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Substituent effects. XI. Polar and .pi.-electron substituent effects by fluorine-19 nuclear magnetic resonance

✍ Scribed by Adcock, W.; Dewar, M. J. S.; Gupta, B. D.


Book ID
121357468
Publisher
American Chemical Society
Year
1973
Tongue
English
Weight
822 KB
Volume
95
Category
Article
ISSN
0002-7863

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Fluorine substituent effects for tryptop
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## Abstract The ^13^C and ^1^H NMR spectra of monofluorotryptophans and difluorotryptophans in methanol‐__d__~4~ were assigned based on 1D and 2D NMR techniques. Fluorine substituent effects on the chemical shifts (SCS~s~) of tryptophan were calculated and compared with those for indole. The fluori