PRODUCTION OF ALDEHYDE DERIVATIVE

PURPOSE:To economically, simply and safely obtain the subject derivative useful as an synthetic intermediate for vitamin A by acylating one or two of specific compounds and subsequently subjecting the acylation product to a transition reaction. CONSTITUTION:A method for producing the objective compo...

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Bibliographic Details
Main Authors KURODA NORITAKA, KASHIWA KENICHI, KANEKO TATSUHIKO
Format Patent
LanguageEnglish
Published 20.12.1994
Edition5
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:PURPOSE:To economically, simply and safely obtain the subject derivative useful as an synthetic intermediate for vitamin A by acylating one or two of specific compounds and subsequently subjecting the acylation product to a transition reaction. CONSTITUTION:A method for producing the objective compound of formula III (R is saturated hydrocarbon) comprises acylating a compound of formula I or II (X is halogen) or their mixture and, if desired, subsequently subjecting the reaction product to a transition reaction, which is preferably performed in the presence of a catalyst comprising a strong acid, Friedel-Craft catalyst, cation exchange resin or a group VIII metal salt.
Bibliography:Application Number: JP19930142131