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Communication | Special issue | Vol 11, No. 1, 1978, pp.337-345
Published online, 1st January, 1970
DOI: 10.3987/S(N)-1978-01-0337
13C-NMR Spectra of Aromatic N-Oxides

Harald Günther* and Angela Gronenborn

*Institute of Organic Chemistry, University of Cologne, Greinstrasse 4, D-50939 Köln, Germany


The 13C-NMR spectra of six aromatic N-oxides have been measured and assigned. Empirical substituent effects on carbon chemical shifts in α-, β-, and γ-positions to the NO-group are derived. A strong shielding effect for carbons in peri-position is found.