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E-Journal of Chemistry
Volume 5, S1, Pages 1037-1047

Synthesis of Calix[4]resorcinarene Based Dyes and its Application in Dyeing of Fibres

Vinod K. Jain,1 Shibu G. Pillai,2 and Parin H. Kanaiya1

1Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
2Chemical Engineering Department, Institute of Technology, Nirma University of Science and Technology, Ahmedabad, India

Received 24 April 2008; Accepted 20 June 2008

Copyright © 2008 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Four new ʻupper rimʼ azocalix[4]resorcinarene have been synthesized by coupling calix[4]resorcinarene with different diazotized aromatic compounds of sulphanilic acid, anthranilic acid, o-aminophenol and p-aminobenzoic acid. The prepared compounds were characterized based on m.p., elemental analysis, FT-IR, 1H-NMR. These dyes have been used for the dyeing of textile fibres like cotton and wool. Their fastness properties such as fastness to sunlight, water, washings, and perspiration have also been studied. The synthesized dyes have been employed for computerized colour strength determination through colour matching with known standards. Their L, A*, B* values as well as the colour difference values such as ∆L, ∆A*, ∆B*, ∆C and ∆H have also been reported.