Application of NMR Spectroscopy to the Study of Substituted Piperidine Derivatives. Part II: Use of 15N NMR in Drug Formulations
β Scribed by Cholli, A. L.; Krishnaswami, A.; Venturella, V.
- Book ID
- 115361777
- Publisher
- Society for Applied Spectroscopy
- Year
- 1992
- Tongue
- English
- Weight
- 401 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0003-7028
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π SIMILAR VOLUMES
## Abstract ^13^C and ^15^N spectra of unsymmetrically __N__βsubstituted formamides and alkylβ, substituted alkylβ, and arylcarboxamides, which can be considered as model peptide compounds, were determined and discussed in terms of nitrogen lone pair delocalization. Differential solvent shifts and
## Abstract The analysis of ^15^N chemical shift data from over a hundred anilines, __N__βmethyl anilines, __N__,__N__βdimethyl anilines and phenylhydrazines with substituents in the phenyl ring leads to an empirical equation, Ξ΄~cal~ = Ξ΄on + Ξ__o__ + Ξ__m__ + Ξ__p__, for calculating ^15^N NMR chemi