Abstract: This invention discloses new compounds of the formula ##STR1## WHEREIN R.sup.1 is selected from the group consisting of alkyl, cycloalkyl, alkenyl, haloalkyl, alkoxy, alkylthio, alkylsulfonyl and alkylsulfinyl; R.sup.2 is selected from the group consisting of alkyl, alkenyl, haloalkyl and ##STR2## wherein R.sup.3 and R.sup.4 are each selected from the group consisting of hydrogen and alkyl; m is an integer from 1 to 3; Y is oxygen or sulfur; X is selected from the group consisting of alkyl, alkenyl, alkoxy, alkylthio, halogen, haloalkyl, nitro and cyano; and n is an integer from 0 to 5. Further disclosed is the herbicidal utility of the foregoing compounds.