Herbicidal sulfonamides
    7.
    发明公开
    Herbicidal sulfonamides 失效
    除草剂磺酰胺

    公开(公告)号:EP0205348A3

    公开(公告)日:1987-06-24

    申请号:EP86304470

    申请日:1986-06-11

    摘要: Sulfonylurea derivatives of the formula
    wherein
    E is CH 2 or a single bond; W is 0 or S; R is H or CH 3 ; R, is halogen, nitro or a specified organic group; R 2 is an organic substituent; A is a 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 novel compounds may be made by a variety of routes, e.g. by reacting an appropriate benzenesulfonyl isocyanate or isothiocyanate with the appropriate heterocyclic amine.

    摘要翻译: 下式的磺酰脲衍生物:其中E是CH2或单键; W是0或S; R是H或CH 3; R 1是卤素,硝基或特定的有机基团; R2是有机取代基; A是单环或双环杂环基团,例如 嘧啶基或三嗪基; 并且它们的农业上合适的盐表现出有效的除草活性。 有些还显示出植物生长调节剂的作用。 新化合物可以通过多种途径制备,例如, 通过使合适的苯磺酰基异氰酸酯或异硫氰酸酯与合适的杂环胺反应。