V. Ya. Sosnovskikh, B. I. Usachev, A. G. Blinov, M. I. Kodess, “New derivatives of dehydroacetic acid: synthesis of 2-polyfluoroalkyl-7-methylpyrano[4,3-<i>b</i>]pyran-4,5-diones”, Mendeleev Commun., 2001, Volume 11, Issue 1,Pages <nobr>36

This article is cited in 7 papers

New derivatives of dehydroacetic acid: synthesis of 2-polyfluoroalkyl-7-methylpyrano[4,3-b]pyran-4,5-diones

V. Ya. Sosnovskikh^a, B. I. Usachev^a, A. G. Blinov^a, M. I. Kodess^b

^a Department of Chemistry, Ural Federal University, Ekaterinburg, Russian Federation
^b I. Ya. Postovsky Institute of Organic Synthesis, Urals Branch of the Russian Academy of Sciences, Ekaterinburg, Russian Federation

Abstract: The condensation of dehydroacetic acid with R^FCO₂Et in the presence of LiH in THF afforded fluorine-containing 3-acetoacetyl- 4-hydroxy-6-methylpyrones, which underwent cyclization to 2-polyfluoroalkyl-7-methylpyrano[4,3-b]pyran-4,5-diones on treatment with concentrated sulfuric acid at room temperature.

Language: English

DOI: 10.1070/MC2001v011n01ABEH001354