Hydrochloric Acid → HCID 22736747, compound

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Reaction Steps

Free base of the titled compound was prepared from N-(2-pyridyl)-o-phenylenediamine and (E)-4-methylcinnamoyl chloride (Aitken, R. A.; Boeters, C.; Morrison, J. J. J. Chem. Soc. Perkin Trans.I; 1994, 17, 2473) according to the preparation of (E)-1-(2-pyridyl)-2-styryl-1H-benzimidazole (Example 1, method A). The free base was dissolved with a 10% methanol solution of hydrogen chloride (5 ml). Concentration and recrystallization from ethyl acetate/ethanol yielded the titled compound. MW: 347.85; mp:>220° C.; 1H-NMR (CDCl3) δ: 9.04 (1H, d, J=16.1 Hz), 8.89-8.84 (1H, m), 8.17 (2H, d, J=7.7 Hz), 7.72-7.66 (2H, m), 7.58-7.42 (5H, m), 7.17 (2H, d, J=7.7 Hz), 6.91 (1H, d, J=16.1 Hz), 2.35 (3H, s).

Provenance & Evidence