Naphthalene → Anthraquinone

HRID 894477

반응식

HRID 894477 반응식
[CH2:1]1[C:14]2[C:13](=[O:15])[C:12]3[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=3)[C:6](=[O:16])[C:5]=2[CH2:4][CH2:3][CH2:2]1.C1C2C(=CC=CC=2)C=CC=1>>[CH:8]1[C:7]2[C:6](=[O:16])[C:5]3[C:14](=[CH:1][CH:2]=[CH:3][CH:4]=3)[C:13](=[O:15])[C:12]=2[CH:11]=[CH:10][CH:9]=1

참가 물질

3

반응물 2

HCID 931Naphthalene2회HCID 219295Tetrahydroanthraquinone2회

생성물 1

HCID 6780Anthraquinone

실험 절차

In the process according to U.S. Pat. No. 2,938,913, the mixture which is present after the Diels-Alder reaction and which contains tetrahydroanthraquinone, solvent and naphthalene is first treated with aqueous alkali, an aqueous alkaline solution of salts of tetrahydroanthraquinone and a mixture of solvent and naphthalene being obtained. Crude solid anthraquinone is isolated from the solution containing the salts of tetrahydroanthraquinone by passing air through this solution and filtering off the anthraquinone which precipitates out. The mixture of naphthalene and the solvent is separated, by distillation, into the components, which can then be re-used in the anthraquinone synthesis.

후처리

  1. customafter the Diels-Alder reaction and which
  2. additionis first treated with aqueous alkali
  3. customobtained

출처 및 근거

ORD 기록
ord-a777f0fc97bc4182b784ca51162140ba
출처 데이터셋
uspto-grants-1981_08
특허 번호
US04284576

연결된 노트

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