Sulfuric Acid → HCID 57923805, compound

HRID 1097126Notes

Reaction equation

HRID 1097126 reaction equation
[C:1]1([C:7]2[CH:12]=[CH:11][C:10]([C:13]3[CH:18]=[CH:17][C:16]([C:19]4[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=4)=[CH:15][CH:14]=3)=[CH:9][CH:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.O[S:26]([OH:29])(=[O:28])=[O:27].[O:30]=[S:31](=[O:33])=[O:32].[S:34](=O)(=O)([OH:36])[OH:35]>O>[O:35]=[S:34]1(=[O:36])[C:9]2[CH:8]=[C:7]([C:1]3[CH:2]=[CH:3][C:4]([S:26]([OH:29])(=[O:28])=[O:27])=[CH:5][CH:6]=3)[CH:12]=[CH:11][C:10]=2[C:13]2[CH:18]=[CH:17][C:16]([C:19]3[CH:20]=[CH:21][C:22]([S:31]([OH:33])(=[O:32])=[O:30])=[CH:23][CH:24]=3)=[CH:15][C:14]1=2

Participants

5

Reactant 3

HCID 1118Sulfuric AcidHCID 8677p-Quaterphenyl2×HCID 24681Fuming sulfuric acid

Product 1

HCID 57923805HCID 57923805, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

4,4′-(5,5-Dioxidodibenzo[b,d]thiene-3,7-diyl)dibenzenesulfonic acid (II) was prepared by sulfonation of 1,1′:4′,1″:4″,1′″-quaterphenyl. 1,1′:4′,1″:4″,1′″-Quaterphenyl (10 g) was charged into 20% oleum (100 ml). Reaction mass was agitated for 5 hours at ambient conditions. After that the reaction mixture was diluted with water (170 ml). The final sulfuric acid concentration was around 55%. The precipitate was filtered and rinsed with glacial acetic acid (˜200 ml). Filter cake was dried in oven at ˜110° C. The process yielded 8 g of 4,4′-(5,5-Dioxidodibenzo[b,d]thiene-3,7-diyl)dibenzenesulfonic acid.

Workup

  1. customReaction mass
  2. filtrationThe precipitate was filtered
  3. washrinsed with glacial acetic acid (˜200 ml)
  4. filtrationFilter cake
  5. customwas dried in oven at ˜110° C

Sources & evidence

ORD record
ord-587d0bf33a3b4d5abbffdc427df1bac8
Source dataset
uspto-grants-2012_03
Patent number
US08142863B2

Reaction notes

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