Chinese Journal of Applied Chemistry ›› 1998, Vol. 0 ›› Issue (1): 25-28.

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Synthesis and Decarboxylation of Anthraquinone Dyes and Intermediates Containing Carboxymethylsulfonyl Group

Kuang Chunxiang1, Yang Qing1, Zhao Yuqing1, Fan Shengdi1, Pan Xin2   

  1. 1. Department of Chemical Engineering, Dalian Nationality College, Dalian 116600;
    2. Department of Fine Chemical Engineering, Dalian University of Science and Technology, Dalian
  • Received:1997-06-28 Revised:1997-10-06 Published:1998-02-10 Online:1998-02-10

Abstract: Three anthraquinone dyes containing carboxymethylsulfonyl group and relative in-termediates were synthesized.Thermogravimetry was applied to determine the decarboxyla-tion temperatures of the dyes and intermediates.The results show that decarboxylation tem-peratures decreased when carboxymethylsulfonyl groups connected indirectly with benzenering.

Key words: carboxymethylsulfonyl group, anthraquinone dye, intermediates, synthesis, decarboxylation