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Chemistry of lichen constituents—VI: Mass spectra of usnic acid, lichexanthone and their derivatives
Author(s) -
Letcher R. M.
Publication year - 1968
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210010409
Subject(s) - usnic acid , mass spectrum , lichen , chemistry , ether , spectral line , mass spectrometry , organic chemistry , astrobiology , physics , chromatography , botany , astronomy , biology
The mass spectra of usnic acid, decarbousnic acid, usnetic acid and usnetol are reported and mechanistically interpreted. The mass spectra of lichexanthone and lichexanthone methyl ether were also examined, and the unusal features of the latter spectrum have been rationalized.

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