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

HRID 1649120노트

반응식

HRID 1649120 반응식
[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]

참가 물질

7

반응물 3

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

생성물 1

HCID 122007746,7-Diacetoxychromone-3-carboxylic acid

시약·촉매·용매 3

HCID 180Acetone용매HCID 962Water용매HCID 1118Sulfuric Acid용매

실험 절차

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.

후처리

  1. customhad been previously prepared

출처 및 근거

ORD 기록
ord-b413cf0a64e44e329959c23e7990feaf
출처 데이터셋
uspto-grants-1983_11
특허 번호
US04415567

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