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+]>O>[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]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
363 g (1.37 moles) of 1-acetamino-anthraquinone are warmed with 3.5 l of water and 130 ml of concentrated sodium hydroxide solution (d = 1.48) in a stainless steel autoclave for 5 hours at 150° C. After cooling to room temperature, the red suspension is filtered. The residue is washed with hot water until neutral. After drying, 300 g of 1-amino-anthraquinone are obtained (yield: 98%). Degree of purity: 97 to 98%.
Workup
- filtrationthe red suspension is filtered
- washThe residue is washed with hot water until neutral
- customAfter drying
Sources & evidence
- ORD record
- ord-15b88242441b4cc6a49b22556bbd0f6b
- Source dataset
- uspto-grants-1976_12
- Patent number
- US03997573
Linked notes
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