Abstract: The invention relates to a method for carrying out CC-coupling reactions, in particular a Heck and Suzuki reaction, in the presence of supported palladium as the catalyst and a base in a monophase or multiphase solvent mixture. According to said method, palladium detaches itself from the support in a characteristic manner, is redeposited after the reaction and the quantity of palladium not deposited after the reaction is significantly lower than 5000 ppm, in relation to the palladium used.

Abstract: Supported, hydrogenating catalyst in powder form containing, as a catalytically active component, a primary precious metal component, a secondary precious metal component and one or more non-precious metal components. It is used for the hydrogenation of nitroaromatics, in particular nitrobenzene and DNT.

Abstract: Supported hydrogenating catalyst in powder form Supported, hydrogenating catalyst in powder form containing, as a catalytically active component, a primary precious metal component, a secondary precious metal component and one or more non-precious metal components. It is used for the hydrogenation of nitroaromatics, in particular nitrobenzene and DNT.

Abstract: Hydrogenation catalyst containing, as the carbon support, a carbon black with an H content of >4000 ppm and, as the catalytically active component, palladium and/or platinum or bi- or multi-metallically doped or alloyed palladium and/or platinum is prepared by addition of metal salt solutions to a suspension of the carbon black with an H content of >4000 ppm, hydrolyzing the metal salt solutions by using a basic compound and carrying out complete deposition of the metal by reduction with a reducing agent. The hydrogenation catalyst can be employed for the hydrogenation of nitroaromatics.

Abstract: A process for the preparation of the formula Ar13−xP[(Ar2(OZ)y]x  I wherein Ar1 and Ar2 are individually aromatic of 6 to 20 carbon atoms or heteroaromatic of 4 to 9 carbon atoms, each unsubstituted or substituted with at least one member of the group consisting of halogen, carboxyl, —OH, alkyl of 1 to 6 carbon atoms, phenyl and naphthyl, Ar1 has one valence and R2 has y+1 valences, x is an integer of 1, 2 or 3, y is 1 or 2, Z is carbohydrate with a glycosidic bond comprising reacting a hydrocarbon halide of the formula Z′—X  II when Z′ has the definition of Z with —OH protected and X is chlorine, bromine or fluorine with a phosphane of the formula Ar13−xP[(Ar2 (OH)y]x  III in a multi-phase reaction medium in the presence of a base and a phase transfer catalyst to form a phosphane of the formula Ar13−xP[(Ar2(OZ1)y]x  IV and removal of the protective groups to form a compound of Fo