par Defay, Nicole ;Maetens, D.;Hinkens, Raymonde
Référence Organic Magnetic Resonance, 22, 5, page (340-344)
Publication Publié, 1984
Article révisé par les pairs
Résumé : The 13C NMR spectra of 1,4,5,8‐tetraazaphenanthrene (pyrazino[2,3‐f] quinoxaline), eleven of its derivatives [2‐ and 3‐chloro, ‐methoxy and ‐(1′‐piperidino), 2,3‐dichloro, ‐dimethoxy, ‐dimethyl and ‐di(1′‐piperidino) and 9‐methoxy] and of 1,4,5,8,9,12‐hexaazatriphenylene (dipyrazino[2,3‐f: 2′,3′‐h]quinoxaline) have been assigned by {1H} selective decoupling experiments, correlations and additivities of substituent‐induced chemical shifts and proton–carbon coupling patterns. Assignments of proton spectra are extended. Copyright © 1984 Wiley Heyden Ltd.