Potassium Bromide → HCID 54391518, compound

Participants

Reaction Steps

By substituting an equivalent amount of 3-cyano-2-(4-nitrophenylthio)-5-[2-(4-tert-butoxycarbonylphenyl)ethenyl]pyridine in the foregoing procedure there is obtained 2-amino-3-cyano-5-[2-(4-tert-butoxycarbonylphenyl)ethenyl]pyridine, which can be alternatively named as 2-amino-3-cyano-5-(4-t-butoxycarbonylstyryl)pyridine; yield 1.14 g (84%) of light yellow crystals, mp 190°-195° C.; NMR (Me2SO-d6) delta 1.57 (s, 9H), 6.57-6.60 (m, 2H), 7.00 (br, 2H), 7.35 (d, 2H, J=8.1 Hz), 7.65 (d, 1H, J=2.7 Hz), 7.84 (d, 2H, J=8.1 Hz), 8.00 (d, 1H, J=2.7 Hz); IR (KBr) 3460, 3360, 2215, 1707, 1623, 1480, 1300, 1287, 1158 cm-1.

Provenance & Evidence