| abstract |
Benzenesulfonamide derivatives of the formulan wherein R, is selected from a variety of optionally substituted alkyl and alkenyl groups;n R 2 is H, F, Cl, CH 3 ,OCH 3 or CF 3 ; R 3 is H or CH 3 ; A is selected from a variety of substituted heterocyclic groups, e.g. pyrimidin-2-yl or 1,3,5-triazin-2-yl; and their agriculturally suitable salts, exhibit herbicidal and plant growth regulant activities. n The novel compounds may be formulated for use in conventional manner. They may be made e.g. by reacting an appropriate arylsulfonyl isocyanate with an appropriate aminoheterocycle of formula R 3 NHA. |