Abstract: Herbicidal novel tetrazolinone derivatives of the formula: ##STR1## wherein R.sup.1 is alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl, alkynyl, alkoxy or phenyl which is optionally substituted, andR.sup.2 is alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl, alkynyl, alkoxy or phenyl which is optionally substituted, orR.sup.1 and R.sup.2 form, together with the nitrogen atom to which R.sup.1 and R.sup.2 are bonded, a 5- or 6-membered heterocyclic ring, optionally fused to a carbocyclic ring optionally and independently substituted by C.sub.1-4 alkyl, andR.sup.3 is a 5-membered heterocyclic radical containing at least one hereto atom selected from the group consisting of nitrogen, oxygen, and sulfur, optionally substituted by at least one substitutent selected from the group consisting of halogen, benzyl, phenyl, halogen-substituted phenyl, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, C.sub.1-4 haloalkyl, C.sub.1-4 haloalkoxy, C.sub.1-4 alkylthio, C.sub.1-4 alkyl-sulfonyl and C.sub.

Abstract: The invention relates to the use of substituted amines for the treatment and prevention of brain function disorders. The substituted amines are suitable on the basis of their properties as agonistic or antagonistic ligands for nicotinergic receptors, in particular for the treatment and prevention of senile and presenile dementia and dementia of the Alzheimer type, and of depressions.

Abstract: The invention relates to new phosphorylated aza compounds, to processes for their preparation and to their use as pesticides, in particular as soil-acting insecticides and nematicide.The new compounds have the general formula (I) ##STR1## in which R.sup.1 -R.sup.5, X and Y are defined as in the specification, with the exception of compound O-ethyl S-propyl 3-(6-chloro-3-pyridinylmethyl)-2-nitroimino-imidazolidine-1-thiophosphate.

Abstract: Novel insecticidal pyrazolines of the formula ##STR1## wherein R.sup.1 and R.sup.2 represent hydrogen, C.sub.1-4 alkyl, or unsubstituted or halogen substituted phenyl,A represents optionally substituted phenyl or halogen-substituted 3-pyridyl, andX and Y individually represent hydrogen, halogen, C.sub.1-4 alkyl, halogeno-C.sub.1-4 alkyl, halogeno-C.sub.1-4 alkoxy or halogeno-C.sub.1-4 alkylthio, or X and Y together form haloalkylenedioxy, with the proviso that X and Y do not simultaneously represent hydrogen, and other provisos as well.

Abstract: There is described a new process for the preparation of substituted 3-aminoacrylic esters of the general formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, X and n have the meaning given in the description.The 3-aminoacrylic esters of the formula (I) are obtained by reacting acetic esters of the formula (II)R.sup.1 --(X).sub.n --CH.sub.2 --COOR.sup.

Abstract: Synergistic insecticidal compositions comprising (I) O-methyl thionoethanephosphonate of the formula ##STR1## and (II) at least one member selected from the group consisting of (4-fluoro-3-phenoxy)-2-cyanobenzyl 2,2-dimethyl-3-(2', 2'-dichlorovinyl)-cyclopropanecarboxylate (cyfluthrin) and 2,3,5,6-tetrafluorobenzyl 2,2-dimethyl-3-(2', 2'-dichlorovinyl)-cyclopropanecarboxylate.

Abstract: Insecticidal, acaricidal and nematocidal pyrimidinyl(thiono)(thio)-phosphoric(phosphonic) acid (amide) esters of the formula ##STR1## in which R represents hydrogen, or represents an optionally substituted radical selected from the group consisting of alkyl, alkoxy, alkylthio, dialkylamino, cycloalkyl and aryl,R.sup.1 represents hydrogen, aklyl or halogen,R.sup.2 represents alkyl,R.sup.3 represents alkyl, alkoxy, alkylthio, amino, alkylamino, dialkylamino or aryl andX represents oxygen or sulphur.

Abstract: Insecticidal pyrimidin-4-yl carbamates of the formula ##STR1## in which R.sup.1 represents alkoxy, alkylthio, alkylthioalkyl, alkylsulphinylalkyl, alkylsulphonylalkyl or dialkylamino,R.sup.2 represents hydrogen or alkyl,R.sup.3 represents hydrogen, alkyl or alkoxy orR.sup.2 and R.sup.3 together represent a double-linked alkanediyl radical,R.sup.4 represents hydrogen or alkyl,R.sup.5 represents hydrogen or alkyl andA represents oxygen, sulphur or a radical ##STR2## where R.sup.6 represents alkyl.

Abstract: A process for the preparation of a compound of the formula ##STR1## in which R is hydrogen, alkoxy, alkylamino, dialkylamino or an optionally substituted radical from the group consisting of alkyl, cycloalkyl, aralkyl and aryl,R.sup.1 is an optionally substituted radical from the group consisting of alkyl, alkoxy, alkylthio, mono- or dialkylamino and phenyl,R.sup.2 is optionally substituted alkyl, andY is oxygen or sulphur,comprising(a1) reacting a compound of the formula ##STR2## with ##STR3## or withR.sup.5 COOHin whichR.sup.5 is R except for hydrogen, or equivalent, to produce ##STR4## oxidizing that compound or its salt to ##STR5## and phosphorylating. Several of the intermediates are new.

