反应详情

温度

15 °C

To a mixture of Ti(OiPr)4 (0.33 mL, 0.001 mol, Ardrich) and (5S)-5-((tetrahydro-2H-pyran-2-yloxy)methyl)-dihydrofuran-2(3H)-one (1.0 g, 0.005 mol) in 18.7 mL of THF was added a solution of 3M EtMgBr in Et2O (4.3 mL, 0.0125 mol, Aldrich) via a syringe over 3 hrs at 15° C. After stirring for additional one hour at 15° C., the reaction was quenched with 20 mL of saturated NH4Cl solution, filtered and extracted with EtOAc (50 mL×2). The combined organic phases were dried over Na2SO4 and concentrated in vacuo. The residue was purified by a silica gel column chromatography to afford 1-((S)-3-hydroxy-4-(tetrahydro-2H-pyran-2-yloxy)butyl)cyclopropanol as colorless oil (0.853 g, 74%)2.

1. customthe reaction was quenched with 20 mL of saturated NH4Cl solution
2. filtrationfiltered
3. extractionextracted with EtOAc (50 mL×2)
4. dry with materialThe combined organic phases were dried over Na2SO4
5. concentrationconcentrated in vacuo
6. customThe residue was purified by a silica gel column chromatography