| Autor: |
Yuzo Kawada, Ryonosuke Muneyuki, Kazuo Tori, Ryoji Noyori, Hiizu Iwamura, Tadashi Sugawara |
| Rok vydání: |
1979 |
| Předmět: |
|
| Zdroj: |
Tetrahedron Letters. 20:3449-3452 |
| ISSN: |
0040-4039 |
| DOI: |
10.1016/s0040-4039(01)95432-2 |
| Popis: |
Natural-abundance 17O NMR spectra have been measured for twenty one oxiranes. Their chemical shifts covering a 100 ppm range were interpreted in terms of the paramagnetic β- and diamagnetic γ-effects. In addition, through-space orbital interaction between the ethylenic π and the Walsh orbitals of the oxirane ring was suggested by a lowfield shift in norbornadiene exo -oxide. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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