title: Terphenylquinones
text: # Terphenylquinones
  
  Terphenylquinones are fungal dyes from the group of phenyl-substituted p-benzoquinones having the following general structure.
  
     General chemical structure of terphenylquinones
  
  Also derivatives with a central o-benzoquinone structure are known.
  
  ## Biosynthesis
  
  The biosynthesis of terphenylquinones is carried out by dimerization of substituted oxophenylpropanoic acids (phenylpyruvic acids).
  
  ## Occurrence
  
  Terphenylquinones are typical constituents of the Boletales.
  
  ## Examples
  
      NameStructureCAS-Nr.Origin Polyporic acid548-59-4Polypore of the order Aphyllophorales, lichen Yarrumia coronata Atromentin519-67-5Paxillus atrotomentosus (Basidiomycota) Aurantiacin548-32-3Hydnellum aurantiacum (Basidiomycota) Phlebiarubron7204-23-1Cultures of Phlebia strigosozonata and Punctularia atropurpurascens (Basidiomycota) Spiromentin B121254-56-6Tapinella atrotomentosa (Basidiomycota) and cultures of Tapinella panuoides
  