反应详情

Under ice cooling, 5 drops of dimethylformamide and 0.75 ml of thionyl chloride were added to a solution of 1.24 g of 2-chloro-6-methylbenzyl alcohol in 15 ml of toluene. The mixture was stirred at ambient temperature for 2 hours. The reaction mixture was concentrated under reduced pressure and the residue was then azeotropically distilled with 5 ml of toluene 3 times to give an oil. The resulting oil was dissolved in 15 ml of acetonitrile, and 2.08 g of triphenylphosphine was added to the solution. The mixture was heated under reflux for 16 hours. The reaction mixture was concentrated under reduced pressure and the collected crystals were washed with ethyl acetate to give 3.15 g of (2-chloro-6-methylbenzyl)(triphenyl)phosphonium chloride as colorless crystals.

1. concentrationThe reaction mixture was concentrated under reduced pressure
2. distillationthe residue was then azeotropically distilled with 5 ml of toluene 3 times
3. customto give an oil
4. temperatureThe mixture was heated
5. temperatureunder reflux for 16 hours
6. concentrationThe reaction mixture was concentrated under reduced pressure
7. washthe collected crystals were washed with ethyl acetate