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Microwave‐Assisted Direct Amidation of Ethyl 1‐Phenyl‐5‐hydroxy‐1H‐pyrazole‐4‐carboxylate |
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| Authors: | Mladena Milo?evi? Ines ?terbal Urban Fegu? Jernej Ba?kov? Benjamin Prek Uro? Gro?elj Branko Stanovnik Jurij Svete |
| Institution: | 1. Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia;2. Centre of Excellence EN‐FIST, Ljubljana, Slovenia |
| Abstract: | Microwave‐assisted treatment of ethyl 5‐hydroxy‐1‐phenyl‐1H‐pyrazole‐4‐carboxylate with excess primary aliphatic amines in 1‐propanol at 140°C and with excess pyrrolidine or piperidine in 2‐methoxyethanol at 180°C produced the corresponding carboxamides in good yields. |
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