4-bromo-1-fluoro-2-(2-methoxyethoxy)benzene

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 5-Bromo-2-fluoro-phenol (5.0 g, 26.2 mmol), 2-bromoethylether (2.71 ml, 28.8 mmol) and K2CO3 (4.4 g, 31.4 mmol) are mixed in 50 ml DMF and stirred at 50 C for 6 hours. Addition of aqueous NaHCO3 solution and extraction into ethyl acetate yields the title compound as viscous oil. 1H-NMR (400 MHz; DMSO-d6): 7.40 (d, 1H), 7.21 (dd, 1H), 7.08-7.14 (m, 1H), 4.21 (t, 2H), 3.66 (t, 2H), 3.30 (s, 3H). LC-MS (m/z, ES+): 248 (MH+), retention time: 3.02 mins (LC-MS method 3)