反应详情

NaH (3 g, 75 mmol, 60% in oil) was added portion-wise to a stirred and cooled (0° C.) solution of but-2-ene-1,4-diol (6 g, 68.09 mmol) in dry tetrahydrofuran (250 mL). After the addition, the mixture was allowed to warm to room temperature and stirred for another two hours. The resulting white mixture was then cooled (0° C.) and tert-butyl-chlorodiphenylsilane (15.7 mL, 61.28 mmol) was added drop wise. After twenty minutes, the cooling bath was removed and the mixture was allowed to stir overnight at room temperature. Saturated NH4Cl was poured into the reaction mixture and the reaction was partitioned with diethyl ether (200 mL). The organic layer was washed with brine, dried (MgSO4), and filtered. The resulting oil was used in the following step without further purification.

1. additionAfter the addition
2. stirringstirred for another two hours
3. additionwas added drop wise
4. waitAfter twenty minutes
5. customthe cooling bath was removed
6. stirringto stir overnight at room temperature
7. additionSaturated NH4Cl was poured into the reaction mixture
8. customthe reaction was partitioned with diethyl ether (200 mL)
9. washThe organic layer was washed with brine
10. dry with materialdried (MgSO4)
11. filtrationfiltered
12. customThe resulting oil was used in the following step without further purification