Exchange of amide protons with deuterium results in changes of 13 C chemical shifts for carbon atoms near the site of substitution (CH{N and N{C|O). There is a measurable decrease in the isotopic shifts of CH{N for cycloalkylacetamides as ring size increases from 3 to 8 and for lactams as ring size
Are relaxation reagents really shiftless? Medium effects on 13C NMR chemical shifts
โ Scribed by P.M Henrichs; S Gross
- Publisher
- Elsevier Science
- Year
- 1975
- Weight
- 279 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0022-2364
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