Hydrochloric Acid → 1-Hydroxy-9,10-dioxo-9,10-dihydroanthracen-2-yl acetate

HRID 229320

反応式

HRID 229320 の反応式
[CH:1]1[CH:6]=[C:5]2[C:7]([C:9]3[CH:16]=[CH:15][C:14]([OH:17])=[C:13]([OH:18])[C:10]=3[C:11](=[O:12])[C:4]2=[CH:3][CH:2]=1)=[O:8].[C:19](OC(=O)C)(=[O:21])[CH3:20].Cl>N1C=CC=CC=1>[CH3:20][C:19]([O:17][C:14]1[CH:15]=[CH:16][C:9]2[C:7](=[O:8])[C:5]3[CH:6]=[CH:1][CH:2]=[CH:3][C:4]=3[C:11](=[O:12])[C:10]=2[C:13]=1[OH:18])=[O:21]

参加物

5

反応物 3

HCID 313Hydrochloric AcidHCID 6293AlizarinHCID 7918Acetic Anhydride

生成物 1

HCID 155209421-Hydroxy-9,10-dioxo-9,10-dihydroanthracen-2-yl acetate

試薬・触媒・溶媒 1

HCID 1049Pyridine溶媒2 回

実験手順

This substrate was prepared using a method familiar to those skilled in the art. Two grams of Alizarin were dissolved in 5 ml of Pyridine and treated with a mixture of 2.5 ml of Acetic anhydride and 5 ml of Pyridine. After 16 hours at room temperature, the yellow solution was poured into 100 ml of hydrochloric acid containing ice. The precipitated Acetate was recovered by filtration with aspiration and then washed in water. Recrystallization from Acetone yielded 1.4 g of Alizarin-2-acetate in the form of yellow crystals.

後処理

  1. customThis substrate was prepared
  2. additioncontaining ice
  3. filtrationThe precipitated Acetate was recovered by filtration with aspiration
  4. washwashed in water
  5. customRecrystallization from Acetone

出典と根拠

ORDレコード
ord-ae12f970bfe34ad88172f73135b7942c
出典データセット
uspto-grants-2009_07
特許番号
US07563592B2

関連ノート

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