## Abstract ^15^N NMR chemical shifts are reported for cyanamide, phenylcyanamide and nine substituted phenylcyanamide derivatives. Results are discussed in terms of the degree of the π interaction between the cyanamide moiety and the aromatic ring and the stereoelectronic influence of the substitu
A study of the 15N NMR chemical shifts in substituted anilines and phenylhydrazines, and their derivatives
✍ Scribed by Linsheng Li; Lina Zhang; Yunjun Lan; Changhui Zhang
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 88 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0749-1581
- DOI
- 10.1002/mrc.2245
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✦ Synopsis
Abstract
The analysis of ^15^N chemical shift data from over a hundred anilines, N‐methyl anilines, N,N‐dimethyl anilines and phenylhydrazines with substituents in the phenyl ring leads to an empirical equation, δ~cal~ = δon + Δ__o__ + Δ__m__ + Δ__p__, for calculating ^15^N NMR chemical shifts of the amino group. This equation is based on a linear regression analysis using eighteen substituent parameters and leads to good conformity with the expected data. Copyright © 2008 John Wiley & Sons, Ltd.
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