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

被引：1

作者：

Azouzi, Karim ^{[1
]}

Pointis, Romane ^{[1
]}

Buhaibeh, Ruqaya ^{[1
]}

Fernandez, Pablo Hermosilla ^{[1
,2
]}

Pedussaut, Lucie ^{[1
]}

Boundor, Mohamed ^{[1
]}

Bonfiglio, Anna ^{[1
]}

Bruneau-Voisine, Antoine ^{[1
]}

Wei, Duo ^{[1
]}

Roisnel, Thierry

Duhayon, Carine ^{[1
]}

Casado, Miguel Angel ^{[2
]}

Valyaev, Dmitry A. ^{[1
]}

Canac, Yves ^{[1
]}

Bastin, Stephanie ^{[1
]}

Raynaud, Christophe