Summary
1. Structures have been proposed for α- and β-reolones (Ia and Ib), two spatial isomers isolated by us previously, as 3,4-dimethyl-2-(4′-O-methyl-1′-β-resorcyloyl)-8-oxononan-1,4-olides with the trans-diaxial position of the methine protons in the lactone ring, and with the equatorial orientation of the open chain at C4 in α-reolone and the axial orientation in β-reolone.
2. The possibility has been found of converting α-reolone in an acid medium into a 7′-methoxy-4′-oxodihydrocoumarin derivative at the 3′-carbon atom.
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Literature cited
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Additional information
V. L. Komarov Botanical Institute, Academy of Sciences of the USSR, Leningrad. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 30–38, January–February, 1977.
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Bukreeva, T.V., Kir'yalov, N.P. & Gindin, V.A. The structure of the lactones α- and β-reolones. Chem Nat Compd 13, 25–32 (1977). https://doi.org/10.1007/BF00566164
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DOI: https://doi.org/10.1007/BF00566164