Abstract: There are provided new 3-hydroxy-4-aryl-5-oxo-pyrazoline derivatives of the formula (I) in which A and B are identical or different and independently of one another in each case represent hydrogen, alkyl, alkenyl, alkynyl, alkoxyalkyl, alkylthioalkyl, cycloalkyl or optionally substituted aryl or A and B together represent the bivalent radical of a saturated or unsaturated, optionally substituted, mono-, bi-, tri- or polycyclic system, X represents alkyl, halogen or alkoxy, Y represents hydrogen, alkyl, halogen, alkoxy or halogenoalkyl, Z represents alkyl, halogen or alkoxy, n represents a number 0, 1, 2 or 3, G represents hydrogen (a) or the groups —CO—R1 (b ), —SO2—R3 (d), or E (g), in which E represents a metal ion equivalent or an ammonium ion, L and M represents oxygen and/or sulphur, and R1, R2, R3, R4, R5, R6 and R7 have the meaning given in the text of the application.

Abstract: The invention relates to new substituted benzimidazole of the general formula (I) ##STR1## in which R.sup.1 represents hydrogen, alkyl, alkoxy or optionally substituted aryl,R.sup.2 represents hydroxyl, cyano or in each case optionally substituted alkyl, alkenyl, alkinyl, alkoxy, alkenyloxy, alkinyloxy, alkylthio, amino, aminocarbonyl, alkylcarbonyl, alkoxycarbonyl, alkoxycarbonyloxy, dialkoxyphosphonyl, (hetero)aryl, (hetero)arylcarbonyl, (hetero)aryloxycarbonyl, (hetero)arylcarbonyloxy or (hetero)arylaminocarbonylaminocarbonyloxy, andR.sup.3 represents fluoroalkyl,X.sup.1, X.sup.2, X.sup.3 and X.sup.

Abstract: The invention relates to novel fluorothiadiazolyloxyacetamides of the formula (I) ##STR1## in which R.sup.1 represents hydrogen or respectively optionally substituted alkyl, alkenyl, alkynyl or arylalkyl,R.sup.2 represents respectively optionally substituted alkyl, alkoxy, alkenyl, alkenyloxy, alkynyl, cycloalkyl, cycloalkenyl, aryl, arylalkyl or arylalkyloxy, orR.sup.1 and R.sup.2 together with the nitrogen atom that they are attached to form an optionally substituted saturated or unsaturated nitrogen heterocycle which may contain further hetero atoms and to which a benzo grouping may be fused, andR.sup.3 represents fluorothiadiazolyl,to a process and to novel intermediates for their preparation and to their use as herbicides.

Abstract: There are provided new 3-hydroxy-4-aryl-5-oxo-pyrazoline derivatives of the formula (I) ##STR1## in which A and B are identical or different and independently of one another in each case represent hydrogen, alkyl, alkenyl, alkynyl, alkoxyalkyl, alkylthioalkyl, cycloalkyl or optionally substituted aryl orA and B together represent the bivalent radical of a saturated or unsaturated, optionally substituted, mono-, bi-, tri- or polycyclic system,X represents alkyl, halogen or alkoxy,Y represents hydrogen, alkyl, halogen, alkoxy or halogenoalkyl,Z represents alkyl, halogen or alkoxyn represents a number 0, 1, 2 or 3,G represents hydrogen (a) or the groups ##STR2## in which E represents a metal ion equivalent or an ammonium ion,L and M represents oxygen and/or sulphur,and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 have the meaning given in the text of the application.

Abstract: There are provided an aryl carboxylic acid derivatives of the formula (XVIa) ##STR1## Aryl carboxylic acid derivatives of the formula (XVIa) have a particularly pronounced activity against animal pests, in particular against insects and arachnids, and against weeds.

Abstract: There are provided new 3-hydroxy-4-aryl-5-oxo-pyrazoline derivatives of the formula (I) ##STR1## The new 3-hydroxy-4-aryl-5-oxo-pyrazoline derivatives of the formula (I) have a particularly pronounced activity against animal pests, in particular against insects and arachnids, and against weeds.

Abstract: The invention relates to new substituted benzimidazoles of the general formula (I) ##STR1## in which R.sup.1 represents hydrogen, alkyl, alkoxy or optionally substituted aryl,R.sup.2 represents hydroxyl, cyano or in each case optionally substituted alkyl, alkenyl, alkinyl, alkoxy, alkenyloxy, alkinyloxy, alkylthio, amino, aminocarbonyl, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy, dialkoxyphosphonyl, (hetero)aryl, (hetero)arylcarbonyl, (hetero)aryloxycarbonyl, (hetero)arylcarbonyloxy or (hetero)arylaminocarbonylaminocarbonyloxy, andR.sup.3 represents fluoroalkyl,X.sup.1, X.sup.2, X.sup.3 and X.sup.

Abstract: 2-fluoro-cyclopropylamine is prepared in an advantageous manner by reacting an N-vinyl compound with a carbene of type FXC: (where X=chlorine or bromine) to give the corresponding cyclopropylamine derivative, replacing the radical X in this derivative by hydrogen, by reduction, and finally eliminating the other substituents on the hydrogen atom.

Abstract: New azolylmethyl-fluorocyclopropyl derivatives of the formula ##STR1## in which R represents ##STR2## and addition products thereof which acids or metal salts are very effective for combating fungi.New oxiranes of the formula ##STR3## in which R has the abovementioned meaning, are valuable intermediates for the preparation of compounds of the formula (I).

