Carbon-13 nuclear magnetic resonance spectra of isomeric oxaziridines. Effects of the nitrogen lone pair on carbon-13 chemical shifts
Autor: | Guy J. Jordan, Delanson R. Crist |
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Rok vydání: | 1977 |
Předmět: | |
Zdroj: | Organic Magnetic Resonance. 9:322-324 |
ISSN: | 1097-458X 0030-4921 |
DOI: | 10.1002/mrc.1270090607 |
Popis: | 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. |
Databáze: | OpenAIRE |
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