Phthalic Anhydride → Phthalic Acid

HRID 1656660Notes

Reaction equation

HRID 1656660 reaction equation
[C:1]1(=[O:11])[O:6][C:4](=[O:5])[C:3]2=[CH:7][CH:8]=[CH:9][CH:10]=[C:2]12.C(C(CCCCCCCCCC)C[OH:22])CCCCCCC>>[C:1]([OH:6])(=[O:11])[C:2]1[C:3](=[CH:7][CH:8]=[CH:9][CH:10]=1)[C:4]([OH:22])=[O:5]

Participants

3

Reactant 2

HCID 6811Phthalic AnhydrideHCID 214142-Octyldodecanol

Product 1

HCID 1017Phthalic Acid

Procedure

Phthalic anhydride (52 g) was added to 2-octyldodecanol (90 g) and the mixture was stirred and heated to 140° for 1 hour and then rapidly to 190° for 10 minutes and then cooled. The mixture was filtered to remove excess phthalic anhydride and any phthalic acid formed, yielding 2-(2'-octyldodecyloxycarbonyl)benzoic acid (110 g).

Workup

  1. temperatureheated to 140° for 1 hour
  2. temperaturecooled
  3. filtrationThe mixture was filtered
  4. customto remove excess phthalic anhydride

Sources & evidence

ORD record
ord-ba3c43d8985a4a9ebe443b187469ea58
Source dataset
uspto-grants-1993_10
Patent number
US05254695

Reaction notes

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