(13)C NMR studies of heterocyclic naphtho- and anthraquinones. Deshielding effect on the carbonyl carbon with methyl substitution
Abstract
13C chemical shift assignment of several methyl substituted heterocyclic naphtho- and anthraquinones, including dihydronaphthofuranquinones, azaanthraquinones, benzopyrroloquinolinediones and benzothiophenoquinolinediones, are described. A deshielding effect due to a methyl group was observed over the neighbouring carbonyl carbon, in every case studied. 13C assignments were based on 2D experiments. Copyright © 2007 John Wiley & Sons, Ltd.
Más información
| Título según WOS: | (13)C NMR studies of heterocyclic naphtho- and anthraquinones. Deshielding effect on the carbonyl carbon with methyl substitution |
| Título según SCOPUS: | 13C NMR studies of heterocyclic naphtho- and anthraquinones. Deshielding effect on the carbonyl carbon with methyl substitution |
| Título de la Revista: | MAGNETIC RESONANCE IN CHEMISTRY |
| Volumen: | 46 |
| Número: | 2 |
| Editorial: | Wiley |
| Fecha de publicación: | 2008 |
| Página de inicio: | 191 |
| Página final: | 194 |
| Idioma: | English |
| URL: | http://doi.wiley.com/10.1002/mrc.2156 |
| DOI: |
10.1002/mrc.2156 |
| Notas: | ISI, SCOPUS |