## Abstract Carbonβ13 NMR chemical shifts are reported for six angular and one linear dichloropyridoquinolines in CDCl~3~. The chemical shift assignments have been made using model compounds, fully coupled spectra, selective proton decoupling and results from lanthanide shift studies. Chlorine subs
Nuclear magnetic resonance studies on dipeptides
β Scribed by F. Conti; C. Pietronero; P. Viglino
- Publisher
- John Wiley and Sons
- Year
- 1970
- Tongue
- English
- Weight
- 315 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0749-1581
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β¦ Synopsis
Abstract
Dipeptides of different amino acids have been studied by NMR in aqueous solutions at different pH values. The results obtained are discussed in terms of the different contributions to the chemical shift of the Ξ±βCH protons.
π SIMILAR VOLUMES
## Abstract The magnitudes of the two spinβspin coupling constants __J__(N^1^__H__ β¦οΈ ^13^C), and all relatives signs of the couplings __J__(^1^__H__ β¦οΈ ^1^__H__) and __J__(^1^__H__ β¦οΈ ^13^C) of formamideβ^14^N, were determined by triple resonance experiments of the types ^1^__H__β{^13^C}β{^14^N} a
## Abstract ^13^C n.m.r. spectra of some substituted isoxazoles have been examined to ascertain the reactive site in the metallation of 4βsubstituted 3,5βdimethylisoxazoles. The results obtained indicate that metallation occurred exclusively at the Cβ5 methyl.