Ethyl 4-(4-Cyano-1-methyl-1H-imidazol-5-yl)-1-ethyl-1H-pyrrole-2-carboxylate, 7
Imidazolpyrrole 7 (58.6 g, 84% yield) as white plates (mp 208–216 °C):
1H NMR (400 MHz, DMSO-d6) δ 7.85 (s, 1H), 7.68 (d, J = 1.8 Hz, 1H), 7.21 (d, J = 1.8 Hz, 1H), 4.39 (q, J = 7.1 Hz, 2H), 4.27 (q, J = 6.9 Hz, 2H), 3.72 (s, 3H), 1.35 (t, J = 7.1 Hz, 3H), 1.29 (t, J = 7.1 Hz, 3H);
13C NMR (100 MHz, DMSO-d6) δ 159.7, 140.4, 136.2, 127.9, 122.2, 116.5, 116.1, 108.9, 108.2, 59.9, 43.9, 33.0, 16.8, 14.2;
HRMS-ESI (m/z) calcd for C14H17N4O2 [M + H]+ 273.1346, found 273.1342.
1H NMR (400 MHz, DMSO-d6) δ 7.85 (s, 1H), 7.68 (d, J = 1.8 Hz, 1H), 7.21 (d, J = 1.8 Hz, 1H), 4.39 (q, J = 7.1 Hz, 2H), 4.27 (q, J = 6.9 Hz, 2H), 3.72 (s, 3H), 1.35 (t, J = 7.1 Hz, 3H), 1.29 (t, J = 7.1 Hz, 3H);
13C NMR (100 MHz, DMSO-d6) δ 159.7, 140.4, 136.2, 127.9, 122.2, 116.5, 116.1, 108.9, 108.2, 59.9, 43.9, 33.0, 16.8, 14.2;
HRMS-ESI (m/z) calcd for C14H17N4O2 [M + H]+ 273.1346, found 273.1342.
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