专利检索 ap:("Masashi Kamitamari" OR "Takashi Kamikawa" OR "Osamu Maruyama" OR "Shinzaburo Masaki" OR "Junji Shiraiwa") AND inv:"Junji Shiraiwa" 第 1 页

1.

发明授权
Process for production of N-substituted carbazoles 失效
标题翻译： N-取代咔唑的制备方法

公开(公告)号：US5254700A

公开(公告)日：1993-10-19

申请号：US20117

申请日：1993-02-19

申请人： Masashi Kamitamari , Takashi Kamikawa , Osamu Maruyama , Shinzaburo Masaki , Junji Shiraiwa

发明人： Masashi Kamitamari , Takashi Kamikawa , Osamu Maruyama , Shinzaburo Masaki , Junji Shiraiwa

IPC分类号： C07D209/86 , C07D209/88

CPC分类号： C07D209/86 , C07D209/88

摘要： There is disclosed a process for the production of N-substituted carbazoles with high efficiency, in which a carbazole compound is reacted with an appropriate halogenated compound in an inert solvent in the presence of an acid-removing agent and an amine without using any quaternary ammonium salt which is required in the conventional process.