A facile two-step synthesis of thiophene end-capped aromatic systems

  • Rungtaweevoranit B
  • Butsuri A
  • Wongma K
 et al. 
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Abstract

Thiophene end-capped aromatic analogues, that is, naphthothiophenes, naphthodithiophenes, pyrenothiophene, and benzotrithiophene, can be prepared from commercially available hydroxyarenes in two steps, including (1) a consecutive acid-mediated nucleophilic aromatic substitution of hydroxyarenes with 2-mercaptoethanol, followed by cyclization to form an arene-fused dihydrothiophene, and (2) oxidation of the dihydrothiophene unit to thiophene. © 2012 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • Naphthodithiophene
  • Nucleophilic aromatic substitution
  • Oxygen-sulfur replacement
  • Sulfur-containing aromatic heterocycles
  • Thiophene

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