1-Nitroanthraquinone → Anthraquinone

HRID 1579664Notes

Reaction equation

HRID 1579664 reaction equation
[N+]([C:4]1[C:17]2[C:16](=[O:18])[C:15]3[C:10](=[CH:11][CH:12]=[CH:13][CH:14]=3)[C:9](=[O:19])[C:8]=2[CH:7]=[CH:6][CH:5]=1)([O-])=O.S([O-])([O-])=O.[Na+].[Na+]>O>[CH:11]1[C:10]2[C:9](=[O:19])[C:8]3[C:17](=[CH:4][CH:5]=[CH:6][CH:7]=3)[C:16](=[O:18])[C:15]=2[CH:14]=[CH:13][CH:12]=1

Participants

4

Reactant 2

HCID 67041-NitroanthraquinoneHCID 24437Sodium Sulfite

Product 1

HCID 6780Anthraquinone

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

50 g of a crude 1-nitroanthraquinone manufactured according to Example 1 are stirred, according to U.S. Pat. No. 2,302,729, with 10 g of sodium sulphite and 500 ml of water for 6 hours at the reflux temperature. After filtration, washing and drying, 40.4 g of 1-nitroanthraquinone of the composition indicated in Table A are isolated (representing 71% of theory, relative to anthraquinone employed).

Workup

  1. filtrationAfter filtration
  2. washwashing
  3. customdrying

Sources & evidence

ORD record
ord-c2adaee2628b405e98339ed05548da50
Source dataset
uspto-grants-1976_01
Patent number
US03931251

Reaction notes

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