Potassium Carbonate → HCID 68689447, compound

Participants

Reaction Steps

A mixture of 10,11-dihydro-5H-pyrrolo[2,1-c][1,4]benzodiazepine (0.200 g, 1.09 mmol), 4-bromomethyl-biphenyl (0.322 g, 1.303 mmol) and potassium carbonate (0.300 g, 2.17 mol) in dry N, N-dimethyl formamide (6 mL) was stirred at room temperature under nitrogen for 24 hours. The reaction mixture was then partitioned between ethyl acetate (50 mL) and 2 M sodium hydroxide (50 mL). The separated organic phase was washed with 2 M sodium hydroxide (50 mL), water (50 mL) and brine (50 mL), dried over anhydrous magnesium sulfate, and concentrated in vacuo to afford a colorless syrup (0.42 g). Purification by flash chromatography using a solvent gradient of 0 to 5% ethyl acetate in hexane afforded a white foam that was crystallized from ethyl acetate/hexane to afford the title compound (0.261 g, 68%) as a white crystalline solid, m.p. 135-137° C.

Provenance & Evidence