173035-06-8Relevant articles and documents
Snapshot of the palladium(II)-catalyzed oxidative biaryl bond formation by X-ray analysis of the intermediate diaryl palladium(II) complex
Gensch, Tobias,Roennefahrt, Marika,Czerwonka, Regina,Jaeger, Anne,Kataeva, Olga,Bauer, Ingmar,Knoelker, Hans-Joachim
, p. 770 - 776 (2012/03/26)
PdII caught in the act: The diaryl PdII intermediate of a PdII-catalyzed oxidative biaryl bond formation proceeding via a double C-H bond activation has been isolated and fully characterized, including an X-ray crystal structure analysis (see figure). Stabilization due to chelation by adjacent pivaloyloxy and acetyl groups has allowed the isolation of this long-sought crucial intermediate. On gentle warming, the complex is transformed into a carbazole product, and the catalytically active PdII species is regenerated by oxidation with CuII. Copyright