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    N-phenyl-2,2,6,6-tetrahalocyclohexaneimine and processes for preparing 2,2,6,6-tetrahalocyclohexaneimine derivative and 2,6-dihaloaniline derivative
    1.
    发明授权
    N-phenyl-2,2,6,6-tetrahalocyclohexaneimine and processes for preparing 2,2,6,6-tetrahalocyclohexaneimine derivative and 2,6-dihaloaniline derivative 失效
    N-苯基-2,2,6,6-四卤代环己烷亚胺及其制备2,2,6,6-四卤代环己烷衍生物和2,6-二卤代苯胺衍生物的方法

    公开(公告)号：US5001264A

    公开(公告)日：1991-03-19

    申请号：US427390

    申请日：1989-10-27

    申请人： Takeaki Saeki ,  Hideo Ishikawa ,  Tunehei Oki

    发明人： Takeaki Saeki ,  Hideo Ishikawa ,  Tunehei Oki

    IPC分类号： C07C251/20

    CPC分类号： C07C251/20 ,  C07C2101/14

    摘要： A process for preparing a 2,2,6,6-tetrahalocyclohexaneimine derivative (I) which comprises reacting a 2,2,6,6-tetrahalocyclohexanone with a primary amine or ammonia in the presence of a Lewis acid, a process for preparing a 2,6-dihaloaniline derivative (II) which comprises subjecting the 2,2,6,6-tetrahalocyclohexaneimine derivative (I) to dehydrohalogenation in the presence or absence of a catalyst, and an N-phenyl-2,2,6,6-tetrahalocyclohexaneimine. According to the process of the present invention, the 2,2,6,6-tetrahalocyclohexaneimine derivative (I) can be prepared from inexpensive starting materials in high yield through a few steps. Also, the 2,6-dihaloaniline derivative (II) can be prepared from inexpensive starting materials in high yield and high purity through a few steps. Further, the N-phenyl-2,2,6,6-tetrahalocyclohexaneimine is very useful in the preparation of N-phenyl-2,6-dihaloaniline.

    N-phenyl-2,2,6,6-tetrahalocyclohexaneimine
    2.
    发明授权
    N-phenyl-2,2,6,6-tetrahalocyclohexaneimine 失效
    N-苯基-2,2,6,6-四卤代环己烷亚胺

    公开(公告)号：US4908479A

    公开(公告)日：1990-03-13

    申请号：US228134

    申请日：1988-08-03

    申请人： Takeaki Saeki ,  Hideo Ishikawa ,  Tunehei Oki

    发明人： Takeaki Saeki ,  Hideo Ishikawa ,  Tunehei Oki

    IPC分类号： C07C251/20

    CPC分类号： C07C251/20 ,  C07C2101/14

    摘要： A process for preparing a 2,2,6,6-tetrahalocyclohexanimine derivative (I) which comprises reacting a 2,2,6,6-tetrahalocyclohexanone with a primary amine or ammonia in the presence of a Lewis acid, a process for preparing a 2,6-dihaloaniline derivative (II) which comprises subjecting the 2,2,6,6-tetrahalocyclohexaneimine derivative (I) to dehydrohalogenation in the presence or absence of a catalyst, and an N-phenyl-2,2,6,6-tetrahalocyclohexaneimine. According to the process of the present invention, the 2,2,6,6-tetrahalocyclohexaneimine derivative (I) can be prepared from inexpensive starting materials in high yield through a few steps. Also, the 2,6-dihaloaniline derivative (II) can be prepared from inexpensive starting materials in high yield and high purity through a few steps. Further, the N-phenyl-2,2,6,6-tetrahalocyclohexaneimine is very useful in the preparation of N-phenyl-2,6-dihaloaniline.