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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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1H, 13C and 17O NMR study of substituted
✍ Erkki Kolehmainen; Katri Laihia; Danuta Rasala; Ryszard Gawinecki 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 492 KB 👁 1 views

## 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