Benzenesulfonamide derivatives of the formula
wherein R, is selected from a variety of optionally substituted alkyl and alkenyl groups;
R2 is H, F, Cl, CH3,OCH3 or CF3;
R3 is H or CH3;
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.
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 R3NHA.
式中的苯磺酰胺衍
生物
其中 R 选自各种任选取代的烷基和烯基;
R2 是 H、F、Cl、
CH3、O 或
CF3;
R3 是 H 或 ;
A 选自各种取代的杂环基团,如
嘧啶-2-基或
1,3,5-三嗪-2-基;
及其农业上适用的盐类,具有除草和植物生长调节活性。
新型化合物可按常规方法配制使用。例如,它们可以通过使适当的芳基磺酰基
异氰酸酯与适当的式 R3NHA 的
氨基杂环反应而制得。