Insect antifeedant activities of some halo substituted aryl 1,3-oxazine-2-amines have been measured using 4th instar larvae Achoea janata L by castor leaf discs-Dethler’s method. The highly halo substituted oxazine amines have shown good insect antifeedant activities. The 1,3-oxazine amines have been synthesised by greener method by solvent-free cyclization of aryl enones with urea under microwave irradiation. The yields of the oxazines were more than 80%. The synthesised oxazines were characterized by their physical constants, analytical and spectroscopic data.
International Letters of Chemistry, Physics and Astronomy (Volume 23)
G. Thirunarayanan et al., "Insect Antifeedant Potent Unsaturated 1,3-Oxazine-2-Amines", International Letters of Chemistry, Physics and Astronomy, Vol. 23, pp. 66-81, 2014