Herbicides derived from 2-cyano-1,3-diones have the formula:
in which R, R1, R2, R3, R4 and R5 are as defined in the description. The compounds are intended for use against dicotyledonous and monocotyledonous weeds by pre- and/or post emergence application.
                            由 2-
氰基-1,3-二酮衍生的
除草剂的
化学式为
其中 R、R1、R2、R3、R4 和 R5 如说明中所定义。这些化合物可通过出苗前和/或出苗后施用,用于防治双子叶和单子叶杂草。