申请人:IHARA CHEMICAL INDUSTRY CO., LTD.
公开号:EP0700903A1
公开(公告)日:1996-03-13
A process for producing a cyanopyridine represented by general formula (3) (wherein R represents hydrogen or halogen; X¹ and X² represent each hydrogen or halogen, provided at least one of them represents halogen; and n represents an integer of 1 or 2), characterized by reacting an ammonium halide with a trichloromethylpyridine represented by general formula (1) (wherein R, X¹, X² and n are each as defined above) in the presence of a metal compound represented by the general formula (2): MXm wherein M represents copper or zinc; X represents halogen or oxygen; and m represents an integer of 2 or 1.
一种生产通式(3)代表的氰基吡啶的工艺(其中R代表氢或卤素;X¹和X²各自代表氢或卤素,但至少其中一个代表卤素;n代表1或2的整数),其特征在于在通式(2)代表的金属化合物存在下,使卤化铵与通式(1)代表的三氯甲基吡啶反应(其中R、X¹、X²和n各自如上定义):MXm 其中 M 代表铜或锌;X 代表卤素或氧;m 代表 2 或 1 的整数。