2-bromo-4-(chloromethyl)-1-fluorobenzene

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

Procedure: 41 g (0.2 mol) of 3-bromo-4-fluoro-benzyl alcohol were dissolved in 250 ml of carbon tetrachloride, and 26 g of thionyl chloride were added dropwise at 20° C., while stirring. The mixture was then stirred at 25°-30° C. for 4 hours and the solvent and excess thionyl chloride were subsequently stripped off at 20° C. under a waterpump vacuum. The residue was distilled in vacuo. 29 g (64.9% of theory) of 3-bromo-4-fluoro-benzyl chloride with a boiling point of 85°-87° C./3 mbars were obtained. The mixture was then stirred at 25°-30° C. for 4 hours were subsequently stripped off at 20° C. under a waterpump vacuum The residue was distilled in vacuo

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

Procedure: 41 g (0.2 mol) of 3-bromo-4-fluoro-benzyl alcohol were dissolved in 250 ml of carbon tetrachloride, and 26 g of thionyl chloride were added dropwise at 20° C., while stirring. The mixture was then stirred at 25°-30° C. for 4 hours and the solvent and excess thionyl chloride were subsequently stripped off at 20° C. under a waterpump vacuum. The residue was distilled in vacuo. 29 g (64.9% of theory) of 3-bromo-4-fluoro-benzyl chloride with a boiling point of 85°-87° C./3 mbars were obtained. The mixture was then stirred at 25°-30° C. for 4 hours were subsequently stripped off at 20° C. under a waterpump vacuum The residue was distilled in vacuo