FT-IR study of anomeric pent-2-enopyranosides
Abstract
The infrared study of the solvent effect on D-glycero-pent-2-enopyranosides (α and β) that can be used as substrate precursors in the synthesis of antibiotic ristomycin components, is reported. The higher energy content in α anomers justifies differences in intra- and interbonding with respect to β anomers of the OH and the CO moieties. This behaviour is confirmed by the analysis of half band width values in different solvent mixtures. The pronounced γC(2)-H band found only in α derivatives, makes this vibrational mode of a diagnostic importance in the assignment of the configuration.
- Publication:
-
Journal of Molecular Structure
- Pub Date:
- May 2001
- DOI:
- 10.1016/S0022-2860(00)00900-5
- Bibcode:
- 2001JMoSt.565..271B
- Keywords:
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- D-glycero-pent-2-enopyranosides;
- Infrared spectra;
- Hydrogen bonding;
- Molecular structure