International Journal of Spectroscopy

Research Article

Spectrometric Study of the Nitrile-Ketenimine Tautomerism

Table 5

Nuclear magnetic resonance spectra (1H and 13C) of the amination products of ethyl-4,4-dicyano-3-methyl-3-butenoate.
408345.tab.005
1H NMR(CDCl3) (ppm):  1.1-1.2 (m, ((a) and (d)); 1.7 (s, (c)); 2.6 (q, J: 7.4 Hz (b)); 2.9 (s, (g)); 3.2 (s, (i)); (4.2 (q, J: 7.2 Hz (e)); 5.0–5.2 (m, (f)); 5.7 (s, 1H, (h)); 8.4 (s, (j)).
13C NMR(CDCl3) (ppm):  14.1 (d); 14.4 (a); 18.7 (c); 38.7 (b); 40.7 (g); 60.1 (e); 62.5 (i); 111.6 (f); 114.6 (h); 124.2 (k); 140.1 (m); 149.1 (l); 166.5 (n); 169.0 (j).