Carbon Dioxide → 4-Hydroxybenzoic Acid

HRID 893435

Reaction equation

HRID 893435 reaction equation
[C:1]1([OH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C1(C)C([C:15]([O-:17])=[O:16])=CC=CC=1O.[K+].C(C1C(CC2C=CC=CC=2)=C(C)C=CC=1)C1C=CC=CC=1.C(=O)=O>>[OH:7][C:1]1[CH:6]=[CH:5][C:4]([C:15]([OH:17])=[O:16])=[CH:3][CH:2]=1

Participants

5

Reactant 4

HCID 280Carbon DioxideHCID 996PhenolHCID 3034397Methylbis(phenylmethyl)benzeneHCID 70420683Potassium cresolate

Product 1

HCID 1354-Hydroxybenzoic AcidYield 81.1%

Procedure

A pressure vessel was charged with 4.71 g of phenol, 17.56 g of potassium ortho-cresolate being in a dry powder form and 43 ml of NeoSK 1400 (a dibenzyltoluen mixture medium produced by Soken Chemical K.K.). With stirring, reaction was carried out at a carbon dioxide pressure of 3 kg/cm2 (G) and at 270° C. for one hour. An analysis of the reaction mixture after conversion to acid form showed a para-hydroxybenzoic acid yield of 81.1% on the basis of phenol.

Workup

  1. customproduced by Soken Chemical K.K
  2. customreaction

Sources & evidence

ORD record
ord-c164119c112145f5873e9cdca7f7d47a
Source dataset
uspto-grants-1992_06
Patent number
US05124477

Linked notes

Loading…