申请人:E.I. DU PONT DE NEMOURS AND COMPANY
公开号:EP0187489A1
公开(公告)日:1986-07-16
Suffonylurea derivatives of formula
wherein L is a substituted homo- or heterocyclic aromatic group;
W3 is 0 or S;
R is H or CH3;
A is a mono- or bicyclic heterocyclic group, e.g. pyrimidinyl or triazinyl;
and their agriculturally suitable salts, exhibit potent herbicidal activity. Many also show a plant growth regulant effect.
The novel compounds may be made e.g. by reacting an appropriate aromatic sulfonylisocyanate or isothiocyanate LSO2NCW3 with the appropriate aminoheterocycle RNHA.
式中 L 为取代的同环或杂环芳香基团;W3 为 0 或 S;R 为 H 或 CH3;A 为单环或双环杂环基团,如嘧啶基或三嗪基;以及它们在农业上适用的盐类的磺酰脲衍生物具有很强的除草活性。 许多还显示出植物生长调节剂的作用。 这些新型化合物可通过使适当的芳香族磺酰基异氰酸酯或异硫氰酸盐 LSO2NCW3 与适当的氨基杂环 RNHA 反应而制成。