Pyranopyrazoles III synthesis of 1H-pyra
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Misbahul Ain Khan; Gwynn Pennant Ellis; Mario Celso Pagotto
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Article
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2001
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Journal of Heterocyclic Chemistry
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English
⚖ 52 KB
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## Abstract Various derivatives of title ring system were synthesized by Claisen condensation of 4 acetyl‐5 ‐hydroxy‐pyrazoles with appropriate esters, followed by acid‐catalyzed ring closure.