m-Chloroperbenzoic acid → tert-Butyl 2-(2-pyridyl)ethylcarbamate N-oxide
反応式
[N:1]1[CH:6]=[CH:5][CH:4]=[CH:3][C:2]=1[CH2:7][CH2:8][NH:9][C:10](=[O:16])[O:11][C:12]([CH3:15])([CH3:14])[CH3:13].ClC1C=CC=C(C(OO)=[O:25])C=1>C(OCC)(=O)C>[N:1]1[CH:6]=[CH:5][CH:4]=[CH:3][C:2]=1[CH2:7][CH2:8][NH+:9]([O-:25])[C:10](=[O:16])[O:11][C:12]([CH3:13])([CH3:15])[CH3:14]参加物
4
実験手順
tert-Butyl 2-(2-pyridyl)ethylcarbamate (18.5 g, 83 mmol) and 3-chloroperbenzoic acid (77%, 24.5 g, 109 mmol) were dissolved in ethyl acetate (200 ml), and the mixture was stirred at room temperature for 15 hrs. The solvent was evaporated, and the residue was subjected to a silica gel column chromatography. The fractions eluted with methanol-ethyl acetate (1:4, v/v) were collected and concentrated to give the titled compound (19.6 g, 99%).