| 摘要 |
The present invention relates to novel herbicidally active phenoxyphenoxyalkanecarboxylic acid esters, compositions which contain these compounds as active ingredient, and a method of selectively controlling weeds in crops of cultivated plants or of regulating plant growth which comprises the use of these compounds. The phenoxyphenoxyalkanecarboxylic acid esters have the formula <IMAGE> wherein R1 is hydrogen, halogen or cyano, R2 is hydrogen or lower alkyl, R3 is a radical OR4 or SR5, R4 is a substituted alkyl radical, an alkenyl, alkynyl, cycloalkyl radical, a substituted or unsubstituted phenyl or benzyl radical or a 5- to 6-membered heterocyclic radical, and R5 is an unsubstituted alkyl radical or has the same meaning as R4. |
