| 摘要 |
1,241,601. Anthraquinone compounds. IMPERIAL CHEMICAL INDUSTRIES Ltd. 27 Feb., 1969 [25 March, 1968], No. 14271/68. Heading C2C. The invention comprises compounds of the formula where Y is Cl or Br and the anthraquinone nucleus may contain further substituents. The compounds are prepared by reacting the corresponding hydroxymethyl compounds with a chlorinating or brominating agent, e.g. thionyl chloride or bromide or hydrogen chloride or bromide. |
