Ethanol → Ethyl 6-Aminonicotinate

HRID 85153

反応式

HRID 85153 の反応式
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([OH:10])=[O:9])=[CH:4][N:3]=1.O=S(Cl)Cl.[CH2:15](O)[CH3:16]>>[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([O:10][CH2:15][CH3:16])=[O:9])=[CH:4][N:3]=1

参加物

4

反応物 3

HCID 702EthanolHCID 184966-Aminonicotinic acidHCID 24386Thionyl Chloride

生成物 1

HCID 235927Ethyl 6-Aminonicotinate収率 94%

実験手順

To a solution of 2-amino-5-pyridinecarboxylic acid (98; 5.0 g, 36.2 mmol) in ethanol (100 mL) was added SOCl2 (8.6 g, 72.4 mmol) at 0° C. The resulting reaction mixture was stirred under reflux for 12 h. Upon cooling to room temperature, the reaction mixture was concentrated under reduced pressure and then enough saturated aqueous Na2CO3 solution was added to the reaction mixture to adjust the pH=9. The resulting solids were collected by filtration and dried to afford ethyl 6-aminonicotinate 99 (5.64 g, 94%).

後処理

  1. customThe resulting reaction mixture
  2. temperatureunder reflux for 12 h
  3. concentrationthe reaction mixture was concentrated under reduced pressure
  4. additionenough saturated aqueous Na2CO3 solution was added to the reaction mixture
  5. filtrationThe resulting solids were collected by filtration
  6. customdried

出典と根拠

ORDレコード
ord-3b5ab5f465944b598aefea8249ab03d3
出典データセット
uspto-grants-2014_09
特許番号
US08846947B2

関連ノート

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