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Journals / Turkish Journal of Chemistry / 2015 / Cilt: 39 - Sayı: 2

Ring opening and ring closure reactions of chromone-3-carboxylic acid: unexpected routes to synthesize functionalized benzoxocinones and heteroannulated pyranochromenes

Magdy Ahmed IBRAHIM
Tarik El-sayed ALI
Pages
412
Publication Date
2015-08-13
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Structures of the new synthesized products were established on the basis of elemental analysis and spectral data (IR, MS, and ^1H and ^{13}C NMR).

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Unexpected routes to synthesize functionalized benzoxocinones and heteroannulated pyranochromenes were achieved via transformations of the \gamma-pyrone ring in chromone-3-carboxylic acid throughout its reactions with some acyclic and cyclic carbon nucleophiles.
📊
Key Findings & Data:A key part of the reaction mechanisms is discussed.
💡
Conclusion & Impact:Structures of the new synthesized products were established on the basis of elemental analysis and spectral data (IR, MS, and ^1H and ^{13}C NMR).
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Chromone-3-carboxylic acid · benzoxocinone · pyranochromenes

Abstract

Unexpected routes to synthesize functionalized benzoxocinones and heteroannulated pyranochromenes were achieved via transformations of the \gamma-pyrone ring in chromone-3-carboxylic acid throughout its reactions with some acyclic and cyclic carbon nucleophiles. A key part of the reaction mechanisms is discussed. Structures of the new synthesized products were established on the basis of elemental analysis and spectral data (IR, MS, and ^1H and ^{13}C NMR).

Özet

Unexpected routes to synthesize functionalized benzoxocinones and heteroannulated pyranochromenes were achieved via transformations of the \gamma-pyrone ring in chromone-3-carboxylic acid throughout its reactions with some acyclic and cyclic carbon nucleophiles. A key part of the reaction mechanisms is discussed. Structures of the new synthesized products were established on the basis of elemental analysis and spectral data (IR, MS, and ^1H and ^{13}C NMR).

🔖

Cite This Article

IBRAHIM, M. A., ALI, T. E. (2015). Ring opening and ring closure reactions of chromone-3-carboxylic acid: unexpected routes to synthesize functionalized benzoxocinones and heteroannulated pyranochromenes. Turkish Journal of Chemistry, Cilt: 39 - Sayı: 2, 412. https://ajindex.com/articles/185154

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