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

HRID 229320

반응식

HRID 229320 반응식
[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]

참가 물질

5

반응물 3

HCID 313Hydrochloric AcidHCID 6293AlizarinHCID 7918Acetic Anhydride

생성물 1

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

시약·촉매·용매 1

HCID 1049Pyridine용매2회

실험 절차

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.

후처리

  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

출처 및 근거

ORD 기록
ord-ae12f970bfe34ad88172f73135b7942c
출처 데이터셋
uspto-grants-2009_07
특허 번호
US07563592B2

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