Potassium Carbonate → HCID 20323003, compound

HRID 839485

Reaction equation

HRID 839485 reaction equation
Cl[C:2]1[C:15]2[C:14](=[O:16])[C:13]3[C:8](=[C:9](Cl)[CH:10]=[CH:11][C:12]=3Cl)[C:7](=[O:19])[C:6]=2[C:5](Cl)=[CH:4][CH:3]=1.[SH:21][C:22]1[S:23][C:24]2[CH:30]=[CH:29][CH:28]=[CH:27][C:25]=2[N:26]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[S:23]1[C:24]2[CH:30]=[CH:29][CH:28]=[CH:27][C:25]=2[N:26]=[C:22]1[S:21][C:2]1[C:15]2[C:14](=[O:16])[C:13]3[C:8](=[C:9]([S:21][C:22]4[S:23][C:24]5[CH:30]=[CH:29][CH:28]=[CH:27][C:25]=5[N:26]=4)[CH:10]=[CH:11][C:12]=3[S:21][C:22]3[S:23][C:24]4[CH:30]=[CH:29][CH:28]=[CH:27][C:25]=4[N:26]=3)[C:7](=[O:19])[C:6]=2[C:5]([S:21][C:22]2[S:23][C:24]3[CH:30]=[CH:29][CH:28]=[CH:27][C:25]=3[N:26]=2)=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 664849,10-Anthracenedione, 1,4,5,8-tetrachloro-HCID 178418395HCID 178418395, compound

Product 1

HCID 20323003HCID 20323003, compoundYield 90.2%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

The dyestuff used can be prepared as follows: 15 g of 1,4,5,8-tetrachloro-anthraquinone, 75 g of dimethylformamide, 35 g of 2-mercaptobenzthiazole and 30 g of potassium carbonate are heated to 125°-130° C for about 3 hours. After cooling, the dyestuff which has precipitated in attractive red prisms is filtered off and washed with methanol and water. After drying, 34 g of 1,4,5,8-tetra-(2-benzthiazolyl-thio)-anthraquinone = 90% of theory are obtained.

Workup

  1. customThe dyestuff used can be prepared
  2. temperatureAfter cooling
  3. customthe dyestuff which has precipitated in attractive red prisms
  4. filtrationis filtered off
  5. washwashed with methanol and water
  6. customAfter drying

Sources & evidence

ORD record
ord-fffa3eaafbea410f8682c6dc41685fef
Source dataset
uspto-grants-1978_06
Patent number
US04096111

Linked notes

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