O-Phenylenediamine → N-(2-aminophenyl)-4-chlorobenzenesulfonamide

HRID 730213ノート

反応式

HRID 730213 の反応式
[C:1]1([NH2:8])[CH:6]=[CH:5][CH:4]=[CH:3][C:2]=1[NH2:7].[Cl:9][C:10]1[CH:15]=[CH:14][C:13]([S:16](Cl)(=[O:18])=[O:17])=[CH:12][CH:11]=1>C(Cl)Cl.N1C=CC=CC=1>[NH2:7][C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][C:1]=1[NH:8][S:16]([C:13]1[CH:14]=[CH:15][C:10]([Cl:9])=[CH:11][CH:12]=1)(=[O:18])=[O:17]

参加物

5

反応物 2

HCID 7243O-PhenylenediamineHCID 73984-Chlorobenzenesulfonyl chloride

生成物 1

HCID 241359N-(2-aminophenyl)-4-chlorobenzenesulfonamide収率 84.9%

試薬・触媒・溶媒 2

HCID 1049Pyridine溶媒HCID 6344Dichloromethane溶媒2 回

実験手順

To a solution of o-phenylenediamine (4 mmol) in DCM (20 mL) and pyridine (4 mL) at 0° C., 4-chlorobenzenesulfonyl chloride (4.4 mmol) was added in small portions. The reaction mixture was then gradually warmed to RT with stirring continued until the reaction was complete as determined by TLC or LC-MS. The reaction mixture was then diluted with DCM (20 mL). The organic phase was washed with water (2×20 mL) and 20 mL of brine. The organic phase was dried over anhydrous sodium sulfate and concentrated under vacuum. The residue obtained was purified by flash column chromatography eluting with DCM/EtOAc to give 960 mg of N-(2-aminophenyl)-4-chlorobenzenesulfonamide. LC: Tr 0.92 min, MS: 284.0 (M+1)+.

後処理

  1. washThe organic phase was washed with water (2×20 mL) and 20 mL of brine
  2. dry with materialThe organic phase was dried over anhydrous sodium sulfate
  3. concentrationconcentrated under vacuum
  4. customThe residue obtained
  5. customwas purified by flash column chromatography
  6. washeluting with DCM/EtOAc

出典と根拠

ORDレコード
ord-8df9621de0e3434b970c652dd0018076
出典データセット
uspto-grants-2009_09
特許番号
US07582673B2

反応ノート

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