METHOD OF PREPARING ADAMANTYLPHENYLCARBOXYLIC ACIDS

METHOD OF PREPARING ADAMANTYLPHENYLCARBOXYLIC ACIDS

organic synthesis. SUBSTANCE: adamantylphenylcarboxylic acids widely usable for synthesis of medicaments are prepared by oxidizing corresponding alkylphenyladamantanes with air oxygen in presence of variable valence metal-based catalyst and sodium bromide as initiator. Reaction is carried out in sol...

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Hauptverfasser: KRASNIKOV S.V, BETNEV A.F, KLJUEV I.V, OBUKHOVA T.A
Format: Patent
Sprache:eng
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ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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creator KRASNIKOV S.V
BETNEV A.F
KLJUEV I.V
OBUKHOVA T.A
description organic synthesis. SUBSTANCE: adamantylphenylcarboxylic acids widely usable for synthesis of medicaments are prepared by oxidizing corresponding alkylphenyladamantanes with air oxygen in presence of variable valence metal-based catalyst and sodium bromide as initiator. Reaction is carried out in solvent: acetic acid/dioxane mixture at volume ratio (10-20): 1. Weight ratio of catalyst + initiator to alkylphenyladamantane is 1: (6.9-20). Preferable temperature is 75-100 C. As catalyst, cobalt acetate/manganese acetate mixture initiated by sodium bromide can be used. Weight ratio of initial hydrocarbon to acetic acid varies between 1:15 and 1:30. EFFECT: enhanced process efficiency due to increased yield if desired products, reduced charge of catalyst, and reduced reaction time. 2 cl, 3 ex
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subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
title METHOD OF PREPARING ADAMANTYLPHENYLCARBOXYLIC ACIDS
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