Compounds of the general formula
wherein
A is
B is Cl or Br:
R is carboxylic ester, amide, Cl, CF3, N02 or various sulfur containing groups:
R1 is H, halogen, NO2, CH3, OCH, or CF,;
X and Z are independently H, CH3, Bf, Cl, OCH3, CH2CH3, CH2OCH3 or OCH2CH3; and
Y is halogen, CN, NO or various organic groups; and their agriculturally suitable salts; exhibit potent herbicidal activity. Some can also be used to regulate plant growth. The compounds can be made by reacting the appropriately substituted benzenesulfonyl or pyridinesulfonyl isocyanate with the appropriate 2-aminopyrimidine they can be formulated for agricultural use in conventional manner.
Compounds wherein R is carboxyl are of interest as intermediates for the preparation of the compounds (I).
通式如下的化合物
其中
A 是
B 是 Cl 或 Br
R 是
羧酸酯、酰胺、Cl、
CF3、N02 或各种含
硫基团:
R1 是 H、卤素、
NO2、
CH3、OCH 或 CF;
X 和 Z 独立地为 H、 、Bf、Cl、O 、CH2 、CH2O 或 OCH2 ;以及
Y 是卤素、CN、NO 或各种有机基团;以及它们在农业上适用的盐;具有强大的除草活性。有些还可用于调节植物生长。这些化合物可以通过适当取代的苯磺酰基或
吡啶磺酰基
异氰酸酯与适当的 2-
氨基嘧啶反应制成,它们可以按常规方式配制成农用产品。
R 为羧基的化合物可作为制备化合物 (I) 的中间体。