High performance liquid chromatographic analysis of aliphatic lichen acids

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Abstract
Aliphatic lichen acids can be transformed into their phenacyl esters which show strong absorption in the UV (ca. λ = 240 nm) and which can be used to detect these compounds following high performance liquid chromatography. Other suitable derivatives are the p‐nitrophenyl and benzyl esters, as well as the benzoates of the alcohols prepared from the acids by reduction of the corresponding methyl esters with lithium aluminium hydride.