METHOD FOR PREPARING 4-[3,5-BIS(2-HYDROXYPHENYL)-[1,2,4]TRIAZOL-1-YL]-BENZOIC ACID

METHOD FOR PREPARING 4-[3,5-BIS(2-HYDROXYPHENYL)-[1,2,4]TRIAZOL-1-YL]-BENZOIC ACID

A method for preparing 4-[3,5-bis(2-hydroxyphenyl)-[1,2,4]triazol-1-yl]benzoic acid of formula (I) by reaction of 2-(2-hydroxyphenyl)benz[e][1,3]oxazin-4-one of formula (II) with 4-hydrazinobenzoic acid of formula (III) in an organic acid or in a mixture of an organic acid and an organic solvent.

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Hauptverfasser: HRADIL PAVEL, KVAPIL LUBOMIR, SLEZAR PETR, GREPL MARTIN, MELNICKY RADEK
Format: Patent
Sprache:eng
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CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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creator HRADIL PAVEL
KVAPIL LUBOMIR
SLEZAR PETR
GREPL MARTIN
MELNICKY RADEK
description A method for preparing 4-[3,5-bis(2-hydroxyphenyl)-[1,2,4]triazol-1-yl]benzoic acid of formula (I) by reaction of 2-(2-hydroxyphenyl)benz[e][1,3]oxazin-4-one of formula (II) with 4-hydrazinobenzoic acid of formula (III) in an organic acid or in a mixture of an organic acid and an organic solvent.
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subjects CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
title METHOD FOR PREPARING 4-[3,5-BIS(2-HYDROXYPHENYL)-[1,2,4]TRIAZOL-1-YL]-BENZOIC ACID
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