Abstract: Compounds of Formula I and II, and their agriculturally-suitable salts, are disclosed which are useful for controlling undesired vegetation ##STR1## wherein X is a direct bond; O; S; NH; N(C.sub.1 -C.sub.3 alkyl); N(C.sub.1 -C.sub.3 haloalkyl); or N(allyl);R.sup.1 is H; F; Cl; or Br;R.sup.2 is H; F; Cl; Br; CF.sub.3 ; nitro; or cyano;R.sup.4 is H; C.sub.1 -C.sub.3 alkyl; or halogen;R.sup.5 is H; C.sub.1 -C.sub.6 alkyl; C.sub.1 -C.sub.6 haloalkyl; halogen; S(O).sub.2 (C.sub.1 -C.sub.6 alkyl); or C(.dbd.O)R.sup.8 ; orR.sup.4 and R.sup.5 are taken together along with the carbon to which they are attached to form a spiro-cyclopropane ring;and R.sup.3, R.sup.8, and J are as defined in the disclosure.Also disclosed are compositions containing the compounds of Formulae I and II and a method for controlling undesired vegetation which involves contacting the vegetation or its environment with an effective amount of a compound of Formula I or II.

Abstract: This invention relates to certain cyclic sulfonamides, their agriculturally-suitable salts and compositions, and methods of their use as general or selective preemergent or postemergent herbicides.