申请人:Fisons Limited
公开号:US04183741A1
公开(公告)日:1980-01-15
There are provided the compounds of the formula: ##STR1## (wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4, which may be the same or different, each represent hydrogen, a substituted or unsubstituted alkyl, aryl or aralkyl group, a nitro group, a cyano group or a halogen atom, R.sup.5 represents a quaternized nitrogen-containing heterocyclyl radical linked via a ring carbon atom, X represents one equivalent of an anion, R.sup.7 represents a substituted or unsubstituted alkyl group or a substituted or unsubstituted, saturated or unsaturated heterocyclyl group which, if nitrogen-containing, is quaternized, linked via a ring carbon atom, and R.sup.6 either represents an alkyl group or, when R.sup.7 represents a quaternized nitrogen-containing heterocyclyl group, and the quaternized nitrogen atom is ortho to the linked ring carbon atom, may represent a methylene, dimethylene, trimethylene or alkyl-substituted ethenylene chain to that nitrogen atom. The compounds are selective herbicides.
提供了以下化合物:##STR1##(其中R.sup.1,R.sup.2,R.sup.3和R.sup.4,可以相同或不同,分别表示氢,取代或未取代的烷基,芳基或芳基烷基,硝基,氰基或卤素原子,R.sup.5表示通过一个环碳原子连接的季铵化氮杂环基团,X表示一个阴离子当量,R.sup.7表示一个取代或未取代的烷基或取代或未取代的饱和或不饱和杂环基团,如果含氮,则是季铵化的,通过一个环碳原子连接,而R.sup.6则表示一个烷基或当R.sup.7表示一个季铵化氮杂环基团,并且季铵化的氮原子位于连接的环碳原子的正交位置时,可以表示一个甲基,二甲基,三甲基或烷基取代的乙烯基链到该氮原子。这些化合物是选择性除草剂。