申请人:Toms River Chemical Corporation
公开号:US04255342A1
公开(公告)日:1981-03-10
A method of synthesizing phenoxyanthraquinones in the absence of excess phenol, water-miscible alcohols or polar aprotic solvents. Phenoxyanthraquinones are synthesized in high yield and purity by treatment of the corresponding chloro- or nitroanthraquinone with an equivalent of alkali metal phenoxide, particularly potassium phenoxide in a liquid aromatic solvent which is a chloro-substituted benzene, a lower alkyl-substituted benzene, or a loweralkyl-chloro-substituted benzene. The use of the inventive solvents results in high yields of readily isolable, substantially pure product. The used solvent is readily recoverable without the pollution potential of excess phenol or difficultly recoverable water-miscible solvents.
在没有过量苯酚、水溶性醇或极性无水溶剂的情况下合成苯氧蒽醌的方法。通过用等量碱金属苯酚(尤其是钾苯酚)处理相应的氯代或硝基蒽醌,在液体芳香溶剂中(如氯代苯、较低烷基取代苯或较低烷基氯代苯)高产率和纯度地合成苯氧蒽醌。采用这些创新溶剂可获得易分离、基本纯净的产物高收率。所用溶剂可轻松回收,而不会产生过量苯酚或难以回收的水溶性溶剂的污染潜力。