Water → Quinacridonequinone

HRID 488539Notes

Reaction equation

HRID 488539 reaction equation
[CH:1]1[CH:6]=[C:5]2[C:7]([C:9]3[C:14]([NH:15][C:4]2=[CH:3][CH:2]=1)=[CH:13][C:12]1[C:16]([C:18]2[C:23]([NH:24][C:11]=1[CH:10]=3)=[CH:22][CH:21]=[CH:20][CH:19]=2)=[O:17])=[O:8].[OH-:25].[K+].S(OOS([O-])(=O)=O)([O-])(=O)=O.[Na+].[Na+].[OH2:39]>>[CH:20]1[CH:19]=[C:18]2[C:16]([C:12]3[C:13](=[O:39])[C:14]4[NH:15][C:4]5[C:5]([C:7](=[O:8])[C:9]=4[C:10](=[O:25])[C:11]=3[NH:24][C:23]2=[CH:22][CH:21]=1)=[CH:6][CH:1]=[CH:2][CH:3]=5)=[O:17]

Participants

5

Reactant 4

HCID 962WaterHCID 13976QuinacridoneHCID 14797Potassium HydroxideHCID 62655Sodium Persulfate

Product 1

HCID 73920Quinacridonequinone

Conditions

Temperature
65 °C

Procedure

Quinacridone (50 grams) was dispersed in water (1000 grams) and potassium hydroxide (50 grams) was added. The resulting slurry was then heated to 65° C. and sodium peroxydisulfate (200 grams) was added over a 6 hour period. The resulting slurry was stirred continuously for 8 hours at 65° C. then filtered. The resulting presscake was washed with water to neutral and dried. 55 grams of bright yellow highly pure quinacridonequinone was produced.

Workup

  1. filtrationthen filtered
  2. washThe resulting presscake was washed with water to neutral and
  3. customdried

Sources & evidence

ORD record
ord-2b06afe72a0a4301b6536c2e46d02387
Source dataset
uspto-grants-2005_12
Patent number
US06972333B2

Reaction notes

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