反応 #806595

ord-8079f1c9735d444f9669e37329b52d37

反応条件

詳細条件
See reaction.notes.procedure_details.

後処理

  1. 1
    温度at reflux overnight under nitrogen
  2. 2
    抽出The reaction mixture was extracted 3 times with dichloromethane
  3. 3
    洗浄the combined organic layers were washed with brine
  4. 4
    乾燥dried over potassium carbonate
  5. 5
    濃縮The sample was concentrated on a rotary evaporator
  6. 6
    その他the resulting oil was dried overnight under vacuum

実験手順

To 101 (6.03 g, 20.0 mmol) dissolved in acetone (75 mL) was added a solution of 1-aminohomopiperidine (2.3 mL, 20.0 mmol) in acetone (10 mL) followed by addition of NaOH (8.0 mL 2.5 N NaOH solution, 20.0 mmol) and 20 mL of water. The reaction mixture was allowed to stir at reflux overnight under nitrogen. The reaction mixture was extracted 3 times with dichloromethane; the combined organic layers were washed with brine and dried over potassium carbonate. The sample was concentrated on a rotary evaporator and the resulting oil was dried overnight under vacuum. Column chromatography (96:3:1 dichloromethane:methanol:conc. ammonium hydroxide) yielded a light purple solid 152 (1.2 g, 16%), mp 139° C.; TLC (silica gel, 96:3:1, CH2Cl2, CH3OH, conc. NH4OH), Rf 0.31; HPLC: Inertsil ODS-3V C18, 40:30:30 [KH2PO4 (0.01M, pH 3.2):CH3OH:CH3CN], 264 nm, Rt 52.5 min, 94.9% purity; MS (ESI): m/z 383 (M+H, 100).

出典

DOI: 10.6084/m9.figshare.5104873.v1特許: US07132423B2uspto-grants-2006_11