dimethylbenzoyl) benzoic acid separately carries on dehydration with gathers the phosphoric acid,the strong sulfuric acid,the fuming sulfuric acid and so on to synthesize 1,4-dimethyl anthraquinones.

• 二甲基甲酰)苯甲酸分别与多聚磷酸、浓硫酸、发烟硫酸等进行环化反应合成1,4-二甲基蒽醌。