Insecticidal fatty acids and triglycerides from Dirca palustris.
Five compounds, 1-5, were isolated from the seed hexane extract of Dirca palustris. Compounds 1-3 were triglycerides, and 4 and 5 were linoleic and oleic acids, respectively. Compounds 1-3 were not biologically active; however, 4 (linoleic acid) and 5 (oleic acid) were insecticidal against fourth instar Aedes aegyptii larvae and exhibited potent feeding deterrent activity against neonate larvae of Helicoverpa zea, Lymantria dispar, Orgyia leucostigma, and Malacosoma disstria.
Ramsewak
R S
RS
Bioactive Natural Products and Phytoceuticals, Department of Horticulture and National Food Safety and Toxicology Center, Michigan State University, East Lansing, Michigan 48824, USA.
Nair
M G
MG
Murugesan
S
S
Mattson
W J
WJ
Zasada
J
J
D000330:Aedes / Q000187:drug effects; D000818:Animals; D005230:Fatty Acids, Nonesterified / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D007313:Insecta / Q000187:drug effects; D007306:Insecticides / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D010936:Plant Extracts / Q000032:analysis; D027824:Rosaceae / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry; D014280:Triglycerides / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology
D005230:Fatty Acids, Nonesterified; D007306:Insecticides; D010936:Plant Extracts; D014280:Triglycerides