Quinoline → 4-Chloro-6-(trifluoromethyl)pyrimidine

HRID 270585

反応式

HRID 270585 の反応式
[F:1][C:2]([F:11])([F:10])[C:3]1[N:8]=[CH:7][N:6]=[C:5](O)[CH:4]=1.P(Cl)(Cl)([Cl:14])=O.N1C2C(=CC=CC=2)C=CC=1>C1(C)C=CC=CC=1.O>[Cl:14][C:5]1[CH:4]=[C:3]([C:2]([F:11])([F:10])[F:1])[N:8]=[CH:7][N:6]=1

参加物

6

反応物 3

HCID 7047QuinolineHCID 24813Phosphorus oxychlorideHCID 178516143HCID 178516143、化合物

生成物 1

HCID 115428814-Chloro-6-(trifluoromethyl)pyrimidine収率 21.6%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 1140Toluene溶媒

実験手順

A solution of 6-(trifluoromethyl)pyrimidin-4-ol (5.0 g, 30.5 mmol), phosphoryl chloride (3.41 mL, 36.6 mmol), and quinoline (2.16 mL, 18.3 mmol) in toluene (50 mL) was stirred at 100° C. for 5 h. The reaction was diluted with water and extracted with ethyl acetate three times, dried with sodium sulfate, filtered, and concentrated in vacuo. The crude residue was purified by flash column chromatography (10% EtOAc/Hexane) to yield the desired product (1.20 g, 21.6%). 1H NMR (400 MHz, CDCl3): 9.21 ppm (1H, s), 7.78 (1H, s).

後処理

  1. extractionextracted with ethyl acetate three times
  2. dry with materialdried with sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe crude residue was purified by flash column chromatography (10% EtOAc/Hexane)

出典と根拠

ORDレコード
ord-3e5f1f6159c54f4cab0d37db18e59b29
出典データセット
uspto-grants-2008_11
特許番号
US07449467B2

関連ノート

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