Synthesis of 1-[4-(1,3-diaryl-4,5-dihydro-1<Emphasis Type="Italic">H</Emphasis>-pyrazol-5-yl)-2,3,5,6-tetrafluorophenyl]piperidin-4-ols and their acrylates |
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Authors: | E?A?Soboleva Email author" target="_blank">N?A?OrlovaEmail author V?V?Shelkovnikov |
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Institution: | 1.Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch,Russian Academy of Sciences,Novosibirsk,Russia;2.Novosibirsk State Technical University,Novosibirsk,Russia |
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Abstract: | (4-Hydroxypiperidin-1-yl)tetra- and -octafluorochalcones reacted with phenylhydrazine in acetic acid to give mixtures of polyfluoro-1,3,5-triaryl-4,5-dihydro-1H-pyrazoles and their O-acetyl derivatives. Analogous reactions in ethanol afforded in satisfactory yields 1-4-(1,3-diaryl-4,5-dihydro-1H-pyrazol-5-yl)-2,3,5,6-tetrafluorophenyl]piperidin-4-ols which were treated with acryloyl chloride to obtain the corresponding acrylates that are promising as monomers for the preparation of fluorescent films. |
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