Abstract: A new process for the preparation of 1-fluoro-cyclopropane-1-carboxylic acid of the formula ##STR1## which process comprises a) reacting in a first step, a 1-fluoro-cyclopropyl phenyl ketone of the formula ##STR2## in which R represents hydrogen, halogen, methyl, methoxy, phenyl or phenoxy, with an peroxy compound in the presence of a diluent, andb) reacting, in a second step, the resulting 1-fluoro-cyclopropane-1-carboxylate of the formula ##STR3## in which R has the abovementioned meaning, with a base in the presence of a diluent, and then acidifying the mixture. New 1-fluoro-cyclopropane-1-carboxylates of the above-mentioned formula.

Abstract: There are provided new 3-hydroxy-4-aryl-5-oxo-pyrazoline derivatives of the formula (I) ##STR1## The new 3-hydroxy-4-aryl-5-oxo-pyrazoline derivatives of the formula (I) have a particularly pronounced activity against animal pests, in particular against insects and arachnids, and against weeds.

Abstract: New azolylmethyl-fluorocyclopropyl derivatives of the formula ##STR1## in which R represents ##STR2## and addition products thereof which acids or metal salts are very effective for combating fungi.New oxiranes of the formula ##STR3## in which R has the abovementioned meaning, are valuable intermediates for the preparation of compounds of the formula (I).

Abstract: A new process for the preparation of 1-fluoro-cyclopropane-1-carboxylic acid of the formula ##STR1## which process comprises a) reacting in a first step, a 1-fluoro-cyclopropyl phenyl ketone of the formula ##STR2## in which R represents hydrogen, halogen, methyl, methoxy, phenyl or phenoxy,with an peroxy compound in the presence of a diluent, andb) reacting, in a second step, the resulting 1-fluoro-cyclopropane-1-carboxylate of the formula ##STR3## in which R has the abovementioned meaning,with a base in the presence of a diluent, and then acidifying the mixture.New 1-fluoro-cyclopropane-1-carboxylates of the above-mentioned formula.

Abstract: Novel fluorinated 1,3-benzo- and 1,3-pyrido-dioxoles of formula (I): ##STR1## in which A is C-R.sup.4 or N,X is hydrogen, fluorine, chlorine or bromine andR.sup.1 to R.sup.4 can be identical to or different from one another and are each hydrogen, halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, halogeno-C.sub.1 -C.sub.6 -alkyl, C.sub.6 -C.sub.10 -aryl, CHO, COOH, COCl, CN, OH, NCO, COO--C.sub.1 -C.sub.6 -alkyl, NO.sub.2, NH.sub.2, NH--C.sub.1 -C.sub.6 -alkyl, N(C.sub.1 -C.sub.6 -alkyl).sub.2, SO.sub.2 Cl, SO.sub.3 H, SO.sub.3 Na or SO.sub.3 K,it also being possible for two adjacent radicals from the series R.sup.1 to R.sup.4 together to be an optionally substituted --CH.dbd.CH--CH.dbd.CH-- bridge, processes for their preparation and their use for the preparation of plant protection agents.

Abstract: .alpha.-fluoro-.beta.-dicarbonyl compounds are prepared by reacting a halogenated dicarbonyl compound at temperatures of 20.degree. to 100.degree. C. with an addition product of hydrogen fluoride and a trialkylamine. This process is easy to carry out in technical terms and can also be carried out on a large scale.

Abstract: Pesticidal substituted 2-arylpyrroles of the formula ##STR1## in which n represents 0, 1 or 2,Ar represents optionally substituted aryl,R.sup.1 and R.sup.2 independently of one another represent hydrogen or halogen, but at least one of the two radicals R.sup.1 or R.sup.2 represents halogen,R.sup.3 represents hydrogen, halogen or optionally substituted alkyl,X.sup.1 and X.sup.2 independently represent hydrogen or halogen andR.sup.4 represents hydrogen or ##STR2## (R.sup.5 and R.sup.6 having various meanings). The compounds of the formulas ##STR3## are also new.

Abstract: A new process for the preparation of 1-fluorocyclopropyl methyl ketone of the formula ##STR1## which process comprises a) in a first step, reacting 2-acetyl-2-chloro-4-butanolide of the formula ##STR2## with an addition product of triethylamine and hydrogen fluoride of the formula(C.sub.2 H.sub.5).sub.3 N.n HFin whichn represents the numbers 1, 2 or 3, in the presence of a diluent at a temperature between 20.degree. C. and 120.degree. C. andb) in a second step, reacting the resulting 2-acetyl-2-fluoro-4-butanolide of the formula ##STR3## with a nucleophilic agent in the presence of a diluent at a temperature between 50.degree. C. and 200.degree. C.New halogenoketones of the formula ##STR4## in which Hal represents chlorine or bromine.

Abstract: The present invention relates to novel chloro-(2-halogeno-1-fluoromethyl-ethoxy)-methanes and to their preparation. The novel compounds can be used as intermediates for the preparation of biologically active substituted benzimidazoles.

Abstract: There are provided new 3-hydroxy-4-aryl-5-oxo-pyrazoline derivatives of the formula (I) ##STR1## in which A and B are identical or different and independently of one another in each case represent hydrogen, alkyl, alkenyl, alkynyl, alkoxyalkyl, alkythioalkyl, cycloalkyl or optionally substituted aryl orA and B together represent the bivalent radical of a saturated or unsaturated, optionally substituted, mono-, bi-, tri- or polycyclic system,X represents alkyl, halogen or alkoxy,Y represents hydrogen, alkyl, halogen, alkoxy or halogenoalkyl,Z represents alkyl, halogen or alkoxy,n represents a number 0, 1, 2 or 3,G represents hydrogen (a) or the groups ##STR2## in which E represents a metal ion equivalent or an ammonium ion,L and M represents oxygen and/or sulphur,and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 have the meaning given in the text of the application.

Abstract: The invention relates to new substituted 1-arylpyrazoles of the general formula (I) to a plurality of processes for their preparation, and to their use as pesticides.