The isolation, identification and properties of 2,3-dihydro-2,3-dihydroxybenzoic acid. An intermediate in the biosynthesis of 2,3-dihydroxybenzoic acid

Add time:07/29/2019    Source:sciencedirect.com

An intermediate in the conversion of chorismate into 2,3-dihydroxybenzoate has been formed using cell-free extracts of Aerobacter aerogenes. The new compound has been isolated and identified as 5,6-dihydroxycyclohexa-1,3-diene-1-carboxylic acid. The trivial name 2,3-dihydro-2,3-dihydroxybenzoic acid is suggested for this compound. Nuclear magnetic resonance, infrared, ultraviolet and mass spectra, together with some other properties of the new intermediate are described. 2,3-Dihydro-2,3-dihydroxybenzoic acid is dehydrated by heating under acid or alkaline conditions to give mainly 3-hydroxybenzoic acid together with some salicylic acid.

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