HCID 178495856, compound → HCID 178495855, compound

Participants

Reaction Steps

To a solution of [2-(4-amino-3-nitro-phenyl)-1H-benzoimidazol-5-yl]-(2-methoxy-ethyl)-amine (0.5 g, 1.5 mmol) in 4:1 ethyl acetate/methanol (50 ml) under nitrogen, was added 5% palladium on carbon (120 mg) and the mixture was first evacuated and then stirred at room temperature under an atmosphere of hydrogen for 1 day. The reaction mixture was then filtered through Celite, washed with 1:1 ethyl acetate/methanol (10 mL), and the combined filtrate and washings were concentrated to give the crude 4-[5-(2-methoxy-ethylamino)-1H-benzoimidazol-2-yl]-benzene-1,2-diamine which was used in the next step without any purification.

Provenance & Evidence