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.
一种在无过量
苯酚、亲
水性醇或极性无
水溶剂的情况下合成苯氧
蒽醌的方法。将相应的
氯代或硝基
蒽醌与等量的碱
金属
苯酚酸盐(尤其是
钾苯酚酸盐)在液体芳香溶剂中处理,所述液体芳香溶剂为
氯代苯、较低烷基取代苯或较低烷基
氯代苯。使用本发明的溶剂可获得高收率的易分离、基本纯净的产物。所用的溶剂易于回收,无过量
苯酚或难以回收的亲
水性溶剂的污染潜力。