Sulfuric Acid → HCID 10947012, compound

HRID 1420474Notes

Reaction equation

HRID 1420474 reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[Br:8].[S:9](=O)(=[O:12])([OH:11])[OH:10]>C(Cl)CCl>[Br:1][C:2]1[CH:7]=[C:6]([S:9]([OH:12])(=[O:11])=[O:10])[CH:5]=[CH:4][C:3]=1[Br:8]

Participants

4

Reactant 2

HCID 1118Sulfuric AcidHCID 114141,2-Dibromobenzene

Product 1

HCID 10947012HCID 10947012, compoundYield 94.9%

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Procedure

There was furnished a 300-ml four-necked flask equipped with a stirrer, condenser, and thermometer, which was charged with 90 g of 1,2-ethylene dichloride and 45 g (0.19 mol) of 1,2-dibromobenzene. While moderately passing nitrogen gas, 53.5 g (0.20 mol) of 30% fuming sulfuric acid was added dropwise, and reaction was effected at 70° C. for 2 hours. The reaction solution was cooled, followed by filtration and drying, obtaining 57 g of crude 3,4-dibromobenzenesulfonic acid.

Workup

  1. customThere was furnished a 300-ml four-necked flask
  2. customequipped with a stirrer, condenser
  3. customreaction
  4. temperatureThe reaction solution was cooled
  5. filtrationfollowed by filtration
  6. customdrying

Sources & evidence

ORD record
ord-06589ef4d6394a87b3ca02972193ab0e
Source dataset
uspto-grants-2000_06
Patent number
US06071672

Reaction notes

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