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Molecules 2003, 8(3), 318-321; doi:10.3390/80300318
Article

Modified Methods for the Synthesis of Triazinyl Fluorescent Brightener Intermediates

1,* , 2, 1 and 1
1 Department of Chemistry, Faculty of Sciences, University of Kashan, 51167 Kashan, I. R. Iran 2 Department of Chemistry, Faculty of Sciences, University of Mazandaran, Babolsar, I. R. Iran
* Author to whom correspondence should be addressed.
Received: 18 August 2002 / Revised: 16 February 2003 / Accepted: 12 March 2003 / Published: 31 March 2003
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Abstract

The production of triazinyl fluorescent brightener intermediates in high yields is described. The method involves a simplified work-up for the preparation of 4-nitro-toluene-2-sulfonic acid and the use of diethylene glycol instead of water in the preparation of 4,4'-dinitrostilbene-2,2'-disulfonic acid.
Keywords: Triazinyl Fluorescent Brighteners; Sulfonation; Direct Separation Triazinyl Fluorescent Brighteners; Sulfonation; Direct Separation
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Safaei-Ghomi, J.; Tajbakhsh, M.; Bamoniri, A.; Parach, A. Modified Methods for the Synthesis of Triazinyl Fluorescent Brightener Intermediates. Molecules 2003, 8, 318-321.

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