Abstract
Isomerization of the acetates and benzoates of condensed hydroxy-substituted 2-trifluoromethyl-4H-pyran-4-ones at 300–320°C gave the corresponding derivatives of spiroannelated 3(2H)-furanones. Their structure was confirmed by spectral data and by X-ray crystallographic analysis.
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Additional information
Belarus State University, Minsk; Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1028–1034, August, 2000.
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Bobrov, D.N., Lyakhov, A.S., Govorova, A.A. et al. Thermal rearrangement of condensed alkoxy-substituted 2-trifluoromethyl-4H-pyran-4-ones to spiroannelated 3(2H)-furanones. Chem Heterocycl Compd 36, 899–904 (2000). https://doi.org/10.1007/BF02256973
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DOI: https://doi.org/10.1007/BF02256973