(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.
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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-BLACKWELL |
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 |