反应详情

A solution of [4′-(trifluoromethyl)-3-biphenylyl]methanol (177 mg, 0.70 mmol) in dry DCM (10 mL) was cooled to 0° C. (ice/water bath) under nitrogen and treated with CBr4 (256 mg, 0.77 mmol) in one portion. PPh3 (202 mg, 0.77 mmol) was then added portion-wise and the resulting mixture stirred for 1 hour at this temperature and was then allowed to warm to rt. The resulting mixture was then reduced and the residue purified directly by SPE (silica, 10 g cartridge) eluting with cyclohexane:DCM afforded the title compound as a colourless oil (220 mg).

1. customthe residue purified directly by SPE (silica, 10 g cartridge)
2. washeluting with cyclohexane