Abstract:
A process for producing 6-dimethylaminomethyl-1-(3-hydroxy- or 3-C1-C4 alkoxyphenyl)-cyclohexane-1,3-diols from 6-dimethylaminomethyl-1-hydroxy-1-(3-hydroxy- or 3-C1-C4 alkoxyphenyl)-cyclohexane-3-ones by catalytic hydrogenation in the presence of heterogeneous or homogeneous catalysts, or by using metal hydrides.
Abstract:
A process for producing 6-dimethylaminomethyl-1-(3-hydroxy- or 3-C1-C4 alkoxyphenyl)-cyclohexane-1,3-diols from 6-dimethylaminomethyl-1-hydroxy-1-(3-hydroxy- or 3-C1-C4 alkoxyphenyl)-cyclohexane-3-ones by catalytic hydrogenation in the presence of heterogeneous or homogeneous catalysts, or by using metal hydrides.
Abstract:
Methods for the dehydration of substituted 1-amino-3-aryl-butan-3-ol compounds for the preparation of substituted 3-aryl-butyl-amine compounds.
Abstract:
The present invention is directed to novel rhodium-phosphorus complexes of formula: [Rh(PP′)(solv)2]X the process for their preparation and their use as catalysts in the ring opening reaction of heteronorbornenes and other α,β-unsaturated compounds.
Abstract:
Methods for the dehydration of substituted 1-amino-3-aryl-butan-3-ol compounds for the preparation of substituted 3-aryl-butyl-amine compounds.
Abstract:
N-Phenylpyrrolebisphosphines of the formula I metal complexes of these N-phenylpyrrolebisphosphines and their use in metal-catalyzed reactions.
Abstract:
A process is described for the preparation of a precursor alcohol of (±)-2-[thienyl(1-methyl-1H-pyrazol-5-yl)methoxy]-N,N-dimethyletanamine, and more generally for thyenylazolylalcoxyethanamines and their enantiomers. The process involves the asymmetric reduction of a prochiral ketone in the presence of a chiral ruthenium (II) catalyst system comprising at least a bidentate phosphorous-containing ligand and a diamine ligand to yield chiral alcohols. The chiral alcohols are further O-alkylated to yield corresponding pharmaceutically active ethanamines.