A Study on Temporarily Water-Soluble Disperse Dyes Containing Carboxymethylsulfonyl Group──The Synthesis or Intermediates and Dyes

Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (4): 574.

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A Study on Temporarily Water-Soluble Disperse Dyes Containing Carboxymethylsulfonyl Group──The Synthesis or Intermediates and Dyes

PAN Xin¹, WANG Mei²

1. Department of Fine Chemical Engineering, Dalian University of Technology, Dalian, 116012;
2. Dalian Institute of Synthesis Fibre, Dalian

Received:1993-06-01 Revised:1993-09-11 Online:1994-04-24 Published:1994-04-24

Abstract

Abstract: Four new intermediates containing carboxymethylsulfonyl group were synthesized by the methods via chlorosulfonation of acetanilides or oxydation of thioethers.Intermediate (1) was synthesized by oxidation of thioether.Intermediates 3 and 4 were synthesized by chlorosulfonation of acetanilides.Intermediate 2 can be prepared by either methods.Intermediates 1 to 4 and other intermediate compounds were analyzed by IRand elementary analysis.Four new and other six temporarily water-soluble azo dyes containing carboxymethylsulfonyl group in diazo component were prepared.Their absorption specra were obtained.

Key words: Disperse dye, Temporarily water-solubility, Carboxymethylsulfonyl group, Synthesis

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PAN Xin, WANG Mei. A Study on Temporarily Water-Soluble Disperse Dyes Containing Carboxymethylsulfonyl Group──The Synthesis or Intermediates and Dyes[J]. Chem. J. Chinese Universities, 1994, 15(4): 574.

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A Study on Temporarily Water-Soluble Disperse Dyes Containing Carboxymethylsulfonyl Group──The Synthesis or Intermediates and Dyes

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