3734-54-1Relevant academic research and scientific papers
Intramolecular transesterification of depsides yields fluorescent 1H-isochromen-1-ones: Application as a chemical probe for lichen determination
Ferron, S.,Guillory, X.,Jéhan, P.,Uriac, P.
, (2022/03/16)
The reactivity of eight purified depsides obtained from six european lichens and that display as 2-oxoalkyl chain in ortho-position of the ester bond was explored. These depsides were found to lead to 1H-Isochromen-1-ones, which exhibit a distinctive blue fluorescence at 365 nm, in the presence of a 10% aqueous solution of KOH. A mechanistic explanation, involving the formation of an enolate intermediate and intramolecular transesterification, was proposed and validated by DFT. By exploiting this fluorescent phenomenon, we conceived a chemical probe (the KUV probe) that is useful for lichen determination, as exemplified on a selection of European Porpidia species.
The Isolation and Synthesis of the Lichen Depside 4-O-Demethylmicrophyllinic Acid
Elix, John A.,Jayanthi, Vilas K.
, p. 1851 - 1859 (2007/10/02)
The depside 4-O-demethylmicrophyllinic acid (1) -2-hydroxy-6-(2-oxoheptyl)benzoic acid> has been isolated from a lichen for the first time.The structure of this compound and microphyllinic acid (2) were verified
