4-Fluoro-5-oxypyrazole derivative having the formula
wherein R1 represents hydrogen atom or a lower alkyl group: and R2 represents a lower alkyl or phenyl group or a phenyl group having one or more substituent of fluorine or chlorine atom or a lower alkyl or dimethylamino group as effective intermediates for agricultural and pharmaceutical chemicals.
4-
氟-5-氧
吡唑衍
生物,其式如下
其中 R1 代表氢原子或低级烷基:R2 代表低级烷基或苯基或具有一个或多个
氟或
氯原子取代基或低 级烷基或二甲基
氨基的苯基,可作为农用和医药
化学品的有效中间体。