Abstract
The 1H and 13C NMR spectra of a number of 5-substituted 2-trichloromethyl-4-methylene-1,3-dioxolanes were studied. It was observed that the exocyclic double bond is in effective conjugation with the 3–0 ring atom. The configuration of the substituents was established, and a conformational model of these heterocycles of the “envelope” type with the 1–0 atom deviating from the plane in which the remaining ring atoms are situated is proposed. The applicability of the 13C NMR spectra for the determination of the configuration of the compounds is demonstrated.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1176–1180, September, 1976.
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Kalabin, G.A., Sigalov, M.V., Kushnarev, D.F. et al. 1 H and 13 C NMR spectra and structure of 2-trichloromethyl-4-methylene-1,3-dioxolanes. Chem Heterocycl Compd 12, 973–976 (1976). https://doi.org/10.1007/BF00480384
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DOI: https://doi.org/10.1007/BF00480384