Corannulene ethers via Ullmann condensation

Org Lett. 2009 Nov 19;11(22):5146-9. doi: 10.1021/ol902352k.

Abstract

Penta-aryloxycorannulene derivatives, which were previously considered difficult synthetic targets, are efficiently achieved via the Cu(I)-catalyzed Ullmann condensation reaction between 1,3,5,7,9-pentachlorocorannulene and a broad variety of substituted phenols. The reaction proceeds under air and mild conditions that are compatible even with 4-bromophenol. These findings open new avenues for easy preparation of other symmetrically substituted pentagonal building blocks that can be used for the preparation of new materials and new supramolecular architectures.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Catalysis
  • Copper / chemistry
  • Ethers / chemical synthesis*
  • Ethers / chemistry
  • Molecular Structure
  • Polycyclic Aromatic Hydrocarbons / chemical synthesis*
  • Polycyclic Aromatic Hydrocarbons / chemistry
  • Stereoisomerism

Substances

  • Ethers
  • Polycyclic Aromatic Hydrocarbons
  • corannulene
  • Copper