Abstract: Insecticidal O-(6-methyl-2-alkyl-pyrimidin-4-yl) O-alkyl thionoalkanephosphonates of the formula ##STR1## in which R stands for methyl or ethyl,R.sup.1 stands for methyl or ethyl andR.sup.2 stands for isopropyl or tert-butyl.

Abstract: Pesticidally active pyrimidinyl (thiono)(thio)-phosphates of the formula ##STR1## in which R.sup.1 stands for alkoxy,R.sup.2 stands for alkoxy or alkylthio andX stands for oxygen or sulphur,with the proviso that the two radicals R.sup.1 and R.sup.2 are identical when they stand for alkoxy.

Abstract: Arthropodicidally active O-(6-alkoxy-2-tert-butylpyrimidin-4-yl)-O-methyl-thionoethanephosphonic acid diesters of the formula ##STR1## in which R represents alkyl with 1 to 4 carbon atoms or cycloalkyl with 3 or 4 carbon atoms. The intermediate where R is replaced by H is also new.

Abstract: The new compound ##STR1## is prepared and converted to the new acetal ##STR2## which is reacted with an alkali phenolate or alkaline earth metal phenolate in the presence of copper or a copper compound as a catalyst and in the presence of a diluent at a temperature between about 100.degree. and 200.degree. C. to produce the new acetal ##STR3## which can be hydrolyzed to the corresponding aldehyde which is a known intermediate for pyrethroid-like insecticides.

Abstract: 5-Halogenoalkyl-1,3,4-thiadiazol-2-yloxyacetamides of the formula ##STR1## in which R.sup.1 is halogenoalkyl, with the exception of trifluoromethyl, andR.sup.2 and R.sup.3 each independently is hydrogen, alkyl, alkenyl, alkinyl, in each case optionally substituted cycloalkyl or cycloalkenyl, halogenoalkyl, alkoxyalkyl, alkoxyalkylenoxy, alkoxy, aralkyl or optionally substituted aryl, orR.sup.2 and R.sup.3, together with the nitrogen atom to which they are bonded, form an optionally substituted heterocyclic radical which can contain further hetero-atoms,which possess herbicidal and fungicidal activity. The intermediates 5-chlorodifluoromethyl- and 5-dichlorofluoromethyl-2-chloro-1,3,4- thiadiazole are also new.

Abstract: O-Ethyl O-isopropyl O-(2-trifluoromethyl-pyrimidin-5-yl)-phosphoric acid ester of the formula ##STR1## is insecticidally and nematocidally active.

Abstract: In the preparation of a (thiono)phosphoric ester of the formula ##STR1## in which X represents oxygen or sulphur,R and R.sup.1 are identical or different and represent alkyl, andR.sup.2 represents optionally substituted aryl or represents optionally substituted hetaryl having at least one nitrogen atom,wherein a hydroxyl derivative of the formulaR.sup.2 --OHor an ammonium, alkali metal or alkaline earth metal salt thereof is reacted with a (thiono)phosphoric halide of the formula ##STR2## in which Hal represents halogen,the improvement which comprises effecting the reaction in the presence of a bicyclic organic amine as catalyst. Advantageously the reaction is effected in a diluent in the presence of potassium carbonate as an acid acceptor at 20.degree. to 100.degree. C., and 0.8 to 1.5 mols of the halide and 0.005 to 0.5 mol of 1,4-diazabicayclo-(2,2,2)-octane are used as bicyclic organic amine per mol of the hydroxyl compound.

Abstract: Insecticidally and fungicidally active novel 6-oxo-pyrimidinyl (thiono)-phosphate of the formula ##STR1## in which X represents oxygen or sulphur,R represents alkyl,R.sup.1 represents fluoroalkyl,R.sup.2 represents hydrogen, optionally substitutedalkyl, or alkoxy, alkylthio, dialkylamino or aryl,R.sup.3 represents alky or aryl andR.sup.4 represents hydrogen, halogen or alkyl.

Abstract: The process which comprises ##STR1## in which R represents hydrogen, alkoxy, alkylamino or dialkylamino or represents optionally substituted radicals from the series comprising alkyl, cycloalkyl and aryl,R.sup.1 represents optionally substituted radicals from the series comprising alkyl, alkoxy, alkylthio, mono- or dialkylamino and phenyl,R.sup.2 represents optionally substituted alkyl,R.sup.3 represents alkyl, alkoxy or aryl,X represents oxygen or sulphur, andY represents halogen or a grouping --OCOR.sup.3.The intermediates do not have to be isolated. Some are new compounds.

Abstract: Pesticidally active novel phosphates of the formula ##STR1## in which R represents hydrogen, alkyl, cycloalkyl, alkoxy, alkylthio, alkylamino, dialkylamino or aryl,R.sup.1 represents alkyl,R.sup.2 represents fluoroalkyl andX represents oxygen or sulphur.The acid halides of the formula ##STR2## are also new.