alpha-Chloro-m-nitrotoluene → 3-(3,4-Dimethoxy-phenyl)-1-(3-nitro-benzyl)-1H-pyrrolo[2,3-b]pyridine

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Reaction Steps

3-(3,4-Dimethoxy-phenyl)-1H-pyrrolo[2,3-b]pyridine 1 (35 mg, 0.14 mmole) was dissolved in 15 mL of DMF and sodium hydride (60% dispersion in mineral oil, 10 mg, 0.25 mmol) was added in small portion to the reaction mixture. After stirring for 30 minutes, m-nitro-benzyl chloride (30 mg, 0.14 mmole) was added to the reaction mixture and was stirred for 2 hours. The reaction mixture was poured into 50 mL of ice water and was extracted with ethyl acetate. The organic layer was washed with saturated sodium bicarbonate followed by saturated potassium bisulfate and then brine. The resulting solution was dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure. The residue was purified by silica gel chromatography (30% ethyl acetate in hexanes) to yield 42 mg (71%) of the titled compound as a white solid. MS(ESI) [M+H+]+=390.1.

Provenance & Evidence