反应详情

A solution of 10 g of 2,2-dimethyl-1,3-propanediol in 100 ml of tetrahydrofuran is added in drops to a suspension of 3.85 g of sodium hydride (60%) in 30 ml of tetrahydrofuran. It is allowed to stir for 45 more minutes, and then 14.5 g of tert-butyldimethylsilyl chloride is added. Then, it is stirred for one more hour at 25° C. Then, the reaction mixture is poured into saturated sodium bicarbonate solution. It is extracted with ethyl acetate, the organic phase is washed with saturated sodium chloride solution, dried on sodium sulfate, and concentrated by evaporation in a vacuum. The crude product is purified by column chromatography on silica gel. 18.4 g of product is obtained.

1. stirringThen, it is stirred for one more hour at 25° C
2. extractionIt is extracted with ethyl acetate
3. washthe organic phase is washed with saturated sodium chloride solution
4. customdried on sodium sulfate
5. concentrationconcentrated by evaporation in a vacuum
6. customThe crude product is purified by column chromatography on silica gel