p-Dodecylbenzenesulfonic acid → Salicylic Acid

HRID 1742796Notes

Reaction equation

HRID 1742796 reaction equation
[CH3:1][C:2]([C:4]([O:6]CCO)=[O:5])=[CH2:3].C(C1C=CC(S(O)(=O)=[O:29])=CC=1)CCCCCCCCCCC.[CH3:32][CH2:33][CH2:34]CCCC>C(OCC)(=O)C>[C:4]([OH:6])(=[O:5])[C:2]1[C:1](=[CH:32][CH:33]=[CH:34][CH:3]=1)[OH:29]

Participants

5

Reactant 3

HCID 8485p-Dodecylbenzenesulfonic acidHCID 8900HeptaneHCID 133602-Hydroxyethyl Methacrylate2×

Product 1

HCID 338Salicylic Acid

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

A mixture of 2 g of HEMA, 1.5 g of 10% p-dodecylbenzene sulfonic acid (DBSA) in heptane and 15 ml of ethyl acetate was added to the polymeric stabilizer precursor solution prepared above. The reaction mixture was stirred at room temperature overnight. The IR spectra of a dry film of the polymeric solution showed the disappearance of the azlactone carbonyl peak, indicating the completion of the reaction of the azlactone with HEMA.

Workup

  1. additionwas added to the polymeric stabilizer precursor solution
  2. customprepared above

Sources & evidence

ORD record
ord-4573a06f85c1462b8c09dd22b0bf9824
Source dataset
uspto-grants-1994_08
Patent number
US05342720

Reaction notes

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