Charge-Tagged Acetate Ligands As Mass Spectrometry Probes for Metal Complexes Investigations: Applications in Suzuki and Heck Phosphine-Free Reactions
Autor: | Adriano L. Monteiro, Felipe F. D. Oliveira, Alexandre A. M. Lapis, Priscila M. Lalli, Peter Bakuzis, Brenno A. D. Neto, Eduardo Morgado Schmidt, Marcelo Rodrigues dos Santos, Marcos N. Eberlin |
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Rok vydání: | 2011 |
Předmět: | |
Zdroj: | The Journal of Organic Chemistry. 76:10140-10147 |
ISSN: | 1520-6904 0022-3263 |
Popis: | An acetate anion bearing an imidazolium cation as its charge tag was reacted with M(OAc)(2) complexes (where M = Ni, Cu, and Pd; in situ reaction) to form members of a new class of charge-tagged metal complexes. The formation of these unprecedented precatalysts with potential for cross-coupling reactions was confirmed by electrospray ionization (and tandem) mass spectrometry. The catalytic performance of the palladium complex was tested in Heck and Suzuki cross-coupling reactions, often with superior activity and yields as compared with Pd(OAc)(2). |
Databáze: | OpenAIRE |
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