abstract |
Process for the preparation of substituted derivatives of 1,4-cyclohexadiene carboxylic acid, selected from the formula **formula** in which R1 is hydrogen, alkylcarbonyl in which the alkyl moiety has from 1 to 4 carbon atoms and is straight or branched , alkoxycarboxylic in which the alkoxy moiety has 1 to 4 carbon atoms and is straight or branched. |