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Methylamine → 4-Chloro-5-fluoro-2-(N-methylaminomethyl)-pyridine

HRID 1866
ノート
印刷プレビュー

反応式

HRID 1866 の反応式
[Cl:1][C:2]1[C:7]([F:8])=[CH:6][NH:5][C:4](Br)([CH3:9])[CH:3]=1.[CH3:11][NH2:12]>CO>[Cl:1][C:2]1[C:7]([F:8])=[CH:6][N:5]=[C:4]([CH2:9][NH:12][CH3:11])[CH:3]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

4

反応物 2

HCID 6329MethylamineHCID 867500424-Chloro-5-fluoro-alpha-bromo-2-picoline

生成物 1

HCID 196914964-Chloro-5-fluoro-2-(N-methylaminomethyl)-pyridine収率 70%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

実験手順

4-Chloro-5-fluoro-alpha-bromo-2-picoline (1.37 g, 6.1 mmol), from Step 1 was dissolved in 15 mL of methanol in a pressure tube. Methylamine (3 mL of 40% aqueous solution) was added to the tube and the tube was sealed. The reaction mixture was stirred at ambient temperature for 26 hours and then the solvent was removed under reduced pressure. To the residue was added 50 mL of 10% aqueous sodium carbonate solution and the resultant aqueous mixture was extracted with 3 X 50 mL of methylene chloride. The organic combined extract was dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressur. The residue was dried in vacuo to give 754 mg g (70% yield) of the title compound; MS DCI-NH3M/Z: 175 (M+H)+ base; 1H NMR (CDCl3) d 2.50 (s, 3H), 3.90 (s, 2H), 7.47 (d, 1H), 8.42 (s, 1H).

後処理

  1. customthe tube was sealed
  2. customthe solvent was removed under reduced pressure
  3. additionTo the residue was added 50 mL of 10% aqueous sodium carbonate solution
  4. extractionthe resultant aqueous mixture was extracted with 3 X 50 mL of methylene chloride
  5. extractionThe organic combined extract
  6. dry with materialwas dried over anhydrous sodium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated under reduced pressur
  9. customThe residue was dried in vacuo

出典と根拠

ORDレコード
ord-a310f335f3e844efadd43206c4a310e4
出典データセット
uspto-grants-1998_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05726182

反応ノート

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