反应详情

Ethyl 4-hydroxy-1-methylcyclohexanecarboxylate (Intermediate 67, 930 mg, 4.99 mmol), triphenylphosphine (3.143 g, 11.98 mmol), and phthalimide (882 mg, 5.99 mmol) were dissolved in 60 mL of THF. DIAD (2.33 mL, 11.98 mmol) was then added and the reaction mixture was stirred overnight at room temperature. The mixture was concentrated under vacuum, and the residue was chromatographed on silica gel using an ethyl acetate/heptane gradient. The title compound (1 g) was obtained as a clear oil.

1. concentrationThe mixture was concentrated under vacuum
2. customthe residue was chromatographed on silica gel using an ethyl acetate/heptane gradient