(3,4-Dimethoxyphenyl)(3-nitrophenyl)methanone → (3-Aminophenyl)(3,4-dimethoxyphenyl)methanone

HRID 583452ノート

反応式

HRID 583452 の反応式
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:17]=[CH:18][C:19]=1[O:20][CH3:21])[C:6]([C:8]1[CH:13]=[CH:12][CH:11]=[C:10]([N+:14]([O-])=O)[CH:9]=1)=[O:7].[H][H]>C(OCC)(=O)C.[Pd]>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:17]=[CH:18][C:19]=1[O:20][CH3:21])[C:6]([C:8]1[CH:13]=[CH:12][CH:11]=[C:10]([NH2:14])[CH:9]=1)=[O:7]

参加物

5

反応物 2

HCID 10803185(3,4-Dimethoxyphenyl)(3-nitrophenyl)methanoneHCID 178418361HCID 178418361、化合物

生成物 1

HCID 10563087(3-Aminophenyl)(3,4-dimethoxyphenyl)methanone収率 38.9%

試薬・触媒・溶媒 2

HCID 23938Palladium触媒HCID 8857Ethyl Acetate溶媒

実験手順

To a solution of 3,4-dimethoxy-3'-nitrobenzophenone (0.5 g, 1.7 mmol) in 40 mL of ethyl acetate was added 0.05 g of 10% palladium on carbon catalyst. The mixture was hydrogenated in a Parr-Shaker apparatus at 55-60 psi of hydrogen for 1.5 hours. The reaction mixture was filtered through celite and the filtrate was concentrated in vacuo to afford the crude product. The crude product was purified by flash column chromatography (silica gel, 10% ethyl acetate/methylene chloride) to afford 0.17 g (38%) of the product as a yellow solid: mp 157-175 ° C.; 1H NMR (CDCl3) δ 7.56-6.80 (m, 7H); 3.95 (s, 3H), 3.94 (s, 3H); 13C NMR (CDCl3) δ 195.7, 152.9, 148.9, 146.4, 139.3, 130.3, 128.9, 125.4, 120.1, 118.4, 115.6, 112.1, 109.7, 56.0, 56.0; Anal. Calcd for C15H15NO3. Theoretical: C, 70.02; H, 5.88; N, 5.44. Found: C, 70.00; H, 6.10; N, 5.13.

後処理

  1. filtrationThe reaction mixture was filtered through celite
  2. concentrationthe filtrate was concentrated in vacuo
  3. customto afford the crude product
  4. customThe crude product was purified by flash column chromatography (silica gel, 10% ethyl acetate/methylene chloride)

出典と根拠

ORDレコード
ord-ee0daf8844ac4f859df3bfdc8fe1432a
出典データセット
uspto-grants-1999_07
特許番号
US05929117

反応ノート

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