Conformation-directing effects of a single intramolecular amide-amide hydrogen bond: variable-temperature NMR and IR studies on a homologous diamide series
SH Gellman, GP Dado, GB Liang…
Index: Gellman, Samuel H.; Dado, Gregory P.; Liang, Gui-Bai; Adams, Bruce R. Journal of the American Chemical Society, 1991 , vol. 113, # 4 p. 1164 - 1173
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Citation Number: 355
Abstract
Abstract: We have studied intramolecular hydrogen bonding in a homologous series of diamides (compounds 1-6) in methylene chloride, 9: 1 carbon tetrachloride/benzene, and acetonitrile. By correlating variable-temperature 'H NMR and 1R measurements, we have shown that the temperature dependence of the amide proton NMR chemical shift (Ab/AT) can provide qualitative (and in some cases quantitative) information on the ...
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