Deuterium-induced carbon-13 isotope shifts in nitrogen-containing benzoheterocyclic systems

Authors
Morales-Rios, M Cervantes-Cuevas, H Salgado-Escobar, I Joseph-Nathan, P
Citation
M. Morales-rios et al., Deuterium-induced carbon-13 isotope shifts in nitrogen-containing benzoheterocyclic systems, MAGN RES CH, 37(3), 1999, pp. 243-245
Citations number
19
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
MAGNETIC RESONANCE IN CHEMISTRY
ISSN journal
07491581 → ACNP
Volume
37
Issue
3
Year of publication
1999
Pages
243 - 245
Database
ISI
SICI code
0749-1581(199903)37:3<243:DCISIN>2.0.ZU;2-3
Abstract
The deuterium-induced C-13 isotope shifts of 21 nitrogen-containing benzohe terocyclic systems labelled at the NH position were measured in DMSO-d(6). The compounds included bridged diphenylamines, benzolactams, 4-quinolinone, acridinones, carbazoles and indoles. The variations of two-bond isotope ef fects are discussed as a function of cross-conjugation of the N-H(D) group and acidity of the NH proton. Copyright (C) 1999 John Wiley & Sons, Ltd.