| abstract |
NEW MATERIAL: A compound of formula I (wherein R 1 and R 2 are each Cl, Br, an alkyl, a halogenoalkyl or a halogenoalkoxyl; R 3 is H or F; and at least either of R 1 and R 1 is a halogenoalkyl). n EXAMPLE: 3-Cyano-4-(2-methyl-3-trifluoromethylphenyl)pyrrole. n USE: A pesticide. A bactericide, a fungicide and an intermediate thereof. n PREPARATION: A novel substituted cinnamonitrile of formula II is reacted with a sulfonylmethylisocyanide of formula III [wherein R 4 is an alkyl or a (substituted) aryl] in the presence of suitably a base (e.g. sodium hydride, sodium amide) and in the presence of a diluent (e.g. benzine, benzene, toluene or xylene) to obtain a compound of formula I. n COPYRIGHT: (C)1990,JPO |