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Method for producing bis(3-amino-4-hydroxyphenyl) compounds
申请人:Nippon Kayaku Kabushiki Kaisha
公开号:EP0895985A2
公开(公告)日:1999-02-10
Disclosed is a method for producing bis(3-amino-4-hydroxyphenyl) compounds, which comprises reducing bis(3-nitro-4-hydroxyphenyl) compounds with hydrazines in the presence of a catalyst. The method produces bis(3-amino-4-hydroxyphenyl) compounds of high quality under mild conditions at high yields. The products can be isolated and purified in a simple manner to have a higher purity. The method is suitable to industrial-scale production of the products.
本发明公开了一种生产双(3-氨基-4-羟基苯基)化合物的方法,该方法包括在催化剂存在下用肼还原双(3-硝基-4-羟基苯基)化合物。该方法能在温和的条件下以高产率生产出高质量的双(3-氨基-4-羟基苯基)化合物。产品可以通过简单的方法分离和提纯,从而获得更高的纯度。该方法适用于工业规模的产品生产。
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