1-Amino-2,4-dibromoanthraquinone → 1-Amino-2-bromo-6-chloro-4-hydroxyanthracene-9,10-dione

HRID 1789320

Reaction equation

HRID 1789320 reaction equation
[NH2:1][C:2]1[C:15]2[C:14](=[O:16])[C:13]3[C:8](=[CH:9][C:10]([Cl:17])=[CH:11][CH:12]=3)[C:7](=[O:18])[C:6]=2[C:5](Br)=[CH:4][C:3]=1[Br:20].B(O)(O)[OH:22].S(=O)(=O)(O)O.NC1C2C(=O)C3C(=CC=CC=3)C(=O)C=2C(Br)=CC=1Br>>[NH2:1][C:2]1[C:15]2[C:14](=[O:16])[C:13]3[C:8](=[CH:9][C:10]([Cl:17])=[CH:11][CH:12]=3)[C:7](=[O:18])[C:6]=2[C:5]([OH:22])=[CH:4][C:3]=1[Br:20]

Participants

4

Reactant 3

HCID 66811-Amino-2,4-dibromoanthraquinoneHCID 19707713Boric acid sulfuric acidHCID 201880531-Amino-2,4-dibromo-6-chloroanthraquinone

Product 1

HCID 201880691-Amino-2-bromo-6-chloro-4-hydroxyanthracene-9,10-dione

Procedure

When 104 g of 1-amino-2,4-dibromo-6-chloroanthraquinone (preparation see Example 467a) are treated with boric acid/sulphuric acid according to the procedure for 1-amino-2,4-dibromoanthraquinone in BIOS 1484, page 5, then 83.9 g, corresponding to 95% of theory, of 1-amino-2-bromo-4-hydroxy-6-chloroanthraquinone are obtained.

Sources & evidence

ORD record
ord-ae0d07ead4c04e6a8c070aef170e9faf
Source dataset
uspto-grants-1987_08
Patent number
US04689171

Linked notes

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