Carbon Dioxide → 4-Hydroxybenzoic Acid

HRID 893438Notes

Reaction equation

HRID 893438 reaction equation
[C:1]1([OH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C1([O-])C=C(C)C=C(C)C=1.[K+].[C:18](=[O:20])=[O:19]>>[OH:7][C:1]1[CH:6]=[CH:5][C:4]([C:18]([OH:20])=[O:19])=[CH:3][CH:2]=1

Participants

4

Reactant 3

HCID 280Carbon DioxideHCID 996PhenolHCID 23666958HCID 23666958, compound

Product 1

HCID 1354-Hydroxybenzoic AcidYield 83.8%

Procedure

A pressure vessel was charged with 4.72 g of phenol, 24.10 g of potassium 3,5-xylenolate being in a dry powder form and 50 ml of NeoSK 1400. With stirring, reaction was carried out at a carbon dioxide pressure of 7 kg/cm2 (G) and at 300° C. for one hour. An analysis of the reaction mixture after conversion to acid form showed a para-hydroxybenzoic acid yield of 83.8% on the basis of phenol.

Workup

  1. customreaction

Sources & evidence

ORD record
ord-4c9d690a47474f9a911eb8a012c42849
Source dataset
uspto-grants-1992_06
Patent number
US05124477

Reaction notes

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