3-(5- or 3-Substituted-5- or 3-isoxazolyl)-1-allyl or alkyl-4-substituted-5-substituted or unsubstituted-2-imidazolidinones for controlling weeds

Abstract

Disclosed are compounds such as 3-[5-(1,1-dimethylethyl)-3-isoxazolyl]-1-methyl-4-hydroxy-2-imidazolidinon e; their control of weeds such as johnsongrass; the process of making them; and intermediates for making them, the compounds being represented by a Formula I: ##STR1## wherein A is ##STR2## where R is an alkyl of up to six carbon atoms; an alkenyl of up to five carbon atoms; an alkynyl of up to five carbon atoms; a cycloalkyl selected from the group consisting of cyclopropyl, cyclobutyl, cyclopentyl, and cyclohexyl; a haloalkyl of up to six carbon atoms; --R.sup.4 --O--R.sup.5, or --R.sup.4 --S--R.sup.5, where R.sup.4 is an alkylene of up to six carbon atoms and R.sup.5 is an alkyl of up to six carbon atoms; ##STR3## where Z is nitro (NO.sub.2), chloro (Cl), bromo (Br), fluoro (F), or R.sup.5, and n is 0, 1, 2, or 3; R.sup.1 is an alkyl of up to three carbon atoms, or allyl; R.sup.2 is hydroxy (OH), chloro (Cl) or bromo (Br); and R.sup.3 is hydrogen (H), an alkyl of up to four carbon atoms, allyl, or hydroxy (OH).

Dependencies are inferred from the claim text.