反应详情

温度

0 °C

The 2,3,5-triiodobenzoyl chloride was dissolved in 60 ml of dry dichloromethane. The solution was cooled to 0° C. and 6.07 g (60.0 mmol) of triethylamine was added. The brown solution was placed under nitrogen and 4.30 g (33.0 mmol) of 2-octanol was added in 10 ml of dry dichloromethane. Dimethylaminopyridine (0.367 g, 3.00 mmol) was added and the resulting solution was stirred at room temperature for 72 hrs. The brown solution was partitioned between 100 ml of dichloromethane and 100 ml of 1M HCl. The dichloromethane layer was washed with saturated NaHCO3 solution (50 ml) and brine (50 ml). The solution was dried over Na2SO4 and concentrated in vacuo to yield a dark brown oil (17.43 g). The oil was purified by flash chromatography using 436 g of silica gel and 5% ethyl acetate/hexane as the eluent. The first 600 ml to elute contained nothing while the pure product eluted with the next 700 ml. Concentration in vacuo afforded 15.68 g (85%) of the product as a yellow tinted oil.

1. customThe brown solution was partitioned between 100 ml of dichloromethane and 100 ml of 1M HCl
2. washThe dichloromethane layer was washed with saturated NaHCO3 solution (50 ml) and brine (50 ml)
3. dry with materialThe solution was dried over Na2SO4
4. concentrationconcentrated in vacuo