| Autor: |
Garbuz, N. I., Sokolov, Yu. A., Solovei, L. P., Litvinovskaya, R. P., Drach, S. V., Baranovskii, A. V., Khripach, V. A. |
| Předmět: |
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| Zdroj: |
Journal of Applied Spectroscopy; Mar2006, Vol. 73 Issue 2, p155-163, 9p, 1 Diagram, 2 Charts, 1 Graph |
| Abstrakt: |
We have used IR spectroscopy and the quantum chemical AM1 method to study stereoisomeric 22(23)-isoxazolinyl steroids with a hydroxyl group at C20 or C22, in order to establish the spectral features that will allow us to identify their stereoisomers. We have carried out a conformational analysis of isoxazolinyl steroid stereoisomers, and we have calculated the populations of their stable conformers. We have assigned the bands in the IR spectra of the stereoisomers in the region of the stretching vibrations of OH groups, and have analyzed the possibility of intramolecular hydrogen bond formation between the OH groups and proton-acceptor centers of the isoxazoline ring. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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