N1-(pyridin-2-yl)benzene-1,2-diamine → (E)-2-[2-(3-Furyl)ethenyl]-1-(2-pyridyl)-1H-benzimidazole

Participants

Reaction Steps

The titled compound was prepared from N-(2-pyridyl)-o-phenylenediamine and (E)-3-(3-furyl)acryloyl chloride (Shizuri, Y.; Ojika, M.; Yamada, K. Tetrahedron Lett., 1981, 22, 4291) according to the preparation of (E)-1-(2-pyridyl)-2-styryl-1H-benzimidazole (Example 1, method A). MW: 287.32; mp: 162.5-164.0° C.; 1H-NMR (CDCl3) δ: 8.79-8.75 (1H, m), 7.99 (1H ddd, J=7.7, 7.7, 1.8 Hz), 7.87 (1H, d, J=15.8 Hz), 7.83-7.78 (1H, m), 7.64-7.62 (1H, m), 7.53-7.39 (4H, m), 7.37-7.22 (2H, m), 6.85 (1H, d, J=15.8 Hz), 6.55 (1H, d, J=1.8 Hz).

Provenance & Evidence