Cyclohexenonedioxothiochromanoyl derivatives

摘要

Cyclohexenonedioxothiochromanoyl derivatives of the formula IwhereX is oxygen, sulfur, S=O, S(=O)2, CR4R5, C=O or C=NR6, the other substituents are as defined in the specification, and and agriculturally useful salts thereof; processes for preparing the cyclohexenonedioxotheiochromanoyl derivatives; compositions comprising them, and the use of these derivatives or of compositions comprising them for controling undesirable piants.