Sodium Cyanide → 2-(4-Bromo-2,3-difluorophenyl)acetonitrile

Participants

Reaction Conditions

Reaction Steps

To a solution of 1-bromo-4-(bromomethyl)-2,3-difluorobenzene (330 mg, 1.154 mmol) in ethanol (10 mL) stirred under N2 at 0° C. was added NaCN (73.5 mg, 1.500 mmol) in one charge. The reaction mixture was stirred at 10° C. for 12 h. Then the solution was concentrated and distributed between EA and saturated NaHCO3 solution. The combined organic extract was washed with brine, dried over MgSO4, filtered and concentrated. The resulting 2-(4-bromo-2,3-difluorophenyl)acetonitrile was used in the next step without further purification. TLC (PE/EA=5:1, Rf 0.6): 1H NMR (400 MHz, CDCl3) δ 7.39 (ddd, J=1.8, 6.1, 8.2 Hz, 1H), 7.15 (t, J=6.8 Hz, 1H), 3.78 (s, 2H).

Provenance & Evidence