Synthesis and activity of novel acaricidal/insecticidal 2,4-diphenyl-1,3-oxazolines

A series of substituted 2,4-diphenyl-1,3-oxazolines were synthesized and their acaricidal and insecticidal activities were examined. When either or both of the ortho-positions of the 2-phenyl group was substituted with halogen(s), an acaricidal activity against two-spotted spider mites (Tetranychus...

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Bibliographic Details
Published in:Journal of Pesticide Science 2002/02/20, Vol.27(1), pp.1-8
Main Authors: Suzuki, J. (Yashima Chemical Industry Co. Ltd., Nagano (Japan)), Ishida, T, Kikuchi, Y, Ito, Y, Morikawa, C, Tsukidate, Y, Tanji, I, Ota, Y, Toda, K
Format: Article
Language:English
Subjects:
2,4-diphenyl-1,3-oxazolines
acaricidal activity
ACARICIDES
Biological and medical sciences
Chemical control
CHEMICAL SYNTHESIS
Control
etoxazole
Fundamental and applied biological sciences. Psychology
HETEROCYCLIC COMPOUNDS
INSECTICIDES
NEW PRODUCTS
PESTICIDAL PROPERTIES
Phytopathology. Animal pests. Plant and forest protection
Protozoa. Invertebrates
TETRANYCHUS URTICAE
two-spotted spider mites
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Summary:A series of substituted 2,4-diphenyl-1,3-oxazolines were synthesized and their acaricidal and insecticidal activities were examined. When either or both of the ortho-positions of the 2-phenyl group was substituted with halogen(s), an acaricidal activity against two-spotted spider mites (Tetranychus urticae) was observed as an effect on their eggs (ovicidal activity). Hydrophobic substiuents at the para-position of the 4-phenyl group of 2-(2,6-sifluorophenyl)-4phenyl-1,3-oxazoline enhanced the acaricidal activity, and induced an insecticidal activity against green rice leafhoppers (Neophotettix cincticeps), diamondback moths (Plutella xylostella), and green peach aphids (Myzus persicae). When the 1,3-oxazoline ring was exchanged to either 1,3-oxazole or 4-methyl-1,3-oxazoline, both acaricidal and insecticidal activities were significantly decreased.
ISSN:0385-1559
1348-589X
1349-0923
DOI:10.1584/jpestics.27.1