Antifeedant and mosquitocidal compounds from Delphinium x cultorum cv. Magic fountains flowers.
Six volatile compounds, ethylmethylbenzene (1), 1-isopentyl-2,4, 5-trimethylbenzene (2), 2-(hex-3-ene-2-one)phenylmethyl ketone (3), E and Z isomers of 3-butylidene-3H-isobenzofuran-1-one (4 and 5), and 2-penten-1-ylbenzoic acid (6), were isolated from the mosquitocidal hexane extract of Delphinium x cultorum cv. Magic Fountains flowers. In addition, the ethyl acetate extract, which displayed corn earworm antifeedant activity, yielded 4-hydroxybenzoic acid (7) and bis(4-hydroxyphenyl)methanol (8). However, compounds 7 and 8 were not biologically active.
Miles
J E
JE
Bioactive Natural Products Laboratory, Department of Horticulture and National Food Safety and Toxicology Center, Michigan State University, East Lansing, Michigan 48824, USA.
Ramsewak
R S
RS
Nair
M G
MG
D000818:Animals; D009033:Culicidae / Q000187:drug effects*; D008401:Gas Chromatography-Mass Spectrometry; D007306:Insecticides / Q000737:chemistry*; D019684:Magnoliopsida / Q000737:chemistry*; D008956:Models, Chemical; D009036:Moths / Q000187:drug effects
D007306:Insecticides