Identification of Lichen Substances

Abstract

The number of lichen substances with known structure is about 700. It is the aim of this book to help the lichenologist and the natural product chemist in the identification of this large group of plant metabolites. It comprises methods for the isolation and identification of lichen substances by physical and spectroscopic methods, microcrystallization, thin layer chromatography, high performance liquid chromatography, gas liquid chromatography and derivatization. The main part contains the formulae, molecular weights and data about the melting points, colour reactions, UV, IR, ¹H-NMR, ¹³C-NMR and mass spectra, derivatives, TLC R_F-values, microcrystallization, HPLC and the standard lichen (which contains the corresponding compound) with references of all lichen substances described in the literature up to 1995. Tables of molecular weights, melting points and reactions of lichen substances are further auxiliaries. Finally, a key for the identification of lichen substances is presented.