CONTINUOUS PROCESS FOR PRODUCING DL ALPHA TOCOPHEROL

CONTINUOUS PROCESS FOR PRODUCING DL ALPHA TOCOPHEROL

A continuous process for the production of dl-alpha-tocopherols (I) by condensing trimethhydroquinone (II) with a reactant (III) selected from phytol, isophytol and phytadiene in the presence of an acid condensation catalyst, in which II, III and the acid catalyst are progressively and simultaneousl...

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1. Verfasser: DONALD R. NELAN
Format: Patent
Sprache:eng
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CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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creator DONALD R. NELAN
description A continuous process for the production of dl-alpha-tocopherols (I) by condensing trimethhydroquinone (II) with a reactant (III) selected from phytol, isophytol and phytadiene in the presence of an acid condensation catalyst, in which II, III and the acid catalyst are progressively and simultaneously introduced into a heated packed column, the reaction mixture being continuously flowed in liquid form through the column, and crude I being progressively withdrawn from the opposite end of the column. Process has short reaction time and gives high yields of a crude product which is more easily purified than the product of prior art processes.
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subjects CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
title CONTINUOUS PROCESS FOR PRODUCING DL ALPHA TOCOPHEROL
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