Abstract
Synthesis of N-and C-substituted derivatives of benzo[h][1,6]naphthyridine, bearing 2-hydroxyethyl group has been made by quaternization reaction and by condensation of corresponding methylbenzonaphthyridines with formaldehyde. For six derivatives of isomeric benzo[c][1,5]-, benzo[h][1,6]-, and benzo[f][1,7]naphthyridines the 13C NMR spectra are discussed.
For ten compounds the geometry was optimized with the AM1 and, in one case also with the ab initio 6–31G method; their effective charge values have also been calculated.
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Deska, M., Śliwa, W. Syntheses, geometry optimization, and electronic structure of N-and C-substituted benzonaphthyridines. Chem. Pap. 60, 32–41 (2006). https://doi.org/10.2478/s11696-006-0006-z
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DOI: https://doi.org/10.2478/s11696-006-0006-z