Browsing by Author "Muhamadejev, Ruslan"

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    Intramolecular C-H⋯O hydrogen bonding in 1,4-dihydropyridine derivatives
    (2011-09) Petrova, Marina; Muhamadejev, Ruslan; Vigante, Brigita; Cekavicus, Brigita; Plotniece, Aiva; Duburs, Gunars; Liepinsh, Edvards
    The diastereotopy of the methylene protons at positions 2 and 6 in 1,4-dihydropiridine derivatives with various substituents has been investigated. NMR spectroscopy and quantum chemistry calculations show that the CH⋯O intramolecular hydrogen bond is one of the factors amplifying the chemical shift differences in the 1H-NMR spectra.