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 present invention relates to a catalytic process for preparing an α,β-ethylenically unsaturated carboxylic acid salt, comprising contacting an alkene and carbon dioxide with a carboxylation catalyst being a transition metal complex, an alkoxide, and an organic solvent, to obtain an α,β-ethylenically unsaturated carboxylic acid salt, the organic solvent being incompletely miscible with water at a pressure of 1 bar at at least one temperature T and selected from amides and ureas, T being a temperature in the range from 10°C to 90°C.
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von C 4 -C 15 -Lactamen, bei dem ein C 1 -C 10 -Alkylnitrit mit einem C 4 -C 15 -Cycloalkan umgesetzt wird und während der Umsetzung mit einer Leuchtdiode belichtet wird. Das sich dabei bildende C 4 -C 15 - Cyclohexanonoxim wird dann weiter zu einem C 4 -C 15 -Lactam umgesetzt, der gebildete C- 1 -C 10 -Alkohol wird in die Herstellung des C- 1 -C- 10 -Alkylnitrits recycliert.
Abstract:
The present invention relates to a method for producing C4-C15 lactams, in which a C1-C10 alkyl nitrite is reacted with a C4-C15 cycloalkane and is exposed during the reaction by means of a light-emitting diode. The thus produced C4-C15 cyclohexanone oxime is then further reacted to a C4-C15 lactam, and the formed C1-C10 alcohol is recycled in the production of the C1-C-10 alkyl nitrite.
Abstract:
The present invention relates to a catalytic process for preparing an α,β-ethylenically unsaturated carboxylic acid salt, comprising contacting an alkene and carbon dioxide with a carboxylation catalyst being a transition metal complex, an alkoxide, and an organic solvent, to obtain an α,β-ethylenically unsaturated carboxylic acid salt, the organic solvent being incompletely miscible with water at a pressure of 1 bar at at least one temperature T and selected from amides and ureas, T being a temperature in the range from 10° C. to 90° C.
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.