8-Methylquinoline → 8-Methyl-5-nitroquinoline

HRID 751060

反応式

HRID 751060 の反応式
[CH3:1][C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:11]=1[N:10]=[CH:9][CH:8]=[CH:7]2.[N+:12]([O-])([O-:14])=[O:13].[K+]>OS(O)(=O)=O>[CH3:1][C:2]1[CH:3]=[CH:4][C:5]([N+:12]([O-:14])=[O:13])=[C:6]2[C:11]=1[N:10]=[CH:9][CH:8]=[CH:7]2

参加物

4

反応物 2

HCID 119108-MethylquinolineHCID 24434Potassium Nitrate

生成物 1

HCID 2463008-Methyl-5-nitroquinoline収率 94%

試薬・触媒・溶媒 1

HCID 1118Sulfuric Acid溶媒

実験手順

To a solution of commercially available 8-methylquinoline (5.0 g, 34 mmol) in concentrated H2SO4 (19 mL) at 0° C. was added portionwise KNO3 (4.29 g, 42.4 mmol). After the addition, the reaction was stirred at rt for 17 h, then poured into ice/water and extracted with EtOAc (3×100 mL). The aqueous layer was basified to pH=9 with solid Na2CO3 and extracted with EtOAc (2×100 mL). The combined extracts were washed with brine, dried (Na2SO4), filtered and concentrated under reduced pressure. The residue was chromatographed (silica gel) to yield the title compound (5.98 g, 94%) as a light yellow solid. LC/MS m/z 189 [M+H]+.

後処理

  1. additionAfter the addition
  2. extractionextracted with EtOAc (3×100 mL)
  3. extractionextracted with EtOAc (2×100 mL)
  4. washThe combined extracts were washed with brine
  5. dry with materialdried (Na2SO4)
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customThe residue was chromatographed (silica gel)

出典と根拠

ORDレコード
ord-7ca05091e8f4426e998fd20961bdae50
出典データセット
uspto-grants-2008_07
特許番号
US07405234B2

関連ノート

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