| abstract |
Isoxazol- and isothiazol-5-carboxylic acid amides have formula (I), in which X stands for oxygen or sulphur, R<1> stands for hydrogen, if necessary substituted alkyl, cycloalkyl, cycloalkenyl, alkenyl, (if necessary epoxydized at the double bond), alkinyl, alkoxy, a heterocyclic residue or phenyl; R<2> stands for a derived carboxylic function; and R<3>, R<4> have the meaning given in the description. Also disclosed are herbicides containing the compounds (I). |