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Carbon-13 nuclear magnetic resonance spectra of isomeric oxaziridines. Effects of the nitrogen lone pair on carbon-13 chemical shifts

✍ Scribed by Guy J. Jordan; DeLanson R. Crist

Publisher
John Wiley and Sons
Year
1977
Tongue
English
Weight
280 KB
Volume
9
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The carbon‐13 n.m.r. spectra of several oxaziridines were measured. Aliphatic and aromatic ipso carbon atoms trans to the lone pair of nitrogen in oxaziridines were shifted upfield by c. 9 ppm, and 3.4 ppm, respectively, in comparison with isomers of inverted configuration. The results suggest that the nitrogen lone pair is partially responsible for the observed upfield shifts.

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