Abstract
AbstractAdditional evidence for the structure of derride is given.The formation of 4‐hydroxycumarone‐5‐carboxylic acid by treatment of derride with alcoholic potash could be definitely proved.Derridenone was oxidised with hydrogen peroxide in alkaline medium and furan‐2,3‐dicarboxylic acid was isolated from the degradation products.Rissic acid and 2‐hydroxy‐4,5‐dimethoxybenzoic acid were found amongst the oxidation products obtained by oxidising dehydroderride with potassium permanganate in acetone.
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