Sulfuric Acid → Purpurin anthraquinone

HRID 400327

반응식

HRID 400327 반응식
S(=O)(=O)(O)[OH:2].[CH:6]1[CH:11]=[C:10]2[C:12]([C:14]3[CH:21]=[CH:20][C:19]([OH:22])=[C:18]([OH:23])[C:15]=3[C:16](=[O:17])[C:9]2=[CH:8][CH:7]=1)=[O:13]>[O-2].[O-2].[Mn+4].O>[CH:6]1[CH:7]=[CH:8][C:9]2[C:16](=[O:17])[C:15]3[C:18]([OH:23])=[C:19]([OH:22])[CH:20]=[C:21]([OH:2])[C:14]=3[C:12](=[O:13])[C:10]=2[CH:11]=1

참가 물질

5

반응물 2

HCID 1118Sulfuric Acid2회HCID 6293Alizarin

생성물 1

HCID 6683Purpurin anthraquinone

시약·촉매·용매 2

HCID 178418406HCID 178418406, 화합물촉매HCID 962Water용매2회

반응 조건

온도
10 °C

실험 절차

A suspension of 17.5 g of manganese dioxide/40 g of concentrated sulfuric acid, that had been prepared by putting 9.0 g of water and 130 g of 96% sulfuric acid into 30 g of alizarin (manufactured by Sigma-Aldrich Corporation), followed by ice-cooling, was added over 1 hour to a reaction liquid while maintaining it at 10° C. or lower. After 2 hours, the reaction liquid was poured into 1 L of water, with the inside of the container being washed with 400 mL of water, and filtered. The crystal collected by filtration was washed with 300 mL of methanol and dried to obtain 32.4 g of purpurin.

후처리

  1. customhad been prepared
  2. temperaturecooling
  3. additionwas added over 1 hour to a reaction liquid
  4. customthe reaction liquid
  5. washbeing washed with 400 mL of water
  6. filtrationfiltered
  7. filtrationThe crystal collected by filtration
  8. washwas washed with 300 mL of methanol
  9. customdried

출처 및 근거

ORD 기록
ord-3f0738e119114fdcbc6b23a076db3b5d
출처 데이터셋
uspto-grants-2014_06
특허 번호
US08741513B2

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