PREPARATION OF FORMYLTETRAHYDROPYRANS

Disclosed is a method for the preparation of formyltetrahydropyrans (I) by dehydrogenating hydroxymethyltetrahydropy- rans (II) in the presence of a copper, silver and/or gold catalyst. The formyltetrahydropyrans (I) thus obtained are useful interme- diates in the preparation of pharmaceuticals and...

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Bibliographic Details
Main Authors HENKELMANN, JO, KUEKENHOEHNER, THOMAS, GOETZ, NORBERT, SPIEGLER, WOLFGANG, BRENNER, KARL
Format Patent
LanguageEnglish
French
Published 05.03.2002
Edition5
Subjects
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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Summary:Disclosed is a method for the preparation of formyltetrahydropyrans (I) by dehydrogenating hydroxymethyltetrahydropy- rans (II) in the presence of a copper, silver and/or gold catalyst. The formyltetrahydropyrans (I) thus obtained are useful interme- diates in the preparation of pharmaceuticals and phytopathalogical products.
Bibliography:Application Number: CA19912098277