Boric Acid → HCID 3915367, compound

HRID 2295300Notes

Reaction equation

HRID 2295300 reaction equation
[N+:1]([C:4]1[C:17]2[C:16](=[O:18])[C:15]3[C:10](=[CH:11][CH:12]=[CH:13][C:14]=3[N+:19]([O-:21])=[O:20])[C:9](=[O:22])[C:8]=2[CH:7]=[CH:6][CH:5]=1)([O-])=O.[OH:23]S(O)(=O)=O.O=S(=O)=O.B(O)(O)O.[S]>>[OH:23][C:7]1[C:8]2[C:9](=[O:22])[C:10]3[C:15](=[C:14]([N+:19]([O-:21])=[O:20])[CH:13]=[CH:12][CH:11]=3)[C:16](=[O:18])[C:17]=2[C:4]([NH2:1])=[CH:5][CH:6]=1

Participants

5

Reactant 4

HCID 7628Boric AcidHCID 24681Fuming sulfuric acidHCID 672101,8-Dinitro-9,10-anthraquinoneHCID 5362487Sulfur

Product 1

HCID 3915367HCID 3915367, compound

Conditions

Temperature
60 °C

Procedure

100 parts of 1,8-dinitroanthraquinone are added to a reaction mixture prepared from 1,000 parts of 20% strength oleum and 25 parts of boric acid. 15 parts of sulphur are then added at room temperature in the course of 25 minutes, and the reaction mixture is warmed to 60° C. and maintained at this temperature with stirring for 4 hours. After cooling down, the reaction product is precipitated out by the dropwise addition of 158 parts of 78% strength sulphuric acid and 500 parts of water, in each case with cooling, and isolated as indicated in Example 1. 61.6 parts of 1-hydroxy-4-amino-5-nitroanthraquinone are obtained.

Workup

  1. temperaturemaintained at this temperature
  2. temperatureAfter cooling down
  3. customthe reaction product is precipitated out by the dropwise addition of 158 parts of 78% strength sulphuric acid and 500 parts of water, in each case
  4. temperaturewith cooling
  5. customisolated

Sources & evidence

ORD record
ord-8d9ec96b9e0b463a9ffab7b8c3289b23
Source dataset
uspto-grants-1984_01
Patent number
US04424160

Reaction notes

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