Trifluoroacetic acid → (7-methoxy-2-oxoquinoxalin-1(2H)-yl)acetaldehyde

HRID 2193109ノート

反応式

HRID 2193109 の反応式
FC(F)(F)C(O)=O.[O:8]1CCO[CH:9]1[CH2:13][N:14]1[C:23]2[C:18](=[CH:19][CH:20]=[C:21]([O:24][CH3:25])[CH:22]=2)[N:17]=[CH:16][C:15]1=[O:26]>>[CH3:25][O:24][C:21]1[CH:22]=[C:23]2[C:18]([N:17]=[CH:16][C:15](=[O:26])[N:14]2[CH2:13][CH:9]=[O:8])=[CH:19][CH:20]=1

参加物

3

反応物 2

HCID 6422Trifluoroacetic acidHCID 59397866HCID 59397866、化合物

生成物 1

HCID 59398142(7-methoxy-2-oxoquinoxalin-1(2H)-yl)acetaldehyde

実験手順

Into 40 mL of an 80% aqueous trifluoroacetic acid solution, 1.00 g of 1-(1,3-dioxolan-2-ylmethyl)-7-methoxyquinoxalin-2(1H)-one was dissolved, and the mixture was stirred at room temperature for 8 hours. The solvent was removed under reduced pressure, the reaction mixture was alkalified with an aqueous saturated sodium hydrogen carbonate solution, and then extracted with ethyl acetate. The organic layer was washed with an aqueous saturated sodium chloride solution, and dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure to obtain 236 mg of a pale yellow oily substance, (7-methoxy-2-oxoquinoxalin-1(2H)-yl)acetaldehyde.

後処理

  1. customThe solvent was removed under reduced pressure
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with an aqueous saturated sodium chloride solution
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customthe solvent was removed under reduced pressure

出典と根拠

ORDレコード
ord-a08fed37008445c18afaf698a522054f
出典データセット
uspto-grants-2012_12
特許番号
US08329694B2

反応ノート

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