1,4-Dioxaspiro[4.5]decan-8-one → 1,4-Dioxaspiro(4.5)decan-8-ol

To a solution of 1,4-dioxaspiro[4.5]decan-8-one (10.0 g) in methanol (120 ml) was added sodium borohydride (4.84 g) at 0° C. over a period of 15 min, and the mixture was stirred at room temperature for 3 hr. The reaction mixture was concentrated in vacuo, and the residue was diluted with ethyl acetate. The mixture was washed with water and saturated brine, dried over anhydrous magnesium sulfate and concentrated in vacuo. The residue was purified by column chromatography on silica gel to give the title compound as a pale yellow oil (6.24 g, 62%).

1. concentrationThe reaction mixture was concentrated in vacuo
2. additionthe residue was diluted with ethyl acetate
3. washThe mixture was washed with water and saturated brine
4. dry with materialdried over anhydrous magnesium sulfate
5. concentrationconcentrated in vacuo
6. customThe residue was purified by column chromatography on silica gel

ORD record

ord-69fa14dda3d84c258af193e08a3ec213

Source dataset

uspto-grants-2010_09

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07803940B2