Phenol → 4,4'-Dihydroxybiphenyl

HRID 329495Notes

Reaction equation

HRID 329495 reaction equation
[C:1]1([OH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.S(=O)(=O)(O)O>>[CH:3]1[C:4]([C:4]2[CH:5]=[CH:6][C:1]([OH:7])=[CH:2][CH:3]=2)=[CH:5][CH:6]=[C:1]([OH:7])[CH:2]=1

Participants

3

Reactant 2

HCID 996PhenolHCID 1118Sulfuric Acid

Product 1

HCID 71124,4'-DihydroxybiphenylYield 91%

Procedure

The procedures of Example 12 were repeated except that 10.0 g of reaction solution (1) obtained in Example 12, 0.1 g of phenol (solvent) and 0.04 g of sulfuric acid (catalyst) were added to the whole portion of mother liquor (I) obtained in Example 12 and that reaction was performed at 185° C. for 3 hours to produce p,p'-biphenol.

Sources & evidence

ORD record
ord-c0d019008bb540f8b2221145f258ff91
Source dataset
uspto-grants-1990_01
Patent number
US04891453

Reaction notes

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