| abstract |
New stereoisomers of N- (R) - (1-aryl-ethyl) -1-alkyl-2,2-dichloro-cyclopropanecarboxamides of the formula (Ia) and (Ib) and their mixtures, in which R¹, R² and X have the meanings given in the description, their new intermediates - the corresponding carboxylic acid esters, carboxylic acids and carboxylic acid chlorides - and the use of Stereoisomers or the mixtures of the compounds of the formulas (Ia) and (Ib) for combating pests.n n n The new compounds are generally defined by the formulas (Ia) and (Ib) and can be prepared by analogy processes, e.g. be prepared from suitable carboxylic acid chlorides with suitable amines and, if appropriate, the stereoisomer mixtures are separated. |