| 摘要 |
NEW MATERIAL:The compound of formula I [one of X<1> and X<2> is electrophilic group and the other is H or electrophilic group; R<1> is a group bonded through N; R<2> is a group bonded through H, C, N or O; n is 0-2; A<0> is heterocyclic group provided that when R<2> is H, R<1> is group of formula VI (R<3a> is H, alkyl, aralkyl, etc.; R<4a> is H, alkyl, alkenyl, pyridyl-alkyl, etc.); A<0> is (substituted) pyridyl, (substituted) thiazolyl, etc.] or its salt. EXAMPLE:1-[N-(6-chloro-3-pyridylmethyl)-N-formyl]amino-1-(N-form-yl-N- methyl) amino-2-nitroethylene. USE:An insecticidal and miticidal agent. It also exhibits strong insecticidal action when a plant containing said compound absorbed in the plant is sucked or eaten by a vermin or is brought into contact with a vermin. PREPARATION:The objective compound of formula I can be produced e.g. by reacting a compound of formula II with an amino compound of formula III or is salt and reacting the resultant compound of formula IV with an amino compound of formula V. |
