申请人:SUMITOMO SEIKA CHEMICALS CO., LTD.
公开号:EP0805151A1
公开(公告)日:1997-11-05
A method for producing a 1,2-benzisothiazole characterized by treating a 2-(alkylthio)benzaldehyde oxime with a halogen compound; a method for producing a 3-halo-1,2-benzisothiazole characterized by treating a 1,2-benzisothiazole with a halogenating agent; and a method for producing a 1-(1,2-benzisothiazol-3-yl)piperazine characterized by reacting the obtained 3-halo-1,2-benzisothiazoles with a piperazine. By the method of the present invention, 1,2-benzisothiazoles and 3-halo-1,2-benzisothiazoles, which are useful as intermediates for pharmaceutical compositions such as psychotropic agents, and 1-(1,2-benzisothiazole-3-yl)piperazines synthesized therefrom can be obtained in a high yield without using expensive starting materials by shorter and simpler process than conventional methods.
一种生产1,2-苯并异噻唑的方法,其特征在于用卤素化合物处理2-(烷硫基)苯甲醛肟;一种生产3-卤代-1,2-苯并异噻唑的方法,其特征在于用卤化剂处理1,2-苯并异噻唑;以及一种生产1-(1,2-苯并异噻唑-3-基)哌嗪的方法,其特征在于使得到的3-卤代-1,2-苯并异噻唑与哌嗪反应。通过本发明的方法,可以不使用昂贵的起始原料,通过比传统方法更短和更简单的过程,高产率地获得1,2-苯并异噻唑和3-卤代-1,2-苯并异噻唑,以及由其合成的1-(1,2-苯并异噻唑-3-基)哌嗪。