Insecticidal neolignans from Piper decurrens.
2,3-Dihydro-2-(4'-hydroxyphenyl)-3-methyl-5(E)-propenylbenzofuran (conocarpan) (1), 2-(4'-hydroxy-3'-methoxyphenyl)-3-methyl-5(E)- propenylbenzofuran (eupomatenoid-5) (2), and 2-(4'- hydroxyphenyl)-3-methyl-5(E)-propenylbenzofuran (eupomatenoid-6) (3), three known neolignans found for the first time in a species of the Piperaceae, were isolated from Piper decurrens via insecticidal bioassay-guided fractionation, along with a small quantity of a new related compound, 2,3-dihydro-5-formyl-2-(4'-hydroxyphenyl)-3-methylbenzofuran (decurrenal) (4), and 3,7,11,15-tetramethyl-2(E)-hexadecen-1-ol (trans-phytol).
Chauret
D C
DC
Department of Chemistry, University of Ottawa, Canada.
Bernard
C B
CB
Arnason
J T
JT
Durst
T
T
Krishnamurty
H G
HG
Sanchez-Vindas
P
P
Moreno
N
N
Roman
L S
LS
Poveda
L
L
D000818:Animals; D009033:Culicidae; D007306:Insecticides / Q000302:isolation & purification* / Q000633:toxicity*; D007814:Larva; D017705:Lignans / Q000302:isolation & purification* / Q000633:toxicity*; D013058:Mass Spectrometry; D010936:Plant Extracts / Q000737:chemistry / Q000633:toxicity; D010944:Plants / Q000737:chemistry*
D007306:Insecticides; D017705:Lignans; D010936:Plant Extracts