Phenylphosphonic Acid → 3-Phosphonobenzene-1-sulfonic acid

HRID 1010506

Reaction equation

HRID 1010506 reaction equation
[C:1]1([P:7](=[O:10])([OH:9])[OH:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[S:11](OP(C1C=CC=CC=1)(=O)O)([OH:14])(=[O:13])=[O:12].[Cl-].[Ba+2].[Cl-]>O>[S:11]([C:3]1[CH:2]=[C:1]([P:7](=[O:9])([OH:8])[OH:10])[CH:6]=[CH:5][CH:4]=1)([OH:14])(=[O:13])=[O:12]

Participants

5

Reactant 3

HCID 15295Phenylphosphonic AcidHCID 5360350Barium(2+) dichlorideHCID 12759500HCID 12759500, compound

Product 1

HCID 149010633-Phosphonobenzene-1-sulfonic acid

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

20.2 g of phenylphosphonic acid and 8.56 g of sulfotrioxide were mechanically mixed at 180° C. for 24 hr to prepare nz-sulfophenylphosphonic acid. After diluting with excess water, the mixture was added with 15% barium chloride. The precipitate was removed by filtering and excess dimethylether was added to extract unreacted phenyl phosphonic acid and obtain a m-sulfophenylphosphonic acid solution.

Workup

  1. customThe precipitate was removed
  2. filtrationby filtering
  3. additionexcess dimethylether was added
  4. extractionto extract unreacted phenyl phosphonic acid

Sources & evidence

ORD record
ord-94f6caa156864ac887feb72d3a1f8fa7
Source dataset
uspto-grants-2011_07
Patent number
US07977008B2

Linked notes

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