Air Oxidation of Benzene to Biphenyl - A Dual Catalytic Approach

Sudip Mukhopadhyay, Gadi Rothenberg, Gilad Lando, Kasim Agbaria, Murat Kazanci, Yoel Sasson*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

66 Scopus citations

Abstract

Facile oxidative homocoupling of benzenes to the respective biphenyls is effected under moderate conditions, using air or oxygen in the presence of catalytic PdCl2 and AcOH/AcONa as solvent. The fast regeneration of the active Pd2+ species is accomplished by combining several oxygen-binding catalysts, such as Zr(IV), Mn(II), and Co(II) acetates. In this way, it is possible to increase the content of active oxygen in solution so that the rate of catalyst regeneration is faster than the rate of aggregation of the "spent catalyst", Pd(0), to palladium black. The effects of various process parameters are studied and some mechanistic implications are discussed.

Original languageEnglish
Pages (from-to)455-459
Number of pages5
JournalAdvanced Synthesis and Catalysis
Volume343
Issue number5
DOIs
StatePublished - Jul 2001

Keywords

  • Atom economy
  • C-C coupling
  • Homogeneous catalysis
  • Oxidative coupling
  • Oxygen activation
  • Palladium

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