Naphthalene → Anthraquinone

HRID 894477

反応式

HRID 894477 の反応式
[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

参加物

3

反応物 2

HCID 931Naphthalene2 回HCID 219295Tetrahydroanthraquinone2 回

生成物 1

HCID 6780Anthraquinone

実験手順

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.

後処理

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

出典と根拠

ORDレコード
ord-a777f0fc97bc4182b784ca51162140ba
出典データセット
uspto-grants-1981_08
特許番号
US04284576

関連ノート

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