m-Chloroperbenzoic acid → tert-Butyl 2-pyridylcarbamate N-oxide

HRID 748317ノート

反応式

HRID 748317 の反応式
[N:1]1[CH:6]=[CH:5][CH:4]=[CH:3][C:2]=1[NH:7][C:8](=[O:14])[O:9][C:10]([CH3:13])([CH3:12])[CH3:11].ClC1C=CC=C(C(OO)=[O:23])C=1>C(OCC)(=O)C>[N:1]1[CH:6]=[CH:5][CH:4]=[CH:3][C:2]=1[NH+:7]([O-:23])[C:8](=[O:14])[O:9][C:10]([CH3:11])([CH3:13])[CH3:12]

参加物

4

反応物 2

HCID 70297m-Chloroperbenzoic acidHCID 112063492-(Boc-amino)pyridine

生成物 1

HCID 86596466tert-Butyl 2-pyridylcarbamate N-oxide収率 95.1%

試薬・触媒・溶媒 1

HCID 8857Ethyl Acetate溶媒

実験手順

tert-Butyl 2-pyridylcarbamate (7.4 g, 38 mmol) and 3-chloroperbenzoic acid (77%, 11.2 g, 50 mmol) were dissolved in ethyl acetate (100 ml), and the mixture was stirred at room temperature for 20 hrs. The solvent was evaporated, and the residue was subjected to a silica gel column chromatography. The fractions eluted with methanol-ethyl acetate (1:20, v/v) were collected and concentrated to give the titled compound (7.6 g, 95%).

後処理

  1. customThe solvent was evaporated
  2. washThe fractions eluted with methanol-ethyl acetate (1:20
  3. customv/v) were collected
  4. concentrationconcentrated

出典と根拠

ORDレコード
ord-894e8f642a7f4c4b88c105b4c7bc4f9c
出典データセット
uspto-grants-2008_07
特許番号
US07399759B2

反応ノート

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