Nitrogen-15 nuclear magnetic resonance spectroscopy. Natural abundance nitrogen-15 spectra of the cis and trans isomers of secondary alkylformamides was written by Nakanishi, Hiroshi;Roberts, John D.. And the article was included in Organic Magnetic Resonance in 1981.COA of Formula: C4H7NO This article mentions the following:
The 15N NMR chem. shifts of 17 N-alkylformamides, e.g. HCONHMe, were measured at the natural abundance level and the ratios of cis and trans isomers were determined Substituent effects on the 15N chem. shifts of formamides are compared with those of other N-containing compounds There is a consistent pattern of behavior of the 1 bond spin-spin coupling constants, those of the trans isomers of N-alkylformamides being greater than those of the cis isomers. In the experiment, the researchers used many compounds, for example, N-Cyclopropylformamide (cas: 58644-54-5COA of Formula: C4H7NO).
N-Cyclopropylformamide (cas: 58644-54-5) belongs to amides. Amides can be viewed as a derivative of a carboxylic acid RC(=O)OH with the hydroxyl group –OH replaced by an amine group −NR′R″; or, equivalently, an acyl (alkanoyl) group RC(=O)− joined to an amine group. In simple aromatic amides, fragmentation occurs on both sides of the carbonyl group. If a hydrogen is available in N-substituted aromatic amides, it tends to migrate and form an aromatic amine and the loss of a ketene.COA of Formula: C4H7NO
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics