반응 #366106

ord-0b30e47a03f44611bad6c3265a653ad2

반응 조건

상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    기타before quenching with aqueous NaHCO3 (30 mL)
  2. 2
    추출Extracted with EtOAc (3×50 mL)
  3. 3
    건조dried (MgSO4)
  4. 4
    농축concentrated to a residue which
  5. 5
    기타was purified by flash chromatography (EtOAc: Hexanes 9:1 to 1:1 )

실험 절차

To a suspension of 4-piperidinone monohydrate hydrochloride (2.00 g, 13.28 mmol) in CH2Cl2 (40 mL) and triethylamine (5.0 mL) was added 2,4-difluorobenzoyl chloride (2.84 g, 15.93 mmol). The resulting mixture was stirred at room temperature for 5 hours before quenching with aqueous NaHCO3 (30 mL). Extracted with EtOAc (3×50 mL), dried (MgSO4), and concentrated to a residue which was purified by flash chromatography (EtOAc: Hexanes 9:1 to 1:1 ) afford product as an oil (2.25 g, 71%).

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US06362182B1uspto-grants-2002_03