| abstract |
Novel benzophenonhydrazone derivatives represented by formula (I): wherein: - R1 is halogen; - R2 is hydrogen or C1-4 alkyl; - R3 is cyano, optionally substituted C1-4alkyl, C2-4alkenyl, C3-4alkynyl, C1-4alkylcarbonyl or C1-4alkoxy-thiocarbonyl; - R4 is hydrogen, phenyl, optionally substituted C1-6 alkyl, optionally substituted C2-8 alkenyl, -CO-R8, -CO-O-R9 or O R10-R11 - R5 is hydrogen, formyl, phenyl, C1-8 alkyl optionally substituted, optionally substituted C2-8 alkenyl, optionally substituted C3-8 alkynyl, C1-8 alkyl (optionally substituted) -carbonyl, C1-6 alkyl (optionally substituted) -oxalyl, C1-8 (optionally substituted) -carbonyl, alkoxy C1-8 (optionally substituted) -oxalyl, C3-8 cycloalkyl (optionally substituted) -carbonyl or optionally substituted benzoyl; - R6 is hydrogen or halogen; - R7 is hydrogen, halogen or C1-2alkyl, C1-4alkylcarbonyl or C1-4alkoxy-thiocarbonyl; - n is 0, 1 or 2, with the proviso that n is 0 when R3 is cyano, C1-4alkyl-carbonyl or C1-4alkoxy-thiocarbonyl; -> is a simple link in the Anti or Sin way. The benzophenonhydrazone derivatives of formula (I) have excellent insecticidal activity. |