反应详情

Methyl 1-[3-(trifluoromethyl)phenyl]piperidine-4-carboxylate (0.9 g, 3 mmol) was treated with the mixture of 2 M of sodium hydroxide in water (10 mL), THF (10 mL) and methanol (10 mL) at 50° C. for 1 h. After being neutralized with concentrated HCl (pH=3), the solution was concentrated. The resulting residue was azeotropically treated with benzene for 3 times to give the title compound which was used for the next reaction without purification. MS (M+H) 274.1.

1. concentrationthe solution was concentrated
2. additionThe resulting residue was azeotropically treated with benzene for 3 times