BENZIMIDAZOLE DERIVATIVE, ITS PREPARATION AND INSECTICIDAL AND MITICIDAL AGENT CONTAINING SAID DERIVATIVE AS ACTIVE COMPONENT

摘要

NEW MATERIAL:The benzimidazole derivative of formula I (R1 is H or alkyl; R2 and R3 are H, halogen, nitro, cyano, alkyl, alkenyl, alkynyl, cycloalkyl, alkoxy, etc.; R2 and R3 may together form a 5-6-membered ring containing 0-2 O or S atoms in the ring; X is O, S, methylene, sulfonyl, sulfinyl or imino). EXAMPLE:2-Methyl-1-[4=(3-tolyloxyl)benzyl]benzimidazole. USE:Insecticidal and miticidal agent. PREPARATION:The objective benzimidazole derivative of formula I can be prepared by reacting the benzimidazole compound of formula II with the substituted benzyl compound of formula III (Y is halogen, tosyloxy or mesyloxy) in the presence of an acid acceptor.