Alpha-substituted benzyl heterocyclic derivatives, intermediates for producing the same, and pesticides containing the same as active ingredient

摘要

A compound represented by the formula (I): wherein R<1> is an optionally substituted heterocyclic group; R<2> is optionally substituted aryl or heterocyclic group; R<3> is hydrogen, alkyl, alkenyl, or alkynyl; R<4> is hydrogen, alkyl, alkoxy, halogen, nitro, cyano, or halogenated alkyl; M is oxygen, S(O)i wherein i is 0, 1, or 2, NR<5> wherein R<5> is hydrogen, alkyl, or acyl, -Q-N=C(R<6>)-, -B-C(R<8>)=N-, -CH=N-N=C(R<9>)-, or -CH=N-A-(CR<10>R<11>)m-; and n is 0, 1, or 2, an intermediate for producing the same and an agrochemical composition containing the same as an active ingredient.