Nitrogen??15 nuclear magnetic resonance spectroscopy. Natural abundance nitrogen??15 spectra of the cis and trans isomers of secondary alkylformamides

H Nakanishi, JD Roberts

Index: Nakanishi, Hiroshi; Roberts, John D. Organic Magnetic Resonance, 1981 , vol. 15, # 1 p. 7 - 12

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Citation Number: 21

Abstract

Abstract The 15 NMR chemical shifts were measured of a number of N-substituted formamides and acetamides at the natural abundance level. The ratios of the cis and trans isomers for several N-alkylformamides were also determined. Substituent effects on the 15 N chemical shifts of formamides are compared with those of some other nitrogen-containing compounds. There is a consistent pattern of behavior of the one bond spin–spin coupling ...