Sulfonamides of the formula
wherein W is 0 or S:
R is H or CH3;
A is a bicyclic heterocyclic group;
R, is an organic substituent of defined structure, or N3:
R2 is H, halogen, nitro, cyano or various organic groups; and their agriculturally suitable salts, exhibit herbicidal activity. Some also show a plant growth regulating effect.
The novel compound may be made e.g. by reaction of an appropriately substituted benzenesulfonamide with the methyl or phenyl ester of the appropriate N-heterocyclic carbamic acid.
式中的磺酰胺类
其中 W 为 0 或 S:
R 是 H 或
CH3;
A 是双环杂环基团;
R 是定义结构的有机取代基,或 N3:
R2 是 H、卤素、硝基、
氰基或各种有机基团;以及它们在农业上适用的盐类,具有除草活性。有些还具有植物生长调节作用。
新型化合物可通过适当取代的苯磺酰胺与适当的 N-杂环
氨基甲酸的甲基或苯基酯反应制成。