申请人:E.I. DU PONT DE NEMOURS AND COMPANY
公开号:EP0044209A1
公开(公告)日:1982-01-20
Sulfonamide derivatives of the formula
wherein
R is H, halogen, nitro, CF3, alkyl or alkoxy;
R, is H, Cl or alkyl;
R2 is H or CH3: L is Cl, Br, CN, OH or a variety of organic groups;
R8 is H. CH3 or OCH3;
W is O or S;
A is
X is H, Cl, Br or various organic groups:
Y is CH3 or OCH3:
Z is N or optionally substituted CH;
Y' is H. CH3, OCH3 or OCH2CH3; and
Q is 0 or CH2;
and their salts, exhibit herbicidal and plant growth regulant activities.. They may be formulated for use in conventional manner.
The compound may be made e.g. by reacting a novel sulfonyl isocyanate of general formula
with the appropriate 2-aminoheterocycle of formula A-NHR8, or alternatively by displacing one or both chlorine atoms in the heterocyclic moiety of a novel sulfonylurea of general formula
by the appropriate alkoxy groups. Further methods of preparation are also disclosed.
式中的磺酰胺衍生物
其中
R 是 H、卤素、硝基、CF3、烷基或烷氧基;
R 是 H、Cl 或烷基
R2 是 H 或 CH3:L 是 Cl、Br、CN、OH 或各种有机基团;
R8 是 H、CH3 或 OCH3;
W 是 O 或 S;
A 是
X 是 H、Cl、Br 或各种有机基团:
Y 是 CH3 或 OCH3
Z 是 N 或任选取代的 CH;
Y' 是 H、CH3、OCH3 或 OCH2CH3;以及
Q 是 0 或 CH2;
及其盐类具有除草和植物生长调节活性。它们可以按常规方法配制使用。
该化合物可通过通式如下的新型磺酰基异氰酸酯与适当的 2-氨基异氰酸酯反应制得
与适当的式 A-NHR8 的 2-氨基杂环反应,或用适当的烷氧基取代通式新型磺酰脲杂环分子中的一个或两个氯原子。
中的一个或两个氯原子置换出适当的烷氧基。还公开了进一步的制备方法。