PROCESS FOR THE PREPARATION OF ENANTIOMERICALLY PURE 3-HYDROXYOCTANEDIOIC ACID DIESTERS BY ASYMMETRIC CATALYTIC HYDROGENATION

PROCESS FOR THE PREPARATION OF ENANTIOMERICALLY PURE 3-HYDROXYOCTANEDIOIC ACID DIESTERS BY ASYMMETRIC CATALYTIC HYDROGENATION

The invention relates to a process for the preparation of compounds of the general formula I in which R1 and R2 are identical or different and are a C1-C20-alkyl group, C~-12-cycloalkyl group, C~-C12- aralkyl group or a mono- or binuclear aryl group, in which a ketone of the formula III or IV in whi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GEWALD, RAINER, LABAN, GUNTER
Format: Patent
Sprache:eng ; fre
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung:The invention relates to a process for the preparation of compounds of the general formula I in which R1 and R2 are identical or different and are a C1-C20-alkyl group, C~-12-cycloalkyl group, C~-C12- aralkyl group or a mono- or binuclear aryl group, in which a ketone of the formula III or IV in which R1 and R2 have the above meaning, is asymmetrically hydrogenated.