Abstract: A process for the preparation of mono-, bi- or poly-functional biaryls in the presence of a metal complex of the general formula IV as catalyst.

Abstract: Process for preparing monofunctional, bifunctional and/or polyfunctional biaryls of the formula (I) Ar—Ar′  (I) by reacting haloaromatics of the formula (II) Ar—X  (II) with boron compounds of the formula (IIIa), (IIIb) and/or (IIIc) in the presence of at least one palladium complex of the formula (IVa) or (IVb)

Abstract: The present invention relates to a process for the catalytic preparation of N-acylglycine derivatives. More particularly, the present invention relates to a process for the catalytic preparation of N-acylglycine derivatives by reacting an aldehyde with a carboxamide and carbon monoxide in the presence of a palladium compound, an ionic halide and an acid as catalyst.

Abstract: The invention relates to a process for the preparation of carbonyl compounds by the oxidation of alcohols in the presence of osmium compounds as catalysts in water or a solvent mixture containing water.

Abstract: This invention relates to process for asymmetric dihydroxylation of olefins using osmium catalysts to obtain monofunctional, bifunctional, and/or polyfunctional chiral 1,2-diols of the formula (I) R1R2C(OH)—C(OH)R3R4  (I) where R1 to R4 are defined herein, by reacting an olefin of the formula (II) R1R2C═CR3R4  (II) where R1 to R4 are defined as for formula (I), with molecular oxygen in the presence of an osmium compound and a chiral amine ligand in water or a water-containing solvent mixture at a pH of from 8.5 to 13.

Abstract: The present invention relates to a process for the racemization of N-acylamino acids of the formula (I) R—CH(NR1COR2)CO2H   (I) in which, in a solvent, an enantiomerically enriched mixture or an enantiomerically pure compound of the formula (I) is reacted in the presence of a transition metal salt, transition metal complex or transition metal complex salt or of a mixture thereof comprising at least one element from the group consisting of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt, preferably at a temperature of 10-150° C.

Abstract: A process for the preparation of mono-, bi- or poly-functional biaryls in the presence of a metal complex of the general formula IV 1

Abstract: A mono-, bi- and/or polyfunctional amide of the formulae (Ia) and/or (Ib),

Abstract: A process for preparing a 1-aryl-4-(arylethyl)piperazine of the formula (I) by reacting a 1-arylpiperazine of the formula (II) with an aromatic olefin of the formula (III) Ar′CR1═CHR2  (III) in an inert solvent in the presence of at least one basic catalyst, where in the formulae (I) to (III) Ar and Ar′ independently of one another are an aryl radical, selected from the group of the fused and unfused C6-C22-aromatics and the fused or unfused C5-C22-heteroaromatics which have at least one nitrogen, oxygen or sulfur atom in the ring; and R1 and R2 independently of one another are a hydrogen atom, a C1-C8-alkyl radical or an aryl radical Ar.

Abstract: The present invention relates to a process for the racemization of N-acylamino acids of the formula (I)

Abstract: A process for the preparation of 2,3-dihydroindoles of the formula (I) by reaction of halostyrenes of the formula (IIa) or (IIb) with amines of the formula (III) R1—NH2  (III) in at least one inert solvent or in water, and in the presence of at least one base.

Abstract: The present invention provides a process for producing N-acyl-protected amino acids with the general formula I by amidocarbonylation whereby carbon monoxide, an amide/nitrile and an aldehyde, are reacted in the presence of a metal catalysts such as rhodium, iridium or ruthenium catalysts.

