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Journals / Trakya Üniversitesi Bilimsel Araştırmalar Dergisi B Serisi Fen Bilimleri / 2002 / Cilt: 3 - Sayı: 1

2,7-dihitroksinaftalin ile etil asetoasetatın Pechmann kondensazyon ürünlerinin incelenmesi

Investigation of Pechmann condensation products of ethyl acetoacetate with 2,7-dihydroxynaphthalene

HAKAN KOLANCILAR
Pages
7–10
DOI
—
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AI Summary & Key Takeaways

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

Increasing concentration of $H_2SO_4$ promotes the yield of benzochromone 3 is the most important observation.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Two benzocoumarins and a benzochromone were synthesized starting from 2,7-dihydroxynaphthalene (2,7-DHN) and ethyl acetoacetate (EAA) in the presence of sulphuric acid solutions as condensing agent.
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Key Findings & Data:The structures of the products have been elucidated by $^{1}H$ NMR, $^{13}C$ NMR, IR and Mass spectral methods.
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Conclusion & Impact:Increasing concentration of $H_2SO_4$ promotes the yield of benzochromone 3 is the most important observation.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Two benzocoumarins and a benzochromone were synthesized starting from 2,7-dihydroxynaphthalene (2,7-DHN) and ethyl acetoacetate (EAA) in the presence of sulphuric acid solutions as condensing agent. The structures of the products have been elucidated by $^{1}H$ NMR, $^{13}C$ NMR, IR and Mass spectral methods. Increasing concentration of $H_2SO_4$ promotes the yield of benzochromone 3 is the most important observation.

Özet

İki benzokumarin ve bir benzokromon, kondensazyon aracı olarak sülfürik asid çözeltisi varlığında 2,7-dihidroksinaftalin ve etil asetoasetat (EAA)' tan başlayarak sentezlendi. Bu bileşiklerin yapıları $^{1}H$ NMR, $^{13}C$ NMR, IR ve Kütle spektral metodlarla açıklandı. Artan$H_2SO_4$ konsantrasyonu en önemli gözlem olan benzokromonun 3 verimini arttırır.

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Cite This Article

KOLANCILAR, H. (2002). 2,7-dihitroksinaftalin ile etil asetoasetatın Pechmann kondensazyon ürünlerinin incelenmesi. Trakya Üniversitesi Bilimsel Araştırmalar Dergisi B Serisi Fen Bilimleri, Cilt: 3 - Sayı: 1, 7–10. https://ajindex.com/articles/368326

References (1)

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