Novel azolidine derivatives of the formula (I) wherein R1 represents halogen, alkyl, alkoxy, haloalkyl, haloalkoxy, haloalkylthio or haloalkylene-dioxy, m represents 0, 1, 2, 3, 4 or 5, the R1 substituents are identical or different each other, when m represents 2, 3, 4 or 5, R2 represents alkyl, X represents alkylidene, oxygen atom or sulfur atom, and A represents one of the groups described in the specification and their use as herbicides.
(I)式的新型
氮杂环丙烷衍
生物,其中R1代表卤素、烷基、烷氧基、卤代烷基、卤代烷氧基、卤代烷
硫基或卤代烷二氧基,m代表0、1、2、3、4或5,R1取代基彼此相同或不同,当m代表2、3、4或5时,R2代表烷基,X代表烷基烯、氧原子或
硫原子,A代表规范中描述的一种基团,以及它们作为
除草剂的用途。