| abstract |
3-cyano-4-phenyl-pyrroles of the formula (I) <IMAGE> in which R represents halogen, alkyl, alkoxy, alkylthio, haloalkyl, haloalkoxy or haloalkylthio, and their use in pesticides, and new intermediates of the formula (II) . The new 3-cyano-4-phenyl-pyrroles of formula (I) can be prepared by e.g. suitable substituted fluorocinnamonitriles with suitable sulfonylmethyl isocyanides in the presence of a base and optionally in the presence of a diluent. The new substituted fluorocinnamonitriles of formula (II) can be prepared by e.g. suitable fluoranilines are first reacted with acrylonitrile and the resulting α-chloro-β-phenyl-propionitriles are dehydrohalogenated with bases or by simultaneously condensing and decarboxylating suitable fluorobenzaldehydes with cyanoacetic acid. |