反应详情

To a stirred solution of 1-Boc-1,2,3,6-tetrahydro-4-[(trifluoromethyl)sulfonyloxy]pyridine (74.84 g, 226 mmol) in N,N-dimethylformamide (60 mL) was added triethylamine (4.2 mL, 30.2 mmol), palladium acetate (0.100 g, 0.45 mmol), triphenylphosphine (0.235 g, 0.9 mmol), and methanol (24.5 mL) and the solution was placed under an atmosphere of carbon monoxide. After stirring for 48 h, the solvent was removed in vacuo. The residue was chromatographed over silica gel, eluting with 5–10% ethyl acetate in hexane. The product containing fractions were combined and concentrated in vacuo to give 2.35 g (65%) of the title compound as a clear oil.

1. customthe solvent was removed in vacuo
2. customThe residue was chromatographed over silica gel
3. washeluting with 5–10% ethyl acetate in hexane
4. additionThe product containing fractions
5. concentrationconcentrated in vacuo