Acyclic and alicyclic N-substituted halo-2-pyrrolidinones having the formula ##STR1## in which Q is oxygen or sulfur; R is lower alkyl, haloalkyl, alkenyl, cycloalkyl, cycloalkylalkyl, benzyl and chlorobenzyl; X is hydrogen or chlorine, Y is chlorine or bromine and Z is chlorine or bromine, provided that when R is allyl, Y and Z are each chlorine or bromine, and provided that when R is cyclohexyl, X is other than chlorine. The compounds of this invention are prepared by a novel process and are useful as herbicides.
本发明涉及具有以下式子的无环和脂环N-取代卤代
2-吡咯烷酮:##STR1## 其中Q为氧或
硫;R为低级烷基,卤代烷基,烯丙基,环烷基,环烷基烷基,苯甲基和
氯苯甲基;X为氢或
氯,Y为
氯或
溴,Z为
氯或
溴,但当R为烯丙基时,Y和Z均为
氯或
溴,且当R为环己基时,X不为
氯。本发明的化合物通过一种新的方法制备,并可用作
除草剂。