Hydrogenation of carboxylic esters catalyzed by manganese catalysts supported by bidentate NHC-phosphine ligands

Azouzi, Karim ; Pointis, Romane ; Buhaibeh, Ruqaya ; Hermosilla Fernández, Pablo ; Pedussaut, Lucie ; Boundor, Mohamed ; Bonfiglio, Anna ; Bruneau-Voisine, Antoine ; Wei, Duo ; Roisnel, Thierry ; Duhayon, Carine ; Casado, Miguel Ángel (Universidad de Zaragoza) ; Valyaev, Dmitry A. ; Canac, Yves ; Bastin, Stéphanie ; Raynaud, Christophe ; Sortais, Jean-Baptiste

Resumen: A series of bidentate manganese complexes with a general structure [(κ2C,P-R2PCH2CH2-NHC)Mn(CO)3Br] (NHC = N-substituted imidazolylidene) was prepared and fully characterized. These complexes were proven to be efficient catalysts for the hydrogenation of carboxylic ester derivatives with a low catalyst loading (0.5 mol%) in 2-Me-THF at 100 °C in the presence of KHBEt3. The generality of this hydrogenation was exemplified with more than 25 substrates. Experimental and computational investigations allowed to propose a rational mechanism involving an anionic tricarbonyl manganese hydride complex as the active species.

Idioma: Inglés

DOI: 10.1016/j.jcat.2024.115334

Año: 2024

Publicado en: Journal of Catalysis 430 (2024), 115334 [10 pp.]
ISSN: 0021-9517

Factor impacto JCR: 6.5 (2024)

Categ. JCR: ENGINEERING, CHEMICAL rank: 30 / 175 = 0.171 (2024) - Q1 - T1
Categ. JCR: CHEMISTRY, PHYSICAL rank: 50 / 185 = 0.27 (2024) - Q2 - T1

Factor impacto SCIMAGO: 1.558 - Physical and Theoretical Chemistry (Q1) - Catalysis (Q1)

Tipo y forma: Article (Published version)

Área (Departamento): Área Química Inorgánica (Dpto. Química Inorgánica)