Sodium Hydroxide → 1-Aminoanthraquinone

HRID 1973439

Reaction equation

HRID 1973439 reaction equation
[NH:1]([C:5]1[C:18]2[C:17](=[O:19])[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[C:10](=[O:20])[C:9]=2[CH:8]=[CH:7][CH:6]=1)C(C)=O.[OH-].[Na+]>CO>[NH2:1][C:5]1[C:18]2[C:17](=[O:19])[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[C:10](=[O:20])[C:9]=2[CH:8]=[CH:7][CH:6]=1

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 76760N-Anthraquinon-1-ylacetamide

Product 1

HCID 67101-AminoanthraquinoneYield 95%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

363 g (1.37 moles) of 1-acetamino-anthraquinone are warmed with 3.5 kg of methanol and 150 ml of concentrated sodium hydroxide solution (d = 1.48) in a stainless steel autoclave for 3 hours at 85° C. After cooling to room temperature, the red suspension is suction filtered. The residue on the suction filter is washed with hot water until the filtrate has a neutral reaction. After drying, 290 g of 1-amino-anthraquinone are obtained (yield: 95%). Degree of purity: 98 to 99%.

Workup

  1. filtrationsuction filtered
  2. filtrationThe residue on the suction filter
  3. washis washed with hot water until the filtrate
  4. customa neutral reaction
  5. customAfter drying

Sources & evidence

ORD record
ord-6a14cf3057ff4a759312c74504096986
Source dataset
uspto-grants-1976_12
Patent number
US03997573

Linked notes

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