13C NMR spectra of 17-substituted epimeric 17α and 17β-ethynylandrostenes and their hexacarbonyldicobalt complexes
✍ Scribed by V. S. Bogdanov; A. M. Turuta; E. G. Cherepanova; T. M. Fadeeva; A. V. Kamernitsky; A. A. Korobov
- Book ID
- 112387623
- Publisher
- Springer
- Year
- 1993
- Tongue
- English
- Weight
- 534 KB
- Volume
- 42
- Category
- Article
- ISSN
- 1573-9171
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The 17 0 NMR spectra of 22 1,3-dioxanes, four oxanes, four 4-heterooxanes, four tetrahydrofurans and four 1,3-dioxolanes have been recorded and methyl substitution parameters determined for the 1,3-dioxenes.
## Abstract ^1^H, ^13^C and ^17^O NMR spectra for 22 substituted nitropyridines were measured and their ^1^H NMR spectra were analysed. The most significant variations in the NMR parameters are found for isomeric hydroxy derivatives, owing to the possibility of keto–enol tautomerism. The prevalence