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4,4'-biphenyldiol
Sign in to saveAlso known as 4,4'-dioxydiphenyl, DOD, 4,4'-biphenol, p,p'-biphenol, p,p'-dihydroxybiphenyl
4,4′-Biphenol is an organic compound with the formula / It is one of three symmetrical isomers of biphenol. It is a colourless crystalline solid with a high melting point. It is primarily used in the production of polymers, particularly liquid crystals where it imparts high thermal stability, and PPSU-type polysulfone (also called polyphenylenesulfone, or Radel R).
Chemical data
- Formula
- C12H10O2
- Molecular weight
- 186.21 g/mol
- IUPAC name
- 4-(4-hydroxyphenyl)phenol
via PubChem
Drug data · ChEMBL
- Molecule type
- Small molecule
via ChEMBL · EBI
Wikidata facts
- Subclass of
- chemical compound
- Mass
- 186.068
Show 4 more facts
- chemical formula
- C₁₂H₁₀O₂
- canonical SMILES
- C1=CC(=CC=C1C2=CC=C(C=C2)O)O
- melting point
- 282.0
- Commons category
- Biphenol
Sources (2)
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Encyclopedic overview
4 sectionsContents
- Synthesis
- Safety
- See also
- References
4,4′-Biphenol is an organic compound with the formula / It is one of three symmetrical isomers of biphenol. It is a colourless crystalline solid with a high melting point. It is primarily used in the production of polymers, particularly liquid crystals where it imparts high thermal stability, and PPSU-type polysulfone (also called polyphenylenesulfone, or Radel R).
==Synthesis== The industrial synthesis of 4,4′-biphenol was developed by Allan Hay in the 1960s. As the direct oxidative coupling of phenol gives a mixture of isomers, 4,4′-biphenol is instead prepared from 2,6-di-tert-butylphenol, where para-coupling is the only possibility. A reaction with oxygen produces phenol-radicals which undergo rapid dimerisation, ultimately forming a diphenoquinone. thumb|Synthesis of 4.4'-biphenol from 2,6-di-tert-butylphenol. Isobutylene is eliminated in the final stage.|center
Excerpted from Wikipedia’s “4,4'-biphenyldiol” article, available under the CC BY-SA 4.0 licence.
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