反应详情

To a solution of (S)-1,3-butanediol (1.0 g) and triethylamine (1.12 g) in dichloromethane (30 ml) was added portionwise p-toluenesulfonyl chloride (2.12 g) at 0° C., and then the mixture was stirred at ambient temperature for 3hours and stand overnight. The resulting solution was dilueted with dichloromethane (30 ml) and the organic layer was washed successively with 1 N hydrochloric acid, saturated sodium bicarbonate aqueous solution and brine. Drying, filtering and removal of solvents afforded (S)-3-hyrdoxybutyl p-toluenesulfonate (2.26 g).

1. waitstand overnight
2. washthe organic layer was washed successively with 1 N hydrochloric acid, saturated sodium bicarbonate aqueous solution and brine
3. customDrying
4. filtrationfiltering
5. customremoval of solvents