A convenient synthesis of furo[3,2-c]pyran-3-carboxylates from 3-bromo-3-nitroacrylates |
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| Institution: | 1. Herzen State Pedagogical University of Russia, 191186 St. Petersburg, Russian Federation;2. Department of Chemistry, M. V. Lomonosov Moscow State University, 119991 Moscow, Russian Federation;3. Kuban State University, 350040 Krasnodar, Russian Federation;4. North-Caucasus Federal University, 355009 Stavropol, Russian Federation |
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| Abstract: | Novel 4-oxo-4H-furo3,2-c]pyran-3-carboxylates and 4-oxo- 4H-furo3,2-c]chromene-3-carboxylates were prepared from available alkyl 3-bromo-3-nitroacrylates and 4-hydroxy-6- methyl-2H-pyran-2-one or 4-hydroxycoumarin, respectively. Their structures were confirmed by NMR and X-ray data. |
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| Keywords: | nitroacrylates 1-halo-1-nitroethenes heterocyclization |
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