| Autor: |
Kharlamova, E. N., Gur'yanova, E. N., Klimenko, S. K., Kharchenko, V. G. |
| Zdroj: |
Chemistry of Heterocyclic Compounds; June 1978, Vol. 14 Issue: 6 p605-608, 4p |
| Abstrakt: |
The dipole moments and UV spectra of 17 compounds of the 5,6-tetramethylene- and 5,6-trimethylenethiapyran series and their saturated analogs were measured. The dipole moments of the investigated compounds range from 1.2 to 2.0 D. The effect of the size of the saturated side ring and the position of the unsaturated bonds in the sulfur-containing heteroring on the dipole moments is demonstrated. The UV spectra of the compounds with, respectively, five- and six-membered saturated side rings are virtually identical. The position of the bands is determined primarily by the structure of the heteroring. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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