申请人:E.I. DU PONT DE NEMOURS AND COMPANY
公开号:EP0015683A1
公开(公告)日:1980-09-17
Sulfonamides of the general formula
wherein R is optionally substituted phenyl or optionally substituted pyridyl;
R, is
R12 is selected from various organic groups;
X is H, CH3, CH30, Cl or OCH2CH3;
Y is CH2 or O; and
W is 0 or S; and their agriculturally suitable salts, exhibit herbicidal activity. The compounds can be formulated into herbicidal compositions in conventional manner. The compounds of formula I may made by reacting a corresponding sulfonyl thiocyanate or isothiocyanate of the formula RS02NCW with an appropriate aminopyrimidine derivative. The compound of formula II may be made by appropriate alkylation of an alkali metal or alkaline earth metal salt of a corresponding sulfonylthiourea.
通式如下的磺酰胺类化合物
其中 R 是任选取代的苯基或任选取代的吡啶基;
R,是
R12 选自各种有机基团
X 是 H、CH3、CH30、Cl 或 OCH2CH3;
Y 是 CH2 或 O;以及
W 是 0 或 S;以及它们在农业上适用的盐类,具有除草活性。这些化合物可按常规方法配制成除草组合物。式 I 的化合物可通过式 RS02NCW 的相应磺酰基硫氰酸盐或异硫氰酸盐与适当的氨基嘧啶衍生物反应制得。式 II 的化合物可通过相应磺酰硫脲的碱金属或碱土金属盐的适当烷基化制得。