Water → tert-Butyl [(4-fluoropiperidin-4-yl)methyl]carbamate

Participants

Reaction Steps

A mixture of N-benzoyl-4-tert-butoxycarbonylaminomethyl-4-fluoro piperidine (step 3 of Example 15) (4.42 g, 13.1 mmol), NaOH (2.62 g, 65.5 mmol), H2O (9.00 mL) and ethanol (90.0 mL) was refluxed for 15 h and concentrated in vacuo. To the resulting residue were added water and chloroform. The organic layer was separated, dried over magnesium sulfate, and concentrated under reduced pressure. Recrystallization of the resulting solid with hexane-CH2Cl2 afforded colorless solid 1.77 g (58%) as the title compound.

Provenance & Evidence