Dihydrophenanthrene

Phenanthreoids are chemical compounds formed with a phenanthrene backbone. Those compound are naturally occurring in plants, although they can also be synthetized.

Phenanthrols are any of five isomeric phenols derived from phenanthrene (1-Phenanthrol, 2-Phenanthrol, 3-Phenanthrol, 4-Phenanthrol, 9-Phenanthrol). These molecules can be biomarkers of smoking and/or PAH worker exposure.

Under to form dihydrophenanthrenes.

Phenanthrenes have been reported from higher plants, mainly in the Orchidaceae family. A few phenanthrenes have been found in the Hepaticae class and Dioscoreaceae, Combretaceae and Betulaceae families.

The rhizome of Dioscorea communis contains phenanthrenes (7-hydroxy-2,3,4,8-tetramethoxyphenanthrene, 2,3,4-trimethoxy-7,8-methylenedioxyphenanthrene, 3-hydroxy-2,4,-dimethoxy-7,8-methylenedioxyphenanthrene, 2-hydroxy-3,5,7-trimethoxyphenanthrene and 2-hydroxy-3,5,7-trimethoxy-9,10-dihydrophenanthrene).

The dimeric phenanthrenoid 8,8'-bidehydrojuncusol and the monomeric dehydrojuncusol can be isolated from Juncus acutus.

Perakensol is a phenanthrenoid that can be isolated from Alseodaphne perakensis.

Phenanthrenes have been reported in species of Dendrobium, Bulbophyllum, Eria, Maxillaria, Bletilla, Coelogyne, Cymbidium, Ephemerantha and Epidendrum.

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