Synthesis and Insecticidal Activities of 1,5‐Disubstituted‐1,3,5‐hexahydrotriazine‐2‐N‐nitroimines

Twelve novel 1,5-disubstituted-hexahydrotriazine-2-N-nitroimines (2a~2l) were synthesized with N-nitro-S-methylisothiourea and substituted benzylamines as raw materials via nucleophilic substitution and Manich reactions in turn. Their structures were elucidated and confirmed by 1 H NMR, IR spectra and elemental analysis. The preliminary insecticidal activity tests indicated that all the target compounds have preferable insecticidal activity at the concentration of 500 mg/L.