SPECIFIC INTRAMOLECULAR C-H-CENTER-DOT-CENTER-DOT-CENTER-DOT-O INTERACTIONS IN 1-VINYL-2-FORMYLIMIDAZOLE AND 1-VINYL-2-FORMYLBENZIMIDAZOLE STUDIED BY H-1 AND C-13 NMR SPECTRAL DATA

Authors
AFONIN AV BAIKALOVA LV DOMNINA ES
Citation
Av. Afonin et al., SPECIFIC INTRAMOLECULAR C-H-CENTER-DOT-CENTER-DOT-CENTER-DOT-O INTERACTIONS IN 1-VINYL-2-FORMYLIMIDAZOLE AND 1-VINYL-2-FORMYLBENZIMIDAZOLE STUDIED BY H-1 AND C-13 NMR SPECTRAL DATA, Russian chemical bulletin, 45(5), 1996, pp. 1137-1141
Citations number
17
Categorie Soggetti
Chemistry
Journal title
Russian chemical bulletin → ACNP
ISSN journal
10665285
Volume
45
Issue
5
Year of publication
1996
Pages
1137 - 1141
Database
ISI
SICI code
1066-5285(1996)45:5<1137:SICI>2.0.ZU;2-E
Abstract
According to the H-1 and C-13 NMR spectral data, the vinyl group in 1- vinyl-2-formylimidazole and 1-vinyl-2-formylbenzimidazole is trans-ori ented with respect to the formyl fragment, while the carbonyl group oc cupies the anti-position with respect to the N atom of pyridine cycle. A specific intramolecular C-H...O interaction of a weak hydrogen bond type is realized between the alpha-H atom of the vinyl group and O at om of the carbonyl group.