Novel 2-nitromethylidene/2-cyanimino/2-nitro-imino-pyrrolidines and piperidines, intermediates, and their use as pesticides

摘要: Compounds of formula (I), wherein A is an unsubstituted or substituted aromatic non-aromatic, monocyclic bicyclic heterocyclic radical a ring nitrogen atom may have been replaced by group $(1,3)$N+-O- (N-oxide); R?1? hydrogen C1-C3alkyl; R2 R3 hydrogen, C1-C6alkyl, C3-C6cycloalkyl, C2-C6alkenyl C2-C6alkynyl group, C(=O)-R5, R5 C1-C4alkyl, C1-C4alkoxy, phenyl, phenoxy benzyloxy N(R6)2, each R6, independently the other, C1-C4alkyl X CH-NO2, N-CN N-NO2 and n from 1 to 3, in free form salt form, and, where appropriate, tautomers those compounds salts thereof, can be used as agrochemical active ingredients prepared manner known per se.