Abstract: The invention relates to process for preparing monofunctional, bifunctional or/and polyfunctional olefins of the formulae (Ia), (Ib), (Ic) or/and (Id), where R1 to R3 are, independently of one another, hydrogen, (C1-C8)-alkyl, CN, COOH, COO-alkyl-(C1-C8), CO-alkyl-(C1-C8), aryl-(C6-C10), COO-aryl-(C6-C10), CO-aryl-(C6-C10), O-alkyl-(C1-C8), O—CO-alkyl-(C1-C8) or N-alkyl2-(C1-C8) and aryl is an aromatic radical containing up to 14 carbon atoms, where aryl is as defined above, and Ar is a heteroaromatic, by reacting haloaromatics, haloolefins or/and heterohaloaromatics of the formulae (IIa), (IIb), (IIc) or/and (IId) with olefins of the formula (III), wherein a mixture of a palladium(0) complex or a palladium(II) salt with phosphite ligands of the formulae (IVa) or/and (IVb) is used as catalyst.

Abstract: The invention relates to a process for preparing N-acylglycine derivatives of the formula (III) 1

Abstract: A process for the preparation of compounds of the general formula (I) by reacting an aldehyde compound of the general formula (II) with a urea compound of the general formula (III) in the presence of carbon monoxide and a catalytically active metal compound. Compounds of the general formula (I) are important intermediates for the synthesis of &agr;-amino acids.

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

Abstract: Process for the preparation of an N-arylethylaniline of the formula (I) Ar—N(R1)2-n(CHR2CHR3Ar′)n  (I) by reacting an aromatic olefin of the formula (II) Ar′CR3=CHR2  (II) with an aniline of the formula (III) Ar—N(R1)2-n(H)n  (III) in an inert solvent in the presence of at least one basic catalyst selected from the group consisting of alkali metal alcoholates and alkaline earth metal alcoholates or alkali metal amides and alkaline earth metal amides, where, in the formulae (I) to (III), Ar and Ar′, independently of one another, are an aryl radical selected from the group consisting of the fused and nonfused C6-C22-aromatics and of the fused or nonfused C5-C22heteroaromatics which have at least one nitrogen, oxygen or sulfur atom in the ring; R1, R2 and R3, independently of one another, are a hydrogen atom, a C1-C8-alkyl radical or an aryl radical Ar; and n is the number 1 or 2.

Abstract: A catalyst comprising rhodium and a compound of the formula (I) in which m is a number from 1 to 1000; x is a number from 0 to 4; W is a group of the formulae —CH2—CH2—, —CH(CH3)CH2—or —CH2CH(CH3)—; R is hydrogen, a straight-chain or branched C1-C5— alkyl radical; or a group of the formulae where a, b, c, d and e independently of one another are a number from 0 to 1000, at least one of the numbers a, b, c, d and e being greater than 0; R5, R6, R7, R8 and R9 are identical or different and are hydrogen, C1-C5-alkyl or a group of the formula R1 and R2 are identical or different and are a straight-chain, branched or cyclic C1-C30-alkyl radical or C6-10-aryl radical, which is unsubstituted or substituted by from one to five C1-C3-alkyl radicals, and L is C1-C5-alkyl, C1-C5-alkoxy, NO2, NR3R4, where R3 and R4 independently of one another are hydrogen or C1-C4-alkyl, or L is Cl or OH, for hydroformylation re

Abstract: Process for the preparation of N-acetyl protected amino acids of Formula I by amido carbonylation utilizing carbon monoxide, nitrile, and an aldehyde in the presence of a metal catalyst.

Abstract: Process for the telomerization of dienesThe present invention relates to a process for the telomerization of dienes, according to which the diene is reacted with a compound containing an active hydrogen atom in the presence of a palladium compound, a water-soluble phosphine ligand and a base, the water-soluble ligand being a bidentate ligand having the following formula I ##STR1## in which R is identical or different and is phenyl, C.sub.1 -C.sub.12 -alkyl or C.sub.3 -C.sub.10 -cycloalkyl, which may be unsubstituted or substituted by one or more radicals R',R' is identical or different and is SO.sub.3.sup.- M.sup.+, --NMe.sub.3.sup.+ or --COO.sup.- M.sup.+,n is an integer from 1 to 6, in each case based on a naphthyl backbone, andM is H, Na, K, Cs or R".sub.4 N.sup.+ where R" is identical or different and is H, C.sub.1 -C.sub.12 -alkyl or C.sub.1 -C.sub.10 -cycloalkyl.