申请人:Nissan Chemical Industries, Ltd.
公开号:US05900483A1
公开(公告)日:1999-05-04
A process for the separation of phenyluracil compounds is provided. The process according to the present invention comprises treating with a weakly-basic substance a mixture of a halogenophenyluracil compound (I) and a cyanophenyluracil compound (II): ##STR1## wherein X is a hydrogen or fluorine atom, Y is a chlorine or bromine atom, and R is an alkyl group containing 1 to 3 carbon atoms, to separate the compounds (I) and (II).
提供了一种用于分离苯基尿嘧啶化合物的方法。根据本发明的方法包括用弱碱性物质处理卤代苯基尿嘧啶化合物(I)和氰基苯基尿嘧啶化合物(II)的混合物:##STR1## 其中X是氢或氟原子,Y是氯或溴原子,R是含有1至3个碳原子的烷基基团,以分离化合物(I)和(II)。