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Synthesis, Properties, and Reactions of 5-Substituted Derivatives of 2,3-Diphenylquinoxaline [1]

✍ Scribed by Jozef Saloň; Viktor Milata; Miloslav Chudík; Nadežda Prónayová; Ján Leško; Milan Seman; Anna Belicová

Book ID
106213282
Publisher
Springer Vienna
Year
2003
Tongue
English
Weight
315 KB
Volume
135
Category
Article
ISSN
0026-9247

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Synthesis of 2,3,5-substituted pyrrole d
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✍ Paula M.T. Ferreira; Hernâni L.S. Maia; Luı́s S. Monteiro 📂 Article 📅 2002 🏛 Elsevier Science 🌐 French ⚖ 147 KB

Substituted pyrrole derivatives are prepared by treatment of 2,3-dihydrofuran derivatives with trifluoroacetic acid. These in turn are obtained by Michael addition of carbon nucleophiles of the b-dicarbonyl type to N-(4-toluenesulfonyl)-N-(tertbutyloxycarbonyl)-dehydroalanine methyl ester.