Benzyl Bromide → HCID 14888723, compound

Participants

Reaction Steps

To a stirred solution of 4-bromophenyl acetic acid (7.5 g, 35.0 mmol) in DMF (60 mL) at rt were added Cs2CO3 (12.41 g, 38.15 mmol) and benzyl bromide (6.77 g, 39.6 mmol). The reaction mixture was stirred overnight at room temperature, and then at 100° C. for 1 h and cooled to rt. The solvent was removed under reduced pressure and poured into cold 1 N HCl (50 mL). The mixture was extracted with ethyl acetate (2×100 mL) and the combined organic layers were washed with brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was recrystallized from hexanes to afford (4-bromo-phenyl)acetic acid benzyl ester as a white solid. (10.65 g, 100%): 1H NMR (300 MHz, CDCl3): δ 7.42 (d, J=8.4 Hz, 2H), 7.25-7.34 m, 5H), 7.14 (d, J=8.4 Hz, 2H), 5.12 (s, 2H), 3.61 (s, 2H); TLC conditions: Uniplate silica gel, 250 microns; mobile phase=ethyl acetate-hexanes (1:5); Rf=0.8.

Provenance & Evidence