Sulfuric Acid → HCID 20474966, compound

HRID 2295304Notes

Reaction equation

HRID 2295304 reaction equation
OS(O)(=O)=O.O=S(=O)=O.[N+:10]([C:13]1[C:26]2[C:25](=[O:27])[C:24]3[C:19](=[C:20]([N+:28]([O-])=O)[CH:21]=[CH:22][CH:23]=3)[C:18](=[O:31])[C:17]=2[CH:16]=[CH:15][CH:14]=1)([O-:12])=[O:11].S(=O)(=O)(O)[OH:33]>O>[OH:33][C:23]1[C:24]2[C:25](=[O:27])[C:26]3[C:17](=[CH:16][CH:15]=[CH:14][C:13]=3[N+:10]([O-:12])=[O:11])[C:18](=[O:31])[C:19]=2[C:20]([NH2:28])=[CH:21][CH:22]=1

Participants

5

Reactant 3

HCID 1118Sulfuric AcidHCID 67059,10-Anthracenedione, 1,5-dinitro-HCID 24681Fuming sulfuric acid

Product 1

HCID 20474966HCID 20474966, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Procedure

A mixture of 300 parts of 28% strength oleum and 30 parts of 1,5-dinitroanthraquinone are stirred for 3 hours at 50° to 60° C. After the addition of 85.5 parts of 78% strength sulphuric acid and 165 parts of water with cooling the reaction mixture is stirred for 6 hours at room temperature and then left to stand overnight. The mixture is added to 1,000 parts of water, and the product is filtered off with suction and washed with water until neutral. After drying, 23.3 parts of crude 1-hydroxy-4-amino-8-nitroanthraquinone are obtained, which can be purified by recrystallisation from dimethylformamide.

Workup

  1. temperaturewith cooling the reaction mixture
  2. stirringis stirred for 6 hours at room temperature
  3. waitleft
  4. waitto stand overnight
  5. filtrationthe product is filtered off with suction
  6. washwashed with water until neutral
  7. customAfter drying

Sources & evidence

ORD record
ord-e1ff85dc7cfe45daadf22f46649bd801
Source dataset
uspto-grants-1984_01
Patent number
US04424160

Reaction notes

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