich Sanft

Hermann Bieringer

Klaus Bauer

Manfred Kern

Harald Jakobi

Harald Knorr

Gunter Schlegel

Gerhard Krautstrunk

Lothar Willms

Werner Knauf

Hilmar Mildenberger

Stefan Schnatterer

Yoshio Katsuda

Gerhard Salbeck

Sergej Pasenok

Rainer Preuss

Ivan Cabrera

Rainer Schutze

Hans-Joachim Zeiss

Hans-Herbert Schubert

Martin Markl

Martin M&auml;rkl

Stephan Mller

The present invention relates to novel substituted pyridines/pyrimidines of the formula I

Substituted pyridines/pyrimidines, their preparation and their use as pesticides

Substituted cyclohexylaminopyrimidines

Compounds of the formula I ##STR1## in which A is CH and D is N.sup.+ R, A is nitrogen and D is N.sup.+ R or A is N.sup.+ R and D is nitrogen, R is --CR.sup.4 R.sup.5 --E--R.sup.6, Q.sup.n- is an inorganic or organic anion, n is 1, 2, 3 or 4 and R.sup.1 -R.sup.6, E, X, Y and Z are each as defined in the description, processes for their preparation and their use as pesticides.

Substituted nitrogen heterocycles, processes for their preparation and

The title compounds are obtained by racemate resolution of D,L-homoalanin-4-yl(methyl)phosphinic acid via precipitation of one of the diastereomeric salts using chiral bases such as quinine or cinchonine. It is possible to increase the yield of desired enantiomer by transformed racemate resolution when the precipitation of the diastereomeric salt takes place with the racemization of the undesired enantiomer in the presence of (hetero)--aromatic aldehydes. The racemization method is also suitable for structurally different optically active amino acids.

Processes for preparing �L!- or �D!-homoalanin-4-yl-(methyl) phosphinic

Use of benzoylureas for controlling house dust mites

Processes for preparing �L!- or �D!-homoalanin-4-yl-(methyl)phosphinic acid and salts thereof by racemate resolution The title compounds are obtained by racemate resolution of D,L-homoalanin-4-yl (methyl)phosphinic acid via precipitation of one of the diastereomeric salts using chiral bases such as quinine or cinchonine. It is possible to increase the yield of desired enantiomer by transformed racemate resolution when the precipitation of the diastereomeric salt takes place with the racemization of the undesired enantiomer in the presence of (hetero)aromatic aldehydes. The racemization method is also suitable for structurally different optically active amino acids.

Processes for preparing �L!- or �D!-homoalanin-4-yl-(methyl)phosphinic

Combinations of benzoyl cyclohexanedione herbicides and crop-protecting

Compounds of the formula I ##STR1## in which n is 0-6, R.sup.1 is alkyl, haloalkyl, cycloalkyl, halocycloalkyl, phenyl or halogenated phenyl,

Haloalkoxy-substituted benzoylcyclohexanediones as herbicides and plant

The present invention relates to agents for systemic combating of ectoperasites in host animals, containing a compound of the formul I ##STR1## in which R.sup.1 denotes hydrogen, (C.sub.1 -C.sub.5)-alkyl, (C.sub.1 -C.sub.3)-halogenoalkyl or halogen; R.sup.2 and R.sup.3 independently of one another denote (c.sub.1 -C.sub.5)-alkyl, (C.sub.2 -C.sub.5)-alkenyl, (C.sub.2 -C.sub.5)-alkynyl, (C.sub.3 -C.sub.7)-cycloalkyl, (C.sub.3 -C.sub.7)-cycloalkenyl, (C.sub.1 -C.sub.3)-halogenoalkyl, halogen, cyano, nitro, (C.sub.1 -C.sub.5)-alkoxy, (C.sub.1 -C.sub.3)-alkoxy-C.sub.1 -C.sub.3)-alkyl, (C.sub.1 -C.sub.3)-halogenoalkoxy or (C.sub.1 -C.sub.3)-alkylthio, or R.sup.2 and R.sup.3 together form a polymethylene chain having 2 to 5 carbon atoms:

Imidazoline derivatives for systemic combating of ectoparasites in host

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Kelkheim, Germany

Herbert Stark