Deprotonation of pyrazole and its analogs by aqueous copper acetate in the presence of triethylamine |
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| Authors: | M A Yakovleva E V Kushan N S Boltacheva V I Filyakova S E Nefedov |
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| Institution: | 1.Kurnakov Institute of General and Inorganic Chemistry,Russian Academy of Sciences,Moscow,Russia;2.Postovsky Institute of Organic Synthesis, Ural Branch,Russian Academy of Sciences,Yekaterinburg,Russia |
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| Abstract: | Deprotonation reactions of pyrazole and its analogs by aqueous copper acetate in benzene at room temperature in the presence
of triethylamine were studied. Unlike 3,5-dimethylpyrazole, more acidic pyrazole, 5-methyl-3-trifluoromethylpyrazole, and
3,5-bis(trifluoromethyl)pyrazoles are deprotonated to give pyrazolate bridges. The structural features of the obtained compounds
are discussed based on X-ray diffraction data. |
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