申请人:SAGAMI CHEMICAL RESEARCH CENTER
公开号:EP0413832A1
公开(公告)日:1991-02-27
This invention relates to oxazolidinedione derivatives of general formula (1) and a method of producing the same, wherein R¹ represents a hydrogen atom or a lower alkyl group, and R² represents a hydrogen atom or a lower alkyl group as well. The above compounds serve as an intermediate for the production of benzoxazinone derivatives of general formula(II)selectively in good yields, wherein R¹ represents a hydrogen atom or a lower alkyl group, and R³ represents a hydrogen atom or an alkyl, cyanoalkyl, alkenyl, alkynyl or aralkyl group. Said benzoxazinone derivatives are well-known and useful as a herbicide.
本发明涉及一般式(1)的噁唑烷二酮衍生物及其制备方法,其中R¹代表氢原子或低碳基团,R²也代表氢原子或低碳基团。上述化合物作为生产苯并噁唑酮衍生物的中间体,选择性地产量良好,其中R¹代表氢原子或低碳基团,R³代表氢原子或烷基、氰基烷基、烯基、炔基或芳基烷基。所述苯并噁唑酮衍生物是众所周知的,并且作为除草剂非常有用。