申请人:E.I. DU PONT DE NEMOURS AND COMPANY
公开号:EP0051466A2
公开(公告)日:1982-05-12
Compounds of the formula
wherein
R1 is halogen, CF3, alkoxy, alkyl, NO2, carboxylic or sulfonate ester, sulfonamide or CH2L;
L is sulfonamide, alkoxy or ester;
R2 is H, halogen, CE3 or OCH3;
Ra is H or CH3;
R9 is H or alkyl:
R3 is
W is 0 or S;
Z is CH or N;
X, Y, X1, X2, X3, Y, are selected from various organic, halo or amino substituents, or X, may be H;
and their agriculturally suitable salts, exhibit herbicidal and plant growth regulant activity. The compounds may be formulated for use in conventional manner.
The compounds may be made by reacting a novel sulfonyl isocyanate of formula
with an appropriate aminoheterocycle R3NHR8, R1, R2, R3, Rs and R9 being as defined above.
Alternatively the appropriately substituted phenylmethane sulfonamide may be reacted with an isothiocyanate R3NCS.
式中的化合物
式中
R1 是卤素、CF3、烷氧基、烷基、NO2、羧酸酯或磺酸酯、磺酰胺或 CH2L;
L 是磺酰胺、烷氧基或酯;
R2 是 H、卤素、CE3 或 OCH3;
Ra 是 H 或 CH3;
R9 是 H 或烷基:
R3 是
W 是 0 或 S
Z 是 CH 或 N;
X、Y、X1、X2、X3、Y 选自各种有机、卤代或氨基取代基,或 X 可以是 H;
及其农业上适用的盐类具有除草和植物生长调节活性。这些化合物可按常规方式配制使用。
这些化合物可通过将新型磺酰基异氰酸酯式
与适当的氨基杂环 R3NHR8 反应,R1、R2、R3、Rs 和 R9 如上文所定义。
或者,适当取代的苯基甲烷磺酰胺可与异硫氰酸酯 R3NCS 反应。