Research on multiphase synthesis of 1,5-di(o-anisidino) anthraquinone |
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Authors: | Liang He Shufen Zhang Jinzong Yang Liqui Yu |
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Institution: | (1) State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116012, China |
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Abstract: | According to the Ullman reaction mechanism, the synthesis of 1,5-di(o-anisidino)anthraquinone was achieved by the multiphase reaction of 1,5-dichloroanthraquinone in xylene and o-anisidine in the presence of copper metal powder and potassium acetate. The effects of various factors on the reaction, such
as the dosages of xylene and catalyst, molar ratios of raw materials, and reaction times were investigated. When the molar
ratio of 1,5-dichloroanthraquinone to o-anisidine and potassium acetate is 1:10:2.5 and the catalyst dosage based on 1,5-dichloroanthraquinone is 5.3%, the conversion
of 1,5-dichloroanthraquinone is 97.8% and the yield of 1,5-di(o-anisidino)anthraquinone is 80.6% after reflux for 10 h. Under these conditions, the recovery of the solvent is 86.0%. The
target compound was identified by MS, 1H NMR, IR and DSC.
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Translated from Journal of Dalian University of Technology, 2007, 47(2): 170–174 译自: 大连理工大学学报] |
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Keywords: | 1 5-dichloroanthraquinone 1 5-di(o-anisidino)anthraquinone multiphase reaction HPLC |
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