Sulfonamides of the formula
wherein J is a substituted phenyl moiety fused to a saturated or unsaturated hetero- or carbocyclic ring;
R is H or CH3;
W isOorS;
A is a substituted mono- or bicyclic heterocyclic group, e.g. pyrimidinyl or triazinyl;
and their agriculturally suitable salts, exhibit potent herbicidal activity. Some also show a plant growth regulant effect.
The compounds may be formulated for agricultural use in conventional manner. They may be prepared by a variety of synthetic routes, e. g. by reacting a novel sulfonyl isocyanate or isothiocyanate of formula JSO2NCW with an appropriate heterocyclic amine HN-A.
式中的磺酰胺类
其中 J 是与饱和或不饱和杂环或碳环融合的取代苯基;
R 是 H 或
CH3
W是O或S;
A 是取代的单环或双环杂环基团,如
嘧啶基或三嗪基;
及其农业上适用的盐类具有很强的除草活性。有些化合物还具有植物生长调节作用。
这些化合物可按常规方法配制成农用制剂。它们可以通过多种合成路线制备,例如,将式 JSO2NCW 的新型磺酰基
异氰酸酯或异
硫氰酸酯与适当的杂环胺 HN-A 反应。