Journal
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
Volume 62, Issue 9, Pages 756-760Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jccs.201500135
Keywords
Azo coumarin dyes; Diazotization; 7-Amino coumarins; Tungstate sulfuric acid
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Funding
- Yasouj University (Iran)
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A series of novel azo coumarin dyes were synthesized by the diazotization of 7-amino coumarins in the presence of catalytic amounts of tungstate sulfuric acid (TSA) followed by coupling with phenol derivatives. Tungstate sulfuric acid catalyzes this reaction at room temperature and short reaction time with high yields.
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