publication . Article . 2014

Effects of PAr3 Ligands on Direct Arylation of Heteroarenes with Isolated [Pd(2,6-Me2C6H3)(μ-O2CMe)(PAr3)]4 Complexes

Masayuki Wakioka; Yuki Nakamura; Yoshihiro Hihara; Fumiyuki Ozawa; Shigeyoshi Sakaki;
  • Published: 08 Oct 2014 Journal: Organometallics, volume 33, pages 6,247-6,252 (issn: 0276-7333, eissn: 1520-6041, Copyright policy)
  • Publisher: American Chemical Society (ACS)
The palladium-catalyzed direct arylation of heteroarenes with aryl halides has attracted considerable attention as a simple cross-coupling process that does not need organometallic reagents. It is generally accepted that this catalysis proceeds via an arylpalladium carboxylate intermediate, which produces direct arylation products via the sequence of three elementary processes: (a) substrate coordination, (b) C–H bond cleavage, and (c) C–C reductive elimination. This paper describes kinetic investigations into the effects of four kinds of PAr3 ligands on direct arylation using the isolated complexes [Pd(2,6-Me2C6H3)(μ-O2CMe)(PAr3)]4 (1: Ar = Ph (a), 4-MeOC6H4 (b...
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free text keywords: Inorganic Chemistry, Organic Chemistry, Physical and Theoretical Chemistry, Aryl, chemistry.chemical_compound, chemistry, Ligand, Monomer, Carboxylate, Medicinal chemistry, Reductive elimination, Stereochemistry, Bond cleavage, Benzothiazole, Catalysis
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