Ferrocenyl Dinuclear Gold(I) Complexes. Study of their Structural Features and the Influence of Bridging and Phosphane Ligands in a Catalytic Cyclization Reaction
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Published:2024-01-11
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Volume:
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ISSN:0947-6539
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Container-title:Chemistry – A European Journal
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language:en
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Short-container-title:Chemistry A European J
Author:
Pérez‐Sánchez Juan Carlos12ORCID,
Herrera Raquel P.2,
Concepción Gimeno M.1ORCID
Affiliation:
1. Department of Inorganic Chemistry Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) CSIC-Universidad de Zaragoza C/ Pedro Cerbuna 12 50009 Zaragoza Spain
2. Department of Organic Chemistry Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) CSIC-Universidad de Zaragoza C/ Pedro Cerbuna 12 50009 Zaragoza Spain
Abstract
AbstractThe combination of the ferrocene moiety with gold(I) catalysis remains a relatively unexplored field. In this article, we delve into the synthesis, characterization, and potential catalytic activity of four complexes utilizing both monodentate and bidentate ferrocenyl diphenylphosphane ligands (ppf and dppf), coordinated with two gold(I) metal centers, linked by either chloride or pentafluorophenylthiolate bridging ligands. This leads to the formation of cationic “self‐activated” precatalysts capable of initiating the catalytic cycle without the need for external additives. The catalytic activity of these complexes was assessed through a model reaction in gold(I) catalysis, specifically the cyclization of a N‐propargylbenzamide to produce an oxazole. In addition, we studied and compared the influence exerted by both the phosphane and the bridging ligand on the performance of these catalysts.
Funder
Agencia Estatal de Investigación
Departamento de Educación, Cultura y Deporte, Gobierno de Aragón
Subject
General Chemistry,Catalysis,Organic Chemistry