Abstract:
The present invention relates to a method for the regioselective hydroformylation of polyunsaturated acyclic hydrocarbons, which are 1, 3 butadienes, which, in the 2 position, bear a saturated or monounsaturated or polyunsaturated acyclic hydrocarbon radical. The present invention also relates to the production of secondary products of these hydroformylation products, especially of ambrox.
Abstract:
The present invention relates to phosphine borane compounds comprising imidazol groups, optically active ligands produced using said compounds, transition metal complexes comprising such ligands, and catalyzers comprising said transition metal complexes. The present invention further relates to methods for producing each of the phosphine borane compounds, the optically active ligands, the transition metal complexes, and the catalyzers, as well as the use of the catalyzers for organic transformation reactions. The present invention further relates to a method for producing phosphor compounds comprising imidazol groups and comprising optically active ligands, using phosphine borane compounds comprising imidazol groups.
Abstract:
The invention relates to a process for the production of 1,6-difunctionalized hexane derivatives from 1,3-diunsaturated hydrocarbons, preferably butadiene, wherein a hydroformylation with carbon monoxide and hydrogen is performed in the presence of an at least dihydric alkanol and during the hydroformylation the temperature is increased. The reaction yields the acetals of the 1,6-hexanedial derivatives which are isolated and further reacted to obtain the desired 1,6-difunctionalized hexane derivatives, in particular 1,6-hexanediamine, 1,6-hexanediol and adipic acid.
Abstract:
The invention relates to imidazole group-containing phosphorus compounds according to general formula (I) or (II), wherein W is phosphorus (P) or phosphite (P=O), to optically active ligands produced while using the same, to transition metal complexes containing said ligands, and to catalysts comprising said transition metal complexes. The invention further relates to the respective methods for producing the phosphorus compounds, the optically active ligands, the transition metal complexes and the catalysts, and to the use of the catalysts for organic transformation reactions.