| abstract |
Novel substituted phenoxypropionates of the formula <IMAGE> (I) in which R1 and R2 each independently are a hydrogen atom or a C1 to C6 alkyl group, X is a hydrogen or halogen atom, nitro, C1 to C6 alkyl or C1 to C6 alkoxy, a and n each independently are 1 or 2, and Ar is a group of the formula <IMAGE> wherein Y is a trifluoromethyl group, a halogen atom or a nitro, cyano or C1 to C6 alkyl group, and b is 1, 2 or 3, and their use as herbicides. Novel intermediates of the formulae <IMAGE> (III) or <IMAGE> (VII) in which formulae R1, R2, X, a and n have the meanings given above and Z1 represents halogen. |