Diethyl Ether → 3-Bromo-1,1-bis(4-fluorophenyl)propane

Participants

Reaction Conditions

Reaction Steps

50.1 g (0.202 mol) of 3,3-bis(4-fluorophenyl)propanol were dissolved in 150 ml of toluene, and a solution of 21.8 g (0.081 mol) of PBr3 in 50 ml of toluene was added dropwise. The mixture was stirred at room temperature for 30 minutes and at 60° C. for 90 minutes and, for hydrolysis, was poured onto 400 ml of ice, 200 ml of ether were added, the organic phase was separated off, washed with NaHCO3 solution and NaCl solution, dried and concentrated and the residue was distilled in vacuo for purification.

Provenance & Evidence