反应 #1924609
ord-f1ddfad65a8440ba925054a0079cf581
反应方程式
反应物
试剂
无
溶剂
反应条件
温度
0°CELSIUS
详细条件
See reaction.notes.procedure_details.
后处理
- 1workup.STIRRINGthe reaction mixture stirred at 0° C. for 4 h
- 2洗涤washed with water
- 3萃取the organic layer extracted into hexane/ethyl acetate (3×30 ml, 1:1)
- 4洗涤The combined extracts were washed with brine
- 5其他dried (MgS04)
- 6其他the solvent removed in vacuo
- 7其他to yield colorless oil
- 8其他The crude product was purified by column chromatography [silica gel eluted with hexane/ethyl acetate (4:1)]
- 9其他to yield a colorless oil
实验过程
Monochloroborane-methyl sulfide (1.10 ml, 1.16 g, 10.5 mmol) was added dropwise to a stirred, cooled (0° C.) solution of compound 9 (2.56 g, 10.0 mmol) in THF (30 ml). The reaction mixture was stirred at 0° C. for 24 h, and a solution of hydrogen peroxide (10 ml, 30% in water) added dropwise and the reaction mixture stirred at 0° C. for 4 h, washed with water and the organic layer extracted into hexane/ethyl acetate (3×30 ml, 1:1). The combined extracts were washed with brine, dried (MgS04) and the solvent removed in vacuo to yield colorless oil. The crude product was purified by column chromatography [silica gel eluted with hexane/ethyl acetate (4:1)] to yield a colorless oil.