Bayer Aktiengesellschaft

Afga-gevaert Aktiengesellschaft

Peter Feyen

Karl G Metzger

Michael Preiss

Hans-Bodo Konig

Wolf Reiser

Ulrike Wachendorff-Neumann

Stefan Dutzmann

Dieter Feucht

Wolfgang Thielert

Uwe Priesnitz

Udo Kraatz

Hans-Ludwig Elbe

Hermann Seifert

Gunter Arend

Gebhard Rauleder

Friedrich Schmidt

Peter Kuhnert

Egon Kohler

Raphael Wieschollek

Raphael Weischollek

Solid formulations of agrochemicals

Solid formulations

A process for the preparation of an oxirane of the formula ##STR1## in which X is 4-chlorobenzyl, 4-phenylphenoxy or 1H-(1,2,4)-triazolyl, comprising reacting dimethyl sulphate with an excess of dimethyl sulphide thereby to form trimethylsulphonium methyl-sulphate of the formula

Process for the preparation of oxiranes

A granulate mixture containing at least three different granulates of solid constituents of a color photographic developer, one granulate containing the protective agent against oxidation, another granulate containing the developer substance and the third granulate containing the alkali donor, is pourable, produces no dust, rapidly dissolves in water, has unlimited durability and gives reliable, reproducible results on development.

Granulated color photographic developer and its preparation

A process for the preparation of the (-)-antipode of (E)-1-cyclohexyl-4,4-dimethyl-3-hydroxy-2-(1,2,4-triazol-1-yl)-pent-1-ene of the formula ##STR1## which comprises reacting the (E)-isomer of 1-cyclohexyl-4,4-dimethyl-2-(1,2,4-triazol-1-yl)-pent-1-en-3-one of the formula ##STR2## with lithium aluminum hydride in the presence of an inert organic diluent and in the presence of a chiral aminoalcohol at a temperature between -70.degree. C. and +50.degree. C. The (-)-antipode is produced in high selectivity, using (-)-N-methyl-ephedrine.

Process for the preparation of the (-)-antipode of

A process for the preparation of the (+)-antipode of (E)-1-cyclohexyl-4,4-dimethyl-3-hydroxy-2-(1,2,4-tri-azol-1-yl)-pent -1-ene of the formula ##STR1## which comprises reacting the (E)-isomer of 1-cyclohexyl-4,4-dimethyl-2-(1,2,4-triazol-1-yl)-pent-1-en-3-one of the formula ##STR2## with lithium aluminum hydride in the presence of an inert organic diluent and in the presence of a chiral amino alcohol at a temperature between -80.degree. C. and +50.degree. C. The (+)-antipode is produced in high selectivity, using (+)-N-methyl-ephedrine.

Process for the preparation of the (+)-antipode of

The known E-isomers of compounds of the formula ##STR1## in which X and Y independently of each other represent hydrogen or halogen, are obtained according to a new process, in which triazolylketones of the formula ##STR2## in which X and Y have the above mentioned meaning, are reacted with an excess of cyclohexanecarbaldehyde in the presence of a non-polar organic diluent and in the presence of a catalyst mixture of organic acids and secondary amines in a molar ratio of 1:0.5 to 1:1 at temperatures between 40.degree. and 100.degree. C. by continuously removing the water formed and subsequently working up in the manner that is described in the specification.

Process for the preparation of 3-isomers of

A simplified process for preparing the known insecticide 0,S-dimethylthiolphosphoric acid amide of the formula ##STR1## inexpensively, in high purity and with minimum waste water and gas which would have to be specially treated to avoid environmental pollution, comprises

Preparation of O,S-dimethyl-thiolophosphoric acid amide

A process for the preparation of E-isomers of 1-cyclohexyl-2-(1,2,4-triazol-1-yl)-1-penten-3-one derivatives of the formula ##STR1## in which X and Y independently of one another represent hydrogen or halogen by contacting isomers of 1-cyclohexyl-2-(1,2,4-triazol-1-yl)-1-penten-3-one derivatives of the formula ##STR2## in which X and Y have the previously indicated meaning with at least one secondary amine, if desired in the presence of water and/or in the presence of a water immiscible solvent.

Process for the preparation of E-isomers of

A process for the preparation of a compound of the formula ##STR1## in which R is alkyl,

Process for the preparation of thiophosphoric acid esters

2-Hetero-acetamido-penicillanates and cephalosporinates of the formula ##STR1## in which R is hydrogen or lower alkoxy,

2-Hetero-acetamido-cephalosporinates

A process for the preparation of a phosphoric acid propargyl ester of the formula ##STR1## wherein R.sup.1 and R.sup.2 each independently is an aryl radical or a C.sub.1-4 -alkyl, C.sub.1-4 -alkenyl or C.sub.1-4 -alkynyl radical, and

Preparation of phosphoric acid propargyl esters

Antibacterially active and animal feedstuff supplement .beta.-lactam antibiotics of the formula ##STR1## in which R is H or --UR',

.beta.-Lactam antibiotics

New penicillins of the formula ##STR1## in which ##STR2## E is oxygen or sulphur, and R.sub.1 and R.sub.2 are hydrogen or various organic radicals with certain provisos, or salts thereof, are antibacterially ative and useful as antibiotics in pharmacy, as animal feed supplements for promoting growth, and as preservatives.

Growing community of inventors

Mettmann, Germany

Peter Feyen