15-Membered triolefinic macrocycles - Catalytic role of (E,E,E)-1,6,11-tris(arenesulfonyl)-1,6,11-triazacyclopentadeca-3,8,13-triene complexes of palladium(0) in the presence of phosphanes

Marcial Moreno-Mañas, Roser Pleixats, Jan Spengler, Carole Chevrin, Boris Estrine, Sandrine Bouquillon, Françoise Hénin, Jacques Muzart, Anna Pla-Quintana, Anna Roglans

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34 Citations (Scopus)

Abstract

The palladium(0) complexes of (E,E,E)-1,6,11-tris(arenesulfonyl)-1,6,11-triazacyclopentadeca-3,8,13-trienes deliver palladium to phosphanes with the generation of high concentrations of catalytically active species such as Pd(PPh3)2. After oxidation of the phosphanes, the palladium is reincorporated into the macrocycle, thus avoiding agglomeration and precipitation. These conclusions were reached by 31P NMR, 19F NMR, and electrospray ionization mass spectrometry studies of telomerization and Tsuji-Trost reactions. © Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.
Original languageEnglish
Pages (from-to)274-283
JournalEuropean Journal of Organic Chemistry
Issue number2
DOIs
Publication statusPublished - 1 Jan 2003

Keywords

  • Catalysis
  • Macrocyclic ligands
  • Palladium
  • Telomerization

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