| abstract |
New uracil-substituted phenylsulfamoyl carboxamides of formula (I) and salts thereof, wherein A = oxygen or sulfur; X.sup.1.n. = H, a halogen atom, a C 1-7 alkyl-C 1-6 alkyl group; X.sup.2.n. = H, CN, CS-NH.sub.2, halogen, C.sub.1-C.sub.4-alkyl, C.sub.1-C.sub.2-. sub.4-haloalkyl; X.sup.3.n. = H, CN, C.sub.1-C.sub.6-alkyl, C.sub.1-C.sub.6-alkoxyalkyl, C.sub.3 cycloalkyl, C.sub.3., C.sub.6-alkenyl, C.sub.3. n-alkynyl, optionally substituted benzyl; R.sup.1.n., R.sup.2.n. = H, halogen atom, optionally substituted hydroxy, C.sub.1-C.sub.10 -alkyl, C.sub.2-C.sub.10-alkenyl Cycloalkyl, phenyl, benzyl or C.sub.5, C.sub.10.n.-alkynyl, C.sub.3. cycloalkenyl, or R.sup.1-cycloalkenyl; + R.sup.2.n. together with the atom to which they are attached form a 3 to 7 membered heterocyclic ring; Q is selected from the group consisting of Q.sup.1 and Q.sup.40.n. specific meanings. Their use as herbicides and to achieve plant drying or defoliation. |