✦ LIBER ✦
Spectroscopic studies on N,N-dimethylamides—I: Structure-reactivity correlation for rotational barriers from a nuclear magnetic resonance study of p- and m-substituted N,N-dimethylbenzamides
✍ Scribed by P. K. Korver; K. Spaargaren; P. J. van der Haak; Th. J. de Boer
- Publisher
- John Wiley and Sons
- Year
- 1970
- Tongue
- English
- Weight
- 366 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
Rotational barriers in 21 p‐ and m‐substituted N,N‐dimethylbenzamides in CDCl~3~ as solvent have been determined using the intensity ratio method of Woodbrey. These data compare very well with values from the literature^1^ obtained with a total line shape analysis. From structure‐reactivity correlations evidence has been obtained for a relatively strong resonance interaction between the substituent in the aromatic ring and the partially double amide bond.