Bayer Aktiengesellschaft

Agfa-gevaert Ag

Agfa-gevaert

Agfa-gevaert Aktiengesellshcaft

Agfa Aktiengesellschaft Ag

Bayer Aktiengesenllschaft

Klaus Wagner

Christoph Erdelen

Robert R Schmidt

Gerd Hanssler

Wilhelm Brandes

Hans-Joachim Santel

Andreas Turberg

Norbert Mencke

Heinz Forster

Gunter Helling

Ernst Roos

Ulrike Wachendorff-Neumann

Klaus Lurssen

Wilhelm Stendel

Wolfram Andersch

Reinhard Lantzsch

Ludwig Eue

Johannes Sobel

Franz Moll

Bruno Mucke

Lothar Endres

Friedhelm Sommer

Wolfgang Leicht

Gunter Junkers

Hans Scheinpflug

Winfried Joentgen

Torsten Groth

Gunter Renner

Jurgen Hartwig

Peter Bell

Olaf Hansen

Fritz Nittel

Otto Lapp

Thomas Stetzer

Walter Patzold

Peter Koepff

J Urgen Hartwig

Heinz Sch&uuml;tz

Detlev Kapitza

Gerald Karich

Herbert Gareis

Wolfgang Graesser

Cyclic guanidine derivatives and their use as pesticides

Substituted guanidine derivatives

Color photographic silver halide material

The present invention relates to a novel process for preparing pyridylmethyl isothiocyanates of the formula (I) ##STR1## in which R.sup.1 represents halogen or C.sub.1 -C.sub.4 -alkyl, characterized in that in a first step, amines of the formula (II) ##STR2## in which R.sup.1 is as defined above, are reacted with xanthogenates of the formula (III)

Process for preparing pyridylmethyl isothiocyanates

1-heterocyclyl methyl-2-nitro-or-cyanoiminidazoline salts, process for

Process for preparing pyridylmethyl isothiocyanates of the formula (I) ##STR1## comprising reacting amines of the formula (II): ##STR2## with xanthogenates of the formula (III):

A photographic silver halide material having a support and at least one layer which is deposited thereon and which contains a polypeptide, at least 90 mole % of which consists of structural units of formula I, ##STR1## where R represents OH, NH.sub.2, NHR.sub.1, NR.sub.1 R.sub.2, NH-- or NR.sub.1 --

Photographic silver halide material

A silver halide having at least two halides of differing atomic numbers may successfully be produced with a more uniform halide distribution within certain zones or throughout the entire volume of the individual grain and from grain to grain, if a portion or the entire quantity of the halide of the higher atomic number is dissolved in an aqueous silver salt solution and the resulting solution is introduced at any stage into the emulsion preparation process.

Process for the production of silver halide emulsions

Insecticidal substituted diazacyclohexanes of the formula ##STR1## in which R.sup.1 is a heterocyclic radical,

Substituted aza(cyclo)alkanes

Improved photographic properties are obtained if the photographic silver halide material contains a copolymer with polypeptide segments, wherein the polypeptide segments are derived from polypeptides with an average molecular weight M.sub.w of 2000 to 40000.

Silver halide emulsions with tabular grains showing increased aspect ratio are produced by adding to the precipitiation vessel a compound of the formula I: ##STR1## in which R.sub.1 means H or optionally substituted alkyl, aralkyl or cycloalkyl

Process for the production of a silver halide emulsion

Insecticidally active substituted aza(cyclo)alkanes of the formula (I) ##STR1## in which R.sup.1 represents a five- or six-membered heterocyclic grouping which contains 1, 2, 3 or 4 nitrogen atoms and/or one or two oxygen atoms or sulphur atoms as the heteroatom ring members--the number of heteroatoms being 1, 2, 3 or 4--and which is optionally substituted

Novel herbicidal fluorobenzothiazolyloxyacetamides of the formula ##STR1## in which R.sup.1 represents hydrogen or an optionally substituted radical from the group consisting of alkyl, alkenyl, alkinyl and aralkyl,

Herbicidal fluorobenzothiazolyloxyacetamides

New herbicidal fluorobenzothiazolyloxyacetamides

Growing community of inventors

Bergisch Gladbach, Germany

Klaus Wagner