Benzyl Bromide → 2-(4-Benzyloxy-3-bromophenyl)-4-propylmorpholine

Participants

Reaction Conditions

Reaction Steps

To the phenol from example 30 (117.5 mg, 0.39 mmol) in dry DMF (10 ml), under an atmosphere of nitrogen, was added potassium carbonate (75 mg, 0.54 mmol) and benzyl bromide (0.07 ml, 0.54 mmol). The reaction mixture was heated to 150° C. for 48 hours. After cooling, the reaction mixture was concentrated in vacuo and the residue partitioned between ethyl acetate (50 ml) and water (50 ml). The aqueous layer was then re-extracted with ethyl acetate (2×20 ml). The combined organic extracts were then dried over anhydrous magnesium sulphate, filtered and concentrated in vacuo to give the crude product as a brown oil. This was purified by column chromatography on silica eluting with dichloromethane:methanol (98:2) to give the title compound as a colourless oil (153 mg, 0.39 mmol, 100%). 1H NMR (CDCl3, 400 MHz) δ: 0.93 (t, 3H), 1.56 (q, 2H), 2.05 (t, 1H), 2.25 (t, 1H), 2.37 (t, 2H), 2.82 (d, 1H), 2.92 (d, 1H), 3.85 (t, 1H), 4.02 (d, 1H), 4.52 (d, 1H), 5.15 (s, 2H), 6.87 (d, 1H), 7.20 (d, 1H), 7.30 (d, 1H), 7.37 (t, 2H), 7.45 (d, 2H), 7.58 (s, 1H). LRMS: m/z 392 (M−H+).

Provenance & Evidence