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3-(HET)ARYLMETHYL-2-NITROMETHYLIDENE (AND 2-CYANIMINO AND 2-NITROIMINO) PYRROLIDINE, PIPERIDINE AND AZEPINE DERIVATIVES; INTERMEDIATES AND PESTICIDAL COMPOSITIONS
3-(HET)ARYLMETHYL-2-NITROMETHYLIDENE (AND 2-CYANIMINO AND 2-NITROIMINO) PYRROLIDINE, PIPERIDINE AND AZEPINE DERIVATIVES; INTERMEDIATES AND PESTICIDAL COMPOSITIONS