Details

Autor(en) / Beteiligte

• Váňa, Jiří
• Lang, Jan
• Šoltésová, Mária
• Hanusek, Jiří
• Růžička, Aleš
• Sedlák, Miloš
• Roithová, Jana

Titel

The role of trinuclear species in a palladium acetate/trifluoroacetic acid catalytic system

Ist Teil von

• Dalton transactions : an international journal of inorganic chemistry, 2017, Vol.46 (46), p.16269-16275

Ort / Verlag

England: Royal Society of Chemistry

Erscheinungsjahr

2017

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Reactions catalyzed by palladium(ii) acetate and trifluoroacetic acid (TFA) have a clear preactivation phase. However, the structure of real catalytic species remains unclear. We show that the key species are cyclic trinuclear complexes of composition [Pd (OAc) (OTFA) ] (x = 1-6) formed by a sequential ligand exchange from [Pd (OAc) ]. Furthermore, we prove that the trinuclear palladium backbone of the precatalyst remains preserved during the first phase of the C-H activation reaction of acetanilides. In other words, the reaction pathway including the trinuclear species should be taken into account in discussion about mechanisms of the reactions catalyzed by palladium acetates.