Carbon Dioxide → 4-Hydroxybenzoic Acid

HRID 893437Notes

Reaction equation

HRID 893437 reaction equation
[C:1]1([OH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C1([C:16]([O-:18])=[O:17])C(O)=CC=C(C)C=1.[K+].C(=O)=O>>[OH:7][C:1]1[CH:6]=[CH:5][C:4]([C:16]([OH:18])=[O:17])=[CH:3][CH:2]=1

Participants

4

Reactant 3

HCID 280Carbon DioxideHCID 996PhenolHCID 67847974HCID 67847974, compound

Product 1

HCID 1354-Hydroxybenzoic AcidYield 79.6%

Procedure

A pressure vessel was charged with 4.73 g of phenol, 23.52 g of potassium para cresolate being in a dry powder form and 54 ml of a high boiling point light oil fraction (160° to 230° C./10mmHg) . Reaction was carried out at a carbon dioxide pressure of 4 kg/cm2 (G) and at 250° C. for one hour. An analysis of the reaction mixture after conversion to acid form showed a para-hydroxybenzoic acid yield of 79.6% on the basis of phenol.

Workup

  1. customReaction

Sources & evidence

ORD record
ord-76b50880a28d441b8d867784644588b8
Source dataset
uspto-grants-1992_06
Patent number
US05124477

Reaction notes

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