Abstract: The present invention relates to novel substituted pyridines/pyrimidines of the formula I where A is CH or N; X is NH, O or S(O)q where q is 0, 1 or 2; Y1, Y2 and Y3 independently of one another are a group of the formula —O—, —CO—, —CNR6—, —S(O)r— or —N(O)lR6— where l is 0 or 1 and where r is 0, 1 or 2, or a group of the formula CR7R8, or Y1 or Y3 replace a direct bond; Z is a direct bond, NR9, O, S(O)s where s is 0, 1 or 2, OSO2, SO2O, NR10SO2, SO2NR11, SiR12R13 or  where U is a direct bond, NR14 or O; W is oxygen or sulfur; V is a direct bond, NR15 or oxygen; m and n and 0, 1, 2, 3 or 4; where the radicals R1 to R15 have the meaning given in the description, to processes for their preparation, to their use as pesticides, fungicides and ovicides and to their use as veterinary medicaments.

Abstract: Compounds of formula I where R1 is hydrogen, chlorine, fluorine or methyl, R2 and R3, which may be the same or different from each other, are hydrogen, halogen, cyano, (C1-C4)-alkyl, vinyl, ethynyl, (C1-C4)-alkoxy, (C1-C4)-alkoxy-(C1-C4)-alkyl, fluorovinyl or fluoroethyl, or R2 and R3 together with the linking carbon atoms form a benzo ring, and R4 is (C2-C4)-alkyl, (C2-C4)-alkenyl or (C3-C4)-alkinyl, each of which is substituted by at least two fluorine atoms and optionally substituted by C1-4-alkoxy, cyanomethoxy, (C3-C4)-alkenyloxy or (C3-C4)-alkinyloxy, are useful as pesticides, especially against insects, acarids and fungi. The invention includes a novel process for fluorinating certain pyrimidines.

Abstract: 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.

Abstract: 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.

Abstract: The use of compounds of the formula I ##STR1## in which R.sup.1 -R.sup.6, A, B und X have the meaning given in detail in the description, for controlling house dust mites.The miticide has a high miticidal effect against house dust mites of Tyrophagus, Dermatophagoides, Cheyletidae, etc. and is harmless to humans and beasts. It is effective not only in exterminating such house dust mites but also in preventing from them.

Abstract: Processes for preparing ?L!- or ?D!-homoalanin-4-yl-(methyl)phosphinic acid and salts thereof by racemate resolutionThe 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.

Abstract: Herbicide/safener combinations ofA) herbicides selected from the group of the 2-acylated 1,3-dicarbonyl compounds or salts thereof, andB) safeners B1 and/or B2 ##STR1## as they are defined in claim 1, are suitable for controlling harmful plants in crops such as cereals, maize and rice.

Abstract: Compounds of the formula I ##STR1## in which n is 0-6, R.sup.1 is alkyl, haloalkyl, cycloalkyl, halocycloalkyl, phenyl or halogenated phenyl,R.sup.2 is Hal, CN, alkyl, haloalkyl, alkoxy, haloalkoxy, thioalkyl, R.sup.a SO.sub.2 --, R.sup.a SO.sub.2 O--, R.sup.a SO.sub.2 NR.sup.6, R.sup.a and R.sup.b being alkyl or haloalkyl, and R.sup.3 is H, Hal, alkyl, haloalkyl, alkoxy, haloalkoxy or alkylthio, and R.sup.4 is haloalkyl, are suitable as selective herbicides and as growth regulators. To prepare them, a cyclohexanedione can be reacted a) with a 4-oxy-substituted benzoyl chloride and the resulting enol ether can be rearranged, or b) with a benzoyl cyanide. The benzoyl chloride or benzoyl cyanide required can be obtained from correspondingly substituted toluenes via the carboxylic acid.

Abstract: 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:R.sup.4 denotes hydrogen, (c.sub.1 -C.sub.10)-alkyl, (C.sub.2 -C.sub.5)-alkenyl or (C.sub.3 -C.sub.7)-cycloalkyl;R.sup.5 denotes hydrogen, (C.sub.1 -C.sub.10)-alkyl, (C.sub.3 -C.sub.5)-alkenyl, C.sub.3 -C.sub.5)-alkynyl, (C.sub.3 -C.sub.7)- cycloalkyl, (C.sub.3 -C.sub.

Abstract: Yellow couplers corresponding to the formula ##STR1## wherein Y represents an aromatic, aliphatic or cycloaliphatic group,X represents hydrogen or a releasable group,R.sup.1 represents halogen, andR.sup.2 and R.sup.3 each represent an alkyl group having 1 to 20 carbon atoms,are readily soluble in oil formers and undergo coupling with a high color yield. They are resistant to heat and moisture and undergo color development to yield stable yellow dyes with an absorption maximum below 450 nm. They have a high absorption capacity in the near UV region and are virtually unaffected by fluctuations in the pH during processing.

Abstract: White couplers which are capable of reacting with color developer oxidation products to form colorless end product with the consumption of four oxidation equivalents and which, therefore have increased absorption capacity for color developer oxidation products correspond to the formula ##STR1## or its tautomeric form, in which R.sup.1 is hydrocarbyl, heterocyclyl attached through a ring carbon, or --CO--R.sup.2R.sup.2 is alkyl, aryl, alkoxy, aminoX is --S-- or --NR.sup.3 --R.sup.3 is hydrogen, same as represented by R.sup.1 or an electron-attaching group.The four-equivalent white couplers may be contained in processing solutions or, in diffusion resistant form, in one or more layers of a colorphotographic material.