Basf Aktiengesellschaft

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Basfaktiengesellschaft

Thomas Kuekenhoehner

Eberhard Ammermann

Gisela Lorenz

Karl-Otto Westphalen

Norbert Goetz

Christoph Kuenast

Franz Schuetz

Uwe Kardorff

Hubert Sauter

Bruno Wuerzer

Helmut Walter

Gerhard Hamprecht

Matthias Gerber

Norbert Meyer

Peter Hofmeister

Volker Maywald

Rolf Hartmuth Fischer

Werner Schnurr

Albrecht Harreus

Hans Theobald

Hans-Juergen Neubauer

Jochen Wild

Franz Roehl

Siegbert Brand

Juergen Kast

Wolfgang Freund

Ulf Misslitz

Ulrich Schirmer

Joachim Leyendecker

Bernd Wenderoth

Peter Muenster

Wolfgang Rohr

Klaus Ditrich

Harald Rang

Karl Eicken

Joachim Rheinheimer

Rainer Becker

Reinhard Kirstgen

Thomas Zierke

Horst Wingert

Rainer Seele

Matthias Irgang

Hans-Juergen Teschendorf

Stefan Karbach

Dieter Kolassa

Wolfgang Krieg

Hartmann Koenig

Wolfgang Spiegler

Hans-Juergen Weyer

Juergen Frank

Beatrice Rendenbach-Mueller

Karl Siegfried Brenner

Michael Huellmann

Harald Weifenbach

Michael Hepp

Dirk Borchers

Charles Schommer

Fritz-Frieder Frickel

Wolfgang Von Deyn

Wassilios Grammenos

Jochem Henkelmann

Peter Plath

Bernd Wolf

Uwe Josef Vogelbacher

Costin Rentzea

Elisabeth Heistracher

Harald Rust

Horst Mayer

Matthias Zipplies

Heinz Isak

Lothar Janitschke

Thomas Saupe

Hermann Koehler

Klaus Fischer

Horst Zimmermann

Christoph Nuebling

Remy Benoit

Ulrich Wriede

Juergen Schubert

Thomas Ruehl

Stefan Stahl

Karl O Westphalen

Harald Bang

Juergen Kasi

Preparation of tetrahydropyran-4-carboxylic acid and its esters

Isoxazolecarboxamides, their preparation and their use

Oxime ether derivatives of the formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or alkyl, Het is pyridyl, quinolyl, pyrimidinyl, pyrazinyl, pyridazinyl, thienyl, quinoxalinyl, isoxazolyl, benzoxazolyl or benzothiazolyl bedeutet, the heterocyclic ring system being unsubstituted or substituted, and X is oxygen or sulfur, their plant-tolerated acid addition salts, metal complexes and N-oxides, and fungicides containing these compounds.

Oxime ether derivatives, their preparation and fungicides containing

3(2H)-Pyridazinone derivatives of the general formula I ##STR1## where R.sup.1 is alkyl, R.sup.2 is hydrogen or alkyl, X is halogen, W is oxygen or sulfur and Z is a hetaryl-substituted isoxazolyl radical or a substituted or unsubstituted cyclohexyl or cyclopentyl radical, plant-tolerated salts thereof, processes for their manufacture, and their use as pesticides.

3(2H)-Pyridazinone derivatives and their use for controlling pests

The preparation of isoxazole-4,5-dicarboxylic diester of the formula I ##STR1## where R.sup.1 is any organic radical which is inert under the reaction conditions, and R.sup.2 and R.sup.3 are each alkyl, cycloalkyl or benzyl, entails reacting an aldoxime of the formula II ##STR2## with a diester of maleic or fumaric acid, of the formula III

Preparation of isoxazole-4,5-dicarboxylic diesters

Oxime ether derivatives of the formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or alkyl, Het is quinolyl, unsubstituted or substituted, and X is oxygen or sulfur, their plant-tolerated acid addition salts, metal complexes and N-oxides, and fungicides containing these compounds.

A process for the preparation of 3-(2'-acyloxyethyl)-dihydro-2(3H)furanones of the general formula I ##STR1## in which R.sup.1 denotes C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.8 cycloalkyl, aryl, C.sub.7 -C.sub.12 aralkyl, or C.sub.7 -C.sub.12 alkylaryl, in which a 3-(2'-oxyethyl)-dihydro-2(3H)furanone of the general formula II ##STR2## in which R.sup.2 denotes C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.8 cycloalkyl, aryl, C.sub.7 -C.sub.12 aralkyl, or C.sub.7 -C.sub.12 alkylaryl is caused to react with a carboxylic acid, a carboxylic anhydride, and/or an acyl halide in the presence of an acid catalyst at temperatures of from 50.degree. to 250.degree. C. and pressures of from 0.1 to 100 bar.

Preparation of 3-(2-acyloxyethyl)-dihydro-2(3H)furanones

A process for purifying esters of tetrahydropyran-4-carboxylic acid of the formula I ##STR1## where R.sup.1 to R.sup.3 are each C.sub.1 -C.sub.4 -alkyl, and R.sup.2 and R.sup.3 are each additionally hydrogen, from mixtures produced in the reaction of butyrolactones of the formula II ##STR2## where R.sup.2 and R.sup.3 have the abovementioned meanings, and R.sup.4 is hydrogen, alkyl of 1-6 carbons or acyl of the formula --CO--R.sup.2, with alcohols of the formula R.sup.1 OH in the presence of oxide catalysts, by distillation, which entails

Purification of esters of tetrahydro-pyran-4-carboxylic acid

A process for preparing monocarboxylic esters of the general formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.3 -C.sub.8 -cyclo-alkyl acyl, aryl or C.sub.7 -C.sub.20 -aralkyl or together --(CH.sub.2).sub.n --X--(CH.sub.2).sub.m --,

Preparation of carboxylic esters

.alpha.-arylacrylic acid derivatives of the general formula I ##STR1## where X is ethylene or ethenylene; Y is a direct bond or oxygen; R.sup.1 is a mononuclear or dinuclear aromatic system substituted by C.sub.1 -C.sub.4 -alkyl, their preparation, insecticides and fungicides containing them and methods for their use.

.alpha.-arylacrylic acid derivatives, their preparation and their use

Isoxazole- and isothiazole-5-carboxamides

Acetylene derivatives, their preparation and their use for controlling

A process for preparing 4-hydroxymethyltetrahydropyran comprises reacting tetrahydrofurans of the general formula I ##STR1## where R.sup.1 is hydrogen, C.sub.1 - to C.sub.6 -alkyl or --CO--R.sup.2, and

Preparation of 4-hydroxymethyltetrahydropyran

.alpha.-Arylacrylates substituted by a heterocyclic radical and of the general formula I ##STR1## where R.sup.1 is alkoxy or alkylthio, R.sup.2 is alkyl, Het is quinolyl, which is unsubstituted or substituted, A is oxygen and n is 1, and their plant-tolerated acid addition salts and metal complexes, and the N-oxides of the heterocyclic compounds, and fungicides containing these compounds.

.alpha.-arylacrylates substituted by a heterocyclic radical, and

Dicarboximides of the formulae Ia, Ib and Ic ##STR1## where X is oxygen or sulfur,

Dicarboximides and their use as herbicides

Growing community of inventors

Frankenthal, Germany

Thomas Kuekenhoehner