1-Phenyl-2-(4-methoxyphenyl)benzimidazole → HCID 135601299, compound

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Reaction Steps

A solution of 1-phenyl-2-(4-methoxyphenyl)benzimidazole(0.60 g, 2.0 mmol) in hydrobromic acid (6 ml) and acetic acid (6 ml) was refluxed for 40 hours. The reaction mixture was extracted with diethyl ether (5×150 ml) at a pH of 3-5. The organic solvents were discarded. The aqueous phase was alkalinized to pH 8-9 and extracted with ethyl acetate (5×150 ml). The organic fractions were combined and dried over potassium carbonate, then filtered and the solvents were removed in vacuo to yield a white solid. The solid was triturated in diethyl ether and filtered to yield 0.25 grams of the desired product.

Provenance & Evidence