Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/86030
Type: Artigo
Title: Phosphine-free heck reaction: mechanistic insights and catalysis “on water” using a charge-tagged palladium complex
Author: Santos, Marcelo R. dos
Coriolano, Romulo
Godoi, Marla N.
Monteiro, Adriano L.
Oliveira, Heibbe C. B. de
Eberlin, Marcos N.
Neto, Brenno A. D.
Abstract: A novel Pd-complex with a charge tag (imidazolium cation) was applied for online monitoring of the neutral Heck reaction by electrospray ionization (tandem) mass spectrometry-ESI-MS(/MS). The results shed light on the mechanism of the reaction, whereas the charge-tagged ligand also allowed the unprecedented MS monitoring of Pd2+ reduction to Pd0. Key reaction intermediates associated with Pd catalysis could also be detected and characterized due to the presence of the charge tag on the Pd-complex. DFT calculations supported the proposed mechanism. The new charge-tagged Pd-complex is also shown to function as an active catalyst "on water" with the advantage of using cheaper and less reactive aryl chloride substrates in a phosphine-free version of the Heck reaction. © the Partner Organisations 2014.
A novel Pd-complex with a charge tag (imidazolium cation) was applied for online monitoring of the neutral Heck reaction by electrospray ionization (tandem) mass spectrometry – ESI-MS(/MS). The results shed light on the mechanism of the reaction, whereas
Subject: Complexos de paládio
ESI-MS
Espectrometria de massa
Country: Reino Unido
Editor: Royal Society of Chemistry
Citation: New Journal Of Chemistry. Royal Society Of Chemistry, v. 38, n. 7, p. 2958 - 2963, 2014.
Rights: aberto
Fechado
Identifier DOI: 10.1039/c4nj00285g
Address: https://pubs.rsc.org/en/content/articlelanding/2014/NJ/c4nj00285g
Date Issue: 2014
Appears in Collections:IQ - Artigos e Outros Documentos

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