Ключевые слова: heterocyclic synthesis; lithium organic chemistry of (hetero)-aromatic compounds; mechanistic studies and applications in synthesis; H1, C13, O17-investigations; 2D-techniques; Molecular modeling and computer-aided NMR-methods for structure elucidation: off spectrometer-processing of NMR-data; simulation and iteration of spectra; use of spectral databases (SpecInfo; CSEARCH); application of semi-empiric and force-field calculations.