Triphenylphosphine → (R)-tert-butyl 3-((R)-(2-aminoethoxy)(3-chlorophenyl)methyl)piperidine-1-carboxylate
反応式
[N:1]([CH2:4][CH2:5][O:6][C@@H:7]([C:21]1[CH:26]=[CH:25][CH:24]=[C:23]([Cl:27])[CH:22]=1)[C@@H:8]1[CH2:13][CH2:12][CH2:11][N:10]([C:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15])[CH2:9]1)=[N+]=[N-].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>C1COCC1.O>[NH2:1][CH2:4][CH2:5][O:6][C@@H:7]([C:21]1[CH:26]=[CH:25][CH:24]=[C:23]([Cl:27])[CH:22]=1)[C@@H:8]1[CH2:13][CH2:12][CH2:11][N:10]([C:14]([O:16][C:17]([CH3:20])([CH3:18])[CH3:19])=[O:15])[CH2:9]1参加物
4
実験手順
To a solution of (R)-tert-Butyl 3-((R)-(2-azidoethoxy)(3-chlorophenyl)methyl)piperidine-1-carboxylate (13.3 g, 33.8 mmol) in THF/H2O (20:1, 180 mL/9 mL), triphenylphosphane (36.0 g, 135 mmol) was added in portions. The reaction mixture was stirred overnight at rt. The solvent was removed under reduced pressure to afford a residue, which was purified on silica gel chromatography to provide (R)-tert-butyl 3-((R)-(2-aminoethoxy)(3-chlorophenyl)methyl)piperidine-1-carboxylate (10.4 g, purity: HPLC=75%).