Ethanol → Ethyl 6-Aminonicotinate

HRID 85153

반응식

HRID 85153 반응식
[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

참가 물질

4

반응물 3

HCID 702EthanolHCID 184966-Aminonicotinic acidHCID 24386Thionyl Chloride

생성물 1

HCID 235927Ethyl 6-Aminonicotinate수율 94%

실험 절차

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%).

후처리

  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

출처 및 근거

ORD 기록
ord-3b5ab5f465944b598aefea8249ab03d3
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08846947B2

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