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

HRID 2372186ノート

反応式

HRID 2372186 の反応式
[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]

参加物

3

反応物 2

HCID 7918Acetic AnhydrideHCID 1136065-Ethylquinolinic acid

生成物 1

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

実験手順

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.

後処理

  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

出典と根拠

ORDレコード
ord-d82fc0977ebc4fc68d0126da10d28e86
出典データセット
uspto-grants-1992_03
特許番号
US05098462

反応ノート

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