Two chromene derivatives from Calyptranthes tricona.
Two alpha-monomethyl chromene derivatives were isolated from the leaf essential oil of Calyptranthes tricona from Brazil which were characterized by 1H- and 13C-NMR. Besides these components, which represent about half of the oil, classical terpenoid structures could be identified, among which cis-beta-farnesene is the most abundant (26.6%). A biosynthetic pathway could be proposed to explain the formation of the chromene derivatives in the plant.
Menut
C
C
Université Montpellier II, France. cmenut@univ-montp2.fr
Bessiere
J M
JM
Ntalani
H
H
Verin
P
P
Henriques
A T
AT
Limberger
R
R
D001578:Benzopyrans / Q000737:chemistry / Q000302:isolation & purification*; D008401:Gas Chromatography-Mass Spectrometry; D009682:Magnetic Resonance Spectroscopy; D019684:Magnoliopsida / Q000737:chemistry* / Q000145:classification; D009822:Oils, Volatile / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry
C412073:5,7-dimethoxy-11,14-dimethyl-2H-benzopyran; C412074:5,7-dimethoxy-2-methyl-2H-benzopyran; D001578:Benzopyrans; D009822:Oils, Volatile