申请人:Sumitomo Seika Chemicals Co., Ltd.
公开号:US05856504A1
公开(公告)日:1999-01-05
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.
一种制备1,2-苯并异噻唑的方法,其特征在于将2-(烷基硫代)苯甲醛肟与卤素化合物处理;一种制备3-卤代-1,2-苯并异噻唑的方法,其特征在于将1,2-苯并异噻唑与卤化剂处理;以及一种制备1-(1,2-苯并异噻唑-3-基)哌嗪的方法,其特征在于将所得3-卤代-1,2-苯并异噻唑与哌嗪反应。通过本发明的方法,可以在比传统方法更短且更简单的过程中,不使用昂贵的起始材料,高产率地获得用作药物组分(如精神药物)的中间体1,2-苯并异噻唑和3-卤代-1,2-苯并异噻唑,以及从中合成的1-(1,2-苯并异噻唑-3-基)哌嗪。