PROCESS FOR PREPARATION OF MENTHOL BY HYDROGENATION OF ISOPULEGOL

PROCESS FOR PREPARATION OF MENTHOL BY HYDROGENATION OF ISOPULEGOL

The present invention relates to a process for preparing racemic or optically active menthol by catalytically hydrogenating racemic or optically active isopulegol in the presence of hydrogen and catalysts which comprise nickel-, copper-, zirconium- and molybdenum-containing compounds. The present in...

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Hauptverfasser: HEYDRICH GUNNAR, EBEL KLAUS, GRALLA GABRIELE, BERGNER EIKE JOHANNES
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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creator HEYDRICH GUNNAR
EBEL KLAUS
GRALLA GABRIELE
BERGNER EIKE JOHANNES
description The present invention relates to a process for preparing racemic or optically active menthol by catalytically hydrogenating racemic or optically active isopulegol in the presence of hydrogen and catalysts which comprise nickel-, copper-, zirconium- and molybdenum-containing compounds. The present invention relates specifically to a corresponding process far continuously catalytically hydrogenating L-isopulegol to L-menthol.
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subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
title PROCESS FOR PREPARATION OF MENTHOL BY HYDROGENATION OF ISOPULEGOL
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