You Meng-yun
2011
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Dyestuffs and coloration
Abstract
1,5-Di(3-hydroxypropoxy)anthraquinone was synthesized from 1,5-dichloroanthraquinone and 1,3-propanediol with solvent DMSO and catalyst KOH.The molar ratio,reaction temperature and reaction time were investigated by orthogonal experiments.The optimum conditions:n(1,5-dichloroanthraquinone)∶ n(1,3-propanediol)=1∶ 10,reaction temperature 100 ℃,reaction time 15 hours;the quality percent of target product was 71.0%.The crude product was purified by column chromatography,purity w(1,5-di(3-hydroxy propoxy)anthraquinone)was 99.1%,and the melting point of product was 170.4~171.3 ℃.The target product was characterized by HPLC-MS,1H-NMR,IR,UV-vis and TG.