反应详情

温度

-50 °C

1,4,8-Trioxaspiro[4.5]decane (0.43 g, 3.0 mmol) produced in Reference Example 13 (13a) was dissolved in tetrahydrofuran (1.0 mL), and the resulting mixture was cooled to −50° C. Subsequently, a 1.0M solution of borane-tetrahydrofuran complex in tetrahydrofuran (3.6 mL) and trimethylsilyl trifluoromethanesulfonate (33 mg, 0.15 mmol) were added. The resulting mixture was warmed to room temperature, followed by stirring for 18 hours. A small amount of water was added, and then the resulting mixture was purified by basic silica gel column chromatography (hexane:ethyl acetate, 100:0-0:100, V/V) to give the desired title compound (0.39 g, yield 88%).

1. temperatureThe resulting mixture was warmed to room temperature
2. customthe resulting mixture was purified by basic silica gel column chromatography (hexane:ethyl acetate, 100:0-0:100, V/V)