| Autor: |
Garbuz, N., Solovei, L., Kovganko, N., Chernov, Yu. |
| Zdroj: |
Journal of Applied Spectroscopy; Jan2002, Vol. 69 Issue 1, p58-61, 4p |
| Abstrakt: |
The intramolecular hydrogen bond in steroid 5 hydroxy 6 ketones and 5 hydroxy 6 ketoximes of the stigmastane series has been investigated by the method of IR spectroscopy. It is shown that 5β hydroxy groups in cis A/ B steroids are linked by the intramolecular hydrogen bond with polar substituents at C3 and C6. These hydrogen bonds are lacking in corresponding trans A/ B steroids. According to the IR spectra, intramolecular associates of polymer type are formed in 5 hydroxy 6 hydroxyminosteroids. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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