申请人:Ciba-Geigy Corporation
公开号:US04016173A1
公开(公告)日:1977-04-05
Oxindole diamines are prepared by a process comprising reacting an isatin derivative with an anilide and a Friedel Crafts catalyst in an inert solvent at a temperature of from 50.degree. to 150.degree. C with subsequent hydrolysis of the reaction product to yield the oxindole diamine. These compounds are useful in preparing polyimide type polymers.
氧喹二胺是通过以下过程制备的:在惰性溶剂中,将吲哚酮衍生物与苯胺基和弗里德尔-克拉夫茨催化剂反应,在50至150摄氏度的温度下进行,随后水解反应产物以得到氧喹二胺。这些化合物在制备聚酰亚胺型聚合物中很有用。