反应详情

Triphenylphosphine (5.09 g, 19.4 mmol) was dissolved in dichloromethane (66 mL) and treated with imidazole (1.33 g, 19.5 mmol) and iodine (4.92 g, 19.4 mmol), respectively, to give an orange suspension. A solution of (R)-4,4,4-trifluoro-1,3-butanediol (2.34 g, 16.2 mmol) in dichloromethane (18 mL) was added to the suspension and stirred for 30 minutes. The reaction mixture was placed on a silica gel flash column and eluted with 100% dichloromethane to give the product as a pale purple oil (3.30 g, 80%).

1. customrespectively, to give an orange suspension
2. washeluted with 100% dichloromethane