✦ LIBER ✦
Stereochemical aspects of proton chemical shifts. VII-4-fluoro-prolines. A FURTHER CASE OF VIOLATION OF THE “SYN-UPFIELD” RULE IN 1H-NMR.
✍ Scribed by M. J. O. Anteunis; P. Cuypers; Bogdan Liberek; A. Kolodziejczyk
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2010
- Weight
- 170 KB
- Volume
- 87
- Category
- Article
- ISSN
- 0037-9646
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✦ Synopsis
Abstract
It is reported that, as previously also found for ‐N°Me~3~ groupings, the “syn‐upfield” effect caused by F fails for 4‐F‐prolines and their derivatives.