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HCOOH disproportionation to MeOH promoted by molybdenum PNP complexes

Molybdenum(0) complexes with aliphatic aminophosphine pincer ligands have been prepared which are competent for the disproportionation of formic acid, thus representing the first example so far reported of non-noble metal species to catalytically promote such transformation. In general, formic acid...

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Detalles Bibliográficos
Autores principales: Alberico, Elisabetta, Leischner, Thomas, Junge, Henrik, Kammer, Anja, Sang, Rui, Seifert, Jenny, Baumann, Wolfgang, Spannenberg, Anke, Junge, Kathrin, Beller, Matthias
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8513996/
https://www.ncbi.nlm.nih.gov/pubmed/34745541
http://dx.doi.org/10.1039/d1sc04181a
Descripción
Sumario:Molybdenum(0) complexes with aliphatic aminophosphine pincer ligands have been prepared which are competent for the disproportionation of formic acid, thus representing the first example so far reported of non-noble metal species to catalytically promote such transformation. In general, formic acid disproportionation allows for an alternative access to methyl formate and methanol from renewable resources. MeOH selectivity up to 30% with a TON of 57 could be achieved while operating at atmospheric pressure. Selectivity (37%) and catalyst performance (TON = 69) could be further enhanced when the reaction was performed under hydrogen pressure (60 bars). A plausible mechanism based on experimental evidence is proposed.