ORGN 563 |
| Synthesis of 2-(aryl)-azo-4-chloro-8H-chromeno[8,7-d][1,3]thiazole-8-one derivatives was achieved by diazotization of 2-amino-4-chloro-8H-chromeno[8,7-d][1,3]thiazole-8-one using nitrosyl sulfuric acid followed by coupling with various phenols, which resulted in hetero-fused thiazole azo dyes. The key intermediate, 2-amino-4-chloro-8H-chromeno[8,7-d][1,3]thiazole-8-one, used as the diazonium component was synthesized from salicylaldehyde. The spectral properties of these dyes were studied. The dyes showed good coloration and fastness properties. |
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New Reactions and Methodology, Heterocycles and Aromatics, Bioorganic Chemistry
8:00 PM-10:00 PM, Tuesday, 12 September 2006 Moscone Center -- Hall D, Poster
Division of Organic Chemistry |