Water → 2-Benzyl-3-(4'-bromomethylbiphen-4-yl)benzofuran

Participants

Reaction Steps

To a solution of 4′-(2-benzylbenzofuran-3-yl)biphenyl-4-methanol (5.01 g, 12.7 mmol) in anhydrous acetonitrile (75 mL) was added dibromotriphenylphosphorane (5.45 g, 12.7 mmol) as a solid portionwise over 15 mins. The reaction was stirred for 2 hours (TLC control) and then poured into water (100 mL) and extracted with diethyl ether (3×100 mL). The combined extract was washed with water, brine, dried over anhydrous MgSO4, filtered and concentrated in vacuo to afford the title compound as an off-white solid (4.98 g, 87%): 1H NMR (CDCl3, 300 MHz): δ 7.70 (2H, m, Ar—H), 7.63 (4H, m, Ar—H), 7.50 (3H, m, Ar—H), 7.30 (4H, m, Ar—H), 7.25 (4H, m, Ar—H), 4.57 (2H, s, CH2Br), 4.26 (2H, PhCH2).

Provenance & Evidence