反应详情

To a solution of trans-ethyl 4-hydroxycyclohexanecarboxylate (1 g, 5.8 mmol) in THF (50 mL) was added dropwise methylmagnesium bromide (7.7 mL, 23.2 mmol) at −78° C. The mixture was stirred at room temperature for 2 h. TLC (PE:EA=1:1) showed the reaction was complete. The mixture was quenched by the addition of NH4Cl (100 mL) and extracted with EtOAc (100 mL*3). The combined extracts were dried over Na2SO4, filtered and concentrated in vacuo to give trans-4-(2-hydroxypropan-2-yl)cyclohexanol (0.88 g, 96%) as a yellow solid.

1. customThe mixture was quenched by the addition of NH4Cl (100 mL)
2. extractionextracted with EtOAc (100 mL*3)
3. dry with materialThe combined extracts were dried over Na2SO4
4. filtrationfiltered
5. concentrationconcentrated in vacuo