Chromic Acid → 6,7-Diacetoxychromone-3-carboxylic acid

HRID 67090

反応式

HRID 67090 の反応式
[C:1]([O:4][C:5]1[CH:6]=[C:7]2[C:12](=[CH:13][C:14]=1[O:15][C:16](=[O:18])[CH3:17])[O:11][CH:10]=[C:9]([CH:19]=[O:20])[C:8]2=[O:21])(=[O:3])[CH3:2].CC(C)=[O:24].OS(O)(=O)=O.O=[Cr](=O)=O.[Cr](O)(O)(=O)=O>CC(C)=O.S(=O)(=O)(O)O.O>[C:1]([O:4][C:5]1[CH:6]=[C:7]2[C:12](=[CH:13][C:14]=1[O:15][C:16](=[O:18])[CH3:17])[O:11][CH:10]=[C:9]([C:19]([OH:24])=[O:20])[C:8]2=[O:21])(=[O:3])[CH3:2]

参加物

7

反応物 3

HCID 24425Chromic AcidHCID 122007726,7-Bis-(acetyloxy)-4-oxo-4H-1-benzopyran-3-carboxaldehydeHCID 131709961Jones' reagent

生成物 1

HCID 122007746,7-Diacetoxychromone-3-carboxylic acid

試薬・触媒・溶媒 3

HCID 180Acetone溶媒HCID 962Water溶媒HCID 1118Sulfuric Acid溶媒

実験手順

6,7-Diacetoxychromone-3-carboxaldehyde (17.8 g) was dissolved in acetone (1 liter). To this solution was added dropwise with stirring Jones reagent (32.8 ml) which had been previously prepared by dissolving chromic acid (133.6 g) in concentrated sulfuric acid (115 ml) diluted with water to a volume of 500 ml.

後処理

  1. customhad been previously prepared

出典と根拠

ORDレコード
ord-1797cad0a35a4ba999469932486ad23a
出典データセット
uspto-grants-1982_08
特許番号
US04344944

関連ノート

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