Acetic Anhydride → Furo[3,4-b]pyridine-5,7-dione, 3-ethyl-

HRID 2372186노트

반응식

HRID 2372186 반응식
[CH2:1]([C:3]1[CH:4]=[C:5]([C:12]([OH:14])=[O:13])[C:6]([C:9]([OH:11])=O)=[N:7][CH:8]=1)[CH3:2].C(OC(=O)C)(=O)C>>[CH2:1]([C:3]1[CH:4]=[C:5]2[C:12](=[O:13])[O:14][C:9](=[O:11])[C:6]2=[N:7][CH:8]=1)[CH3:2]

참가 물질

3

반응물 2

HCID 7918Acetic AnhydrideHCID 1136065-Ethylquinolinic acid

생성물 1

HCID 10921053Furo[3,4-b]pyridine-5,7-dione, 3-ethyl-

실험 절차

A mixture of the above carboxylic acid (3.0 g, 15.37 mmol) and acetic anhydride (15 ml) is heated until the acid is dissolved. The mixture is then concentrated under vacuum, and the residue is dissolved in ether, stirred, filtered, concentrated and dried to give 5-ethyl-2,3-pyridinedicarboxylic anhydride.

후처리

  1. temperatureis heated until the acid
  2. dissolutionis dissolved
  3. concentrationThe mixture is then concentrated under vacuum
  4. dissolutionthe residue is dissolved in ether
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customdried

출처 및 근거

ORD 기록
ord-d82fc0977ebc4fc68d0126da10d28e86
출처 데이터셋
uspto-grants-1992_03
특허 번호
US05098462

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