Journals / Hacettepe Journal of Biology and Chemistry / 2022 / Cilt: 50 - Sayı: 2

Synthesis of New Pyrazole Derivatives via Diketonic Michael Adducts

Diketonik Michael Katılma Ürünlerinden Yeni Pirazol Bileşiklerinin Sentezi

Pages
157–162
Publication Date
2022-10-17
DOI
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AI Summary & Key Takeaways

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

Structures of all the addition and the cyclization products were clarified by using 1H NMR, 13C NMR and HRMS techniques.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Pyrazole ring containing heterocyclic molecules have been known to show biological activity.
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Key Findings & Data:Diketonic Michael adducts were prepared in low-good yields by the addition reactions of acetylacetone to nitrovinyl arene compounds in the presence of piperidine.
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Conclusion & Impact:Structures of all the addition and the cyclization products were clarified by using 1H NMR, 13C NMR and HRMS techniques.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Pyrazole ring containing heterocyclic molecules have been known to show biological activity. In this work, by realizing the cyclization reactions of diketonic Michael adducts, synthesis of new pyrazole compounds was accomplished. Diketonic Michael adducts were prepared in low-good yields by the addition reactions of acetylacetone to nitrovinyl arene compounds in the presence of piperidine. Pyrazole compounds were obtained in high yields via the cyclization reactions of these molecules. Structures of all the addition and the cyclization products were clarified by using 1H NMR, 13C NMR and HRMS techniques.

Özet

Pirazol halkası içeren heterohalkalı bileşiklerin biyolojik aktivite gösterdikleri bilinmektedir. Bu çalışmada, diketonik Michael katılma ürünlerinin halkalaşma tepkimeleri çalışılarak yeni pirazol bileşiklerinin sentezi gerçekleştirilmiştir. Nitrovinil aren bileşikleri ile asetilaseton bileşiğinin piperidin varlığındaki katılma tepkimelerinden diketonik Michael katılması ürünleri orta-iyi verimlerle sentezlenmiştir. Katılma ürünlerinin hidrazin hidrat ile olan halkalaşma tepkimeleri ile pirazol bileşikleri yüksek verimlerle sentezlenmiştir. Elde edilen katılma ve halkalaşma ürünlerinin yapıları 1H NMR, 13C NMR ve HRMS teknikleri kullanılarak aydınlatılmıştır.

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Cite This Article

ÇINAR, S., EREN, A. (2022). Synthesis of New Pyrazole Derivatives via Diketonic Michael Adducts. Hacettepe Journal of Biology and Chemistry, Cilt: 50 - Sayı: 2, 157–162. https://ajindex.com/articles/528913

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