tert-Butyl 4-oxopiperidine-1-carboxylate → HCID 58551780, compound

Participants

Reaction Conditions

Reaction Steps

1-(2-Fluorophenyl)imidazole (484 mg, 2.99 mmol) was dissolved in a tetrahydrofuran (5 mL) under an atmosphere of argon. The reaction mixture was cooled to −78° C. n-Butyllithium (2.2 mL of 1.6 M, 3.58 mmol) in hexanes was slowly added and the resulting mixture was stirred at −78° C. for 1 hour. tert-Butyl 4-oxopiperidine-1-carboxylate (892.2 mg, 4.48 mmol) was then added as a solution in tetrahydrofuran (2 mL). The reaction mixture was allowed to slowly warm to room temperature and stir for 10 days. The crude material was evaporated to dryness and taken to the next step without further purification. ESI-MS m/z calc. 361.2. found 362.1 (M+1)+. Retention time 1.12 minutes (3 min run).

Provenance & Evidence