Abstract
The condensation of two molecules of ethyl pentafluorobenzoylacetate gives 1-oxo-3-penta fluorophenyl-1H-pyrano[4,3-b]6,7,8,9-tetrafluorochromone.
References
N. K. Kochetkov (ed.),General Organic Chemistry [in Russian], Vol. 9, Khimiya, Moscow (1985).
L. S. German, S. R. Sterlin, and V. F. Cherstkov,Izv. Akad. Nauk SSSR, Ser. Khim., No. 7, 1657 (1982).
Additional information
Department of Fine Organic Synthesis, Institute of Organic Chemistry, Urals Branch, Russian Academy of Sciences, 620219 Ekaterinburg. Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 9, pp. 2186–2188, September, 1992.
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Saloutin, V.I., Bazyl', I.T., Skryabina, Z.É. et al. A new approach to the synthesis of fluorinated chromones. Russ Chem Bull 41, 1714–1715 (1992). https://doi.org/10.1007/BF00863600
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DOI: https://doi.org/10.1007/BF00863600