Sodium borohydride → 4-[N-(2-pyrimidinyl)aminomethyl]aniline

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Reaction Steps

In THF (20 ml) and methanol (20 ml) was dissolved N-(4-nitrobenzyl)-N-(2-pyrimidinyl)amine (921 mg, 4.00 mmol), and to the mixture were added at 0° C. nickel bromide (137 mg) and sodium boro hydride(955 mg). The mixture was stirred at room temperature for 30 minutes and concentrated under reduced pressure. To the residue were added ethyl acetate, THF and water, and the insoluble materials were filtered off. The aqueous layer was extracted with ethyl acetate-THF, and the organic layer was dried with anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified with column chromatography (silica gel 30 g, ethyl acetate/hexane=1/1), and the desired fraction was concentrated under reduced pressure. To the residue was added diethylether, and the insoluble materials were filtered, which were washed with diethylether and dried under reduced pressure to give 4-[N-(2-pyrimidinyl)aminomethyl]aniline (208 mg, 1.04 mmol, 26%).

Provenance & Evidence