Bayer Aktiengesellschaft

Bayer Cropscience Ag

Ernst Kysela

Albrecht Marhold

Hans-Joachim Santel

Robert R Schmidt

Erich Klauke

Reinhard Lantzsch

Hans-Jochem Riebel

Klaus-Helmut Muller

Bernd Baasner

Christa Fest

Theodor Pfister

Hans-Joachim Diehr

Gerd Hanssler

Rudolf Braden

Robert H Strang

Stefan Dutzmann

Karl H Buchel

Ludwig Eue

Joachim Kluth

Klaus Grohe

Uwe Petersen

Rolf Kirsten

Uwe Priesnitz

Gunther Beck

Udo Kraatz

Heinz Forster

Klaus Schaller

Michael Schriewer

Wolfgang Roy

Alfons Dorlars

Wilhelm Brandes

Markus Dollinger

Dieter Arlt

Hermann Hagemann

Benedikt Becker

Wilfried Paulus

Karl-Josef Herd

Klaus Nachtkamp

Guido Steffan

Andrew Plant

Hans-Georg Schmitt

Eberhard Konig

Stefan Bohm

Michael Schwamborn

Walter Lange

Jurgen Hartwig

Wolfram Reddig

Oswald Wilmes

Karl-Rudolf Gassen

Gerhard Heywang

Helmut Heitzer

Friedrich W Krock

Miklos Von Bittera

Joachim Komoschinski

Arnd Stuwe

Joachim Ippen

Achim Bertsch

Wilheim Brandes

Gunter Beck

Wolfgang Von Der Emden

Reinhard Lantzcsh

2,5-Bisaryl-&#x394;-pyrrolines of the formula (I) in whichArand Arare as defined in the descriptioncan be prepared byreacting aroylpyrrolidinones of the formula (II) in whichArand Arare as defined in the descriptionwith an acid, if appropriate in the presence of a diluent.

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The invention relates to substituted cinnamic acids and cinnamic acid esters of formula (I), wherein X represents F, Cl or J and R and R are the same or different and represent hydrogen, an optionally substituted C -C -alkyl radical or an optionally substituted benzyl radical. Substituted indanone carboxylic acid esters are produced using said substituted cinnamic acid and cinnamic acid ester in a technically simple and non-dangerous manner as far as safety is concerned.

Substituted cinnamic acids and cinnamic acid esters

Bistrifluoromethylbenzylamines are obtained in a simple manner in high purities and with good yields by catalytic hydrogenation of the corresponding bistrifluoromethylbenzonitriles if the process is carried out in the presence of Raney cobalt, at least one aliphatic ether and ammonia.

Process for the preparation of bistrifluoromethylbenzylamines

The invention relates to a novel process for the preparation of 2-amino-2-arylehanols of the formula (I) ##STR1## in which Ar represents aryl or hetaryl each unsubstituted or identically or differently monosubstituted to pentasubstituted, where as substituents there may be mentioned:

Process for the preparation of 2-amino-2-arylethanols and novel

The invention relates to a novel process for the preparation of 2-amino-2-arylethanols of the formula (I) ##STR1## in which Ar represents aryl or hetaryl each unsubstituted or identically or differently monosubstituted to pentasubstituted, where as substituents there may be mentioned:

Method of preparing 2-trifluoromethoxy-benzenesulphonamide

Herbicidal fluorothiadiazolyl oxyacetamides

A new process for the production of high purity (cyclo)aliphatic diurethanes from (cyclo)aliphatic diamines, alcohols and urea in a multistep reaction in which (1) urea is reacted with alcohol with elimination of ammonia, (2) diamine is then introduced into the reaction mixture, optionally in the form of a solution in alcohol, and reacted with continuous release of ammonia and (3) the reaction mixture is freed from volatile components by distillation. The diurethanes produced by this process are useful as starting materials for the production of the corresponding diisocyanates by thermal urethane cleavage.

Process for the production of diurethanes and their use for the

A metal-free dyestuff of the formula ##STR1## and metal complex thereof wherein: Fb=the radical of a dyestuff selected from the group consisting of mono- or polyazo, anthraquinone, phthalocyanine, formazan, dioxazine and triphenylmethane radicals,

Bifunctional reactive dyestuffs containing vinylsulphone or

The invention relates to new fluoromethylated polycyanobenzenes of the formula ##STR1## in which X represents hydrogen, fluorine or chlorine,

Fluoromethylated polycyanobenzenes, their alkali metal cyanide adducts,

Herbicidal cycloalkyl-substituted thiadiazolyloxyacetamides of the formula ##STR1## in which R.sup.1 represents hydrogen, or represents an optionally substituted radical selected from the group consisting of alkyl, alkenyl, alkynyl and aralkyl,

Herbicidal cycloalkyl-substituted thiadiazolyloxyacetamides

Fluorine-containing acetophenones, optionally halogenated on the CH.sub.3 group, of the formula ##STR1## in which X represents hydrogen, chlorine or bromine and the radicals R.sub.1 to R.sub.5 have the following meaning,

Fluorine-containing acetophenones optionally halogenated on the CH.sub.3

The invention relates to new polycyanopyrimidines of the formula ##STR1## in which R represents chlorine or cyano, and to a process for their preparation.

Polycyanopyrimidines and process for their preparation

An oxirane of the formula ##STR1## in which Ar represents phenyl optionally substituted with from one to three halogen atoms,

Aryl-alkinyl halocycloalkyl oxiranes

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Bergisch Gladbach, Germany

Ernst Kysela