First time exploration and characterization of key-intermediates in palladium-catalysed coupling reactions.

Péter Szuroczki, Attila Bényei, Rafael T Aroso, Mariette M Pereira, László Kollár

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Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 authors.

Péter SzuroczkiDepartment of Inorganic Chemistry, University of Pécs, Ifjúság Útja 6., P.O.Box 266, 7624, Pécs, Hungary.

Attila BényeiDepartment of Physical Chemistry, University of Debrecen, Egyetem Tér 1., Debrecen, 4032, Hungary.

Rafael T ArosoCoimbra Chemistry Centre, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal.

Mariette M PereiraCoimbra Chemistry Centre, Department of Chemistry, University of Coimbra, Rua Larga, 3004-535, Coimbra, Portugal. mmpereira@qui.uc.pt.

László KollárDepartment of Inorganic Chemistry, University of Pécs, Ifjúság Útja 6., P.O.Box 266, 7624, Pécs, Hungary. kollar@gamma.ttk.pte.hu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The oxidative addition of a bromoporphyrin onto in situ formed highly active Pd(0) complex allowed us to characterize the Pd(II) intermediate by X-ray crystallography. In addition, after the heterobidentate coordination of Xantphos hemioxide (Xantphos: 4,5-bis(diphenylphosphino)-9,9-dimethyl-xanthene), the oxidized product responsible for Pd(II)-Pd(0) reduction, was also proved. The species isolated by us is the product of oxidative addition, the first step of the suggested catalytic cycle. Earlier only the structure of the dichloro complex of palladium with (P-P(O)) ligand was known. The isolated Pd(P-P(O))X(porphyrinyl) complex can be considered as a new example of catalytic intermediates of important cross-coupling and carbonylation reactions giving further strong proof for their mechanism.

Indexed as

Oxidative additionPalladiumPhosphinePorphyrinX-ray crystallography

Identifiers

PMID41851341

DOI10.1038/s41598-026-43634-1

PMCPMC13136337

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