| Автор | Riddell, F. G. |
| Автор | Lehn, J. M. |
| Дата выпуска | 1968 |
| dc.description | The nuclear magnetic resonance spectra of a series of tetrahydro-1,3-oxazines are described. The spectral parameters are discussed in terms of the stereochemistry at the nitrogen centre. The C-2 chemical shift differences are influenced by the orientation of both the lone pair and the N-substituent, whereas only the orientation of the lone pair seems to affect the C-2 geminal coupling constant. The axialâ equatorial free-energy differences for N-methyl groups in this series are measured. |
| Формат | application.pdf |
| Издатель | Royal Society of Chemistry |
| Название | The influence of the stereochemistry of the nitrogen centre on proton chemical shifts and on1H–1H and15N–1H spin–spin coupling in tetrahydro-1,3-oxazines |
| Тип | research-article |
| DOI | 10.1039/J29680001224 |
| Print ISSN | 0045-6470 |
| Журнал | Journal of the Chemical Society B: Physical Organic |
| Первая страница | 1224 |
| Последняя страница | 1228 |
