Abstract
The stereochemistry of adducts of aryloxyfurans with maleic acid derivatives was studied by PMR spectroscopy. It was shown that adducts with maleic anhydride are produced only in the form of exo isomers, whereas adducts with N-phenyl-maleinimide are isolated from the reaction in the form of mixtures of endo and exo forms. Bromination of the adducts was realized. The orientation of the bromine atoms in the bromination products was established by PMR spectroscopy: The bromine atoms in the dibromo derivative of the adduct with maleic anhydride are cis-oriented (endo-4-Br, endo-5-Br), whereas the bromine atoms have a trans configuration (endo-4-Br, exo-5-Br) in the dibromo derivative of the adduct with N-phenylmaleinimide.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 613–615, May, 1984.
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Solov'eva, N.P., Sheinker, Y.N., Oleinik, A.F. et al. Investigation of the stereochemistry of adducts of aryloxyfurans with maleic acid derivatives by PMR spectroscopy. Chem Heterocycl Compd 20, 489–491 (1984). https://doi.org/10.1007/BF00514297
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DOI: https://doi.org/10.1007/BF00514297