반응 #44003

ord-bd35a0be3e80496ca7c11048f53668f9

반응 조건

상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    세척washed with water (3×50 mL), sat. NaHCO3 (2×50 mL), brine (50 mL)
  2. 2
    건조dried (MgSO4)
  3. 3
    기타The solvent was removed by rotary evaporation

실험 절차

Methyl 2-aminobutanoate hydrochloride 56 (25 g, 0.163 mol) was suspended in CH2Cl2 (100 mL) and triethylamine (50 mL) and 4-chlorobenzenesulfonyl chloride (37.8 g, 1.1 eq) were added to the mixture. The mixture was stirred at room temperature overnight. Diluted with 200 mL of CH2Cl2 and washed with water (3×50 mL), sat. NaHCO3 (2×50 mL), brine (50 mL) and dried (MgSO4). The solvent was removed by rotary evaporation to give the product 57 as a yellow oil. LCMS 292.0 (M+H).

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US07732609B2uspto-grants-2010_06