@article{LazarevaShainyanKleinpeter2010,
  author    = {Lazareva, Nataliya F. and Shainyan, Bagrat A. and Kleinpeter, Erich},
  title     = {4-Alkyl-2,2,6,6-tetramethyl-1,4,2,6-oxaazadisilinanes : synthesis, structure, and conformational analysis},
  issn      = {0894-3230},
  doi       = {10.1002/Poc.1605},
  year      = {2010},
  abstract  = {4-Alkyl-2,2,6,6-tetramethyl-1,4,2,6-oxaazadisilinanes RN[CH2Si(Me)2]2O [R = Me (1), i-Pr (2)] were synthesized by two methods which provided good yields up to 84\%. Low temperature NMR study of compounds (1) and (2) revealed a frozen ring inversion with the energy barriers of 8.5 and 7.7 kcal/mol at 163 and 143 K, respectively, which is substantially lower than that for their carbon analog, N-methylmorpholine. DFT calculations performed on the example of molecule (1) showed that N-Meax conformer to exist in the sofa conformation with the coplanar fragment C-Si-O-Si-C, and its N-Meeq conformer in a flattened chair conformation.},
  language  = {en}
}
@article{LazarevaAlbanovShainyanetal.2012,
  author    = {Lazareva, Nataliya F. and Albanov, Alexander I. and Shainyan, Bagrat A. and Kleinpeter, Erich},
  title     = {Synthesis and conformational properties of substituted 1,4,2-oxazasilinanes: low temperature NMR study and quantum chemical calculations},
  doi       = {10.1016/j.tet.2011.11.077},
  year      = {2012},
  language  = {en}
}
@article{KleinpeterLazarevaShainyanetal.2012,
  author    = {Kleinpeter, Erich and Lazareva, Nataliya F. and Shainyan, Bagrat A. and Schilde, Uwe and Chipania, Nina N.},
  title     = {Synthesis, Molecular Structure, Conformational Analysis, and Chemical Properties of Silicon-Containing Derivatives of Quinolizidine},
  issn      = {0022-3263},
  year      = {2012},
  language  = {en}
}
@article{LazarevaShainyanSchildeetal.2012,
  author    = {Lazareva, Nataliya F. and Shainyan, Bagrat A. and Schilde, Uwe and Chipanina, Nina N. and Oznobikhina, Larisa P. and Albanov, Alexander I. and Kleinpeter, Erich},
  title     = {Synthesis, molecular structure, conformational analysis, and chemical properties of silicon-containing derivatives of quinolizidine},
  series = {The journal of organic chemistry},
  volume    = {77},
  journal   = {The journal of organic chemistry},
  number    = {5},
  publisher = {American Chemical Society},
  address   = {Washington},
  issn      = {0022-3263},
  doi       = {10.1021/jo202658n},
  pages     = {2382 -- 2388},
  year      = {2012},
  abstract  = {A silicon analog of quinolizidine 3,3,7,7-tetramethylhexahydro-1H-[1,4,2]oxazasilino[4,5-d][1,4,2]oxazasilin-9a-yl)methanol 3 was synthesized. X-ray diffraction analysis confirmed the trans configuration and low temperature NMR spectroscopy both the flexibility (barrier of interconversion 5.8 kcal mol(-1)) and the conformational equilibrium (chair-chair and chair-twist conformers) of the compound. The relative stability of the different isomers/conformers of 3 was calculated also at the MP2/6-311G(d,p) level of theory. Intra- and intermolecular hydrogen bonding in 3 and the appropriate equilibrium between free and self-associated molecules was studied in solvents of different polarity. Both the N-methyl quaternary ammonium salt and the O-trimethylsilyl derivative of 3 could be obtained and their structure determined.},
  language  = {en}
}
@article{LazarevaAlbanovShainyanetal.2012,
  author    = {Lazareva, Nataliya F. and Albanov, Alexander I. and Shainyan, Bagrat A. and Kleinpeter, Erich},
  title     = {Synthesis and conformational properties of substituted 1,4,2-oxazasilinanes low temperature NMR study and quantum chemical calculations},
  series = {Tetrahedron},
  volume    = {68},
  journal   = {Tetrahedron},
  number    = {4},
  publisher = {Elsevier},
  address   = {Oxford},
  issn      = {0040-4020},
  doi       = {10.1016/j.tet.2011.11.077},
  pages     = {1097 -- 1104},
  year      = {2012},
  abstract  = {A number of N-substituted 2,2-dimethyl-1,4,2-oxazasilinanes 1 were synthesized and studied by variable temperature dynamic H-1 and C-13 NMR spectroscopy, room temperature N-15 NMR spectroscopy and theoretical calculations at the DFT and MP2 levels of theory. Both the preferred conformers were assigned and the barrier to the ring inversion of the saturated six-membered ring determined. From 1 the corresponding methyl iodide salts were produced, their structure studied by X-ray analysis and found to be in excellent agreement with the results of the theoretical calculations.},
  language  = {en}
}