申请人:Ciba-Geigy Corporation
公开号:US04686294A1
公开(公告)日:1987-08-11
Compounds of the formula ##STR1## are described in which R.sub.1 represents a perfluoroalkyl radical of from 1 to 2 carbon atoms, and at least one of R.sub.2 and R.sub.3 represents hydrogen, and the other, or both represent lower alkyl, and R.sub.4 represents a lower alkyl radical which may be unsubstituted or bear certain substitution, and which are useful as herbicides in a method for controlling weeds and wild grasses. Compositions containing such compounds are also described. Finally, novel fluoro-thio semicarbazides are described which are useful intermediates in the production of the compounds of Formula I.
公式##STR1##描述了其中R.sub.1代表1至2个碳原子的全氟烷基基团,至少一个R.sub.2和R.sub.3代表氢,另一个或两者代表较低的烷基,R.sub.4代表一个较低的烷基基团,可以是未取代的或带有某些取代基,这些化合物可用作除草剂,用于控制杂草和野草的方法。还描述了含有这些化合物的组合物。最后,描述了有用的新型氟硫代半胱氨酸衍生物,可用作制备公式I化合物的中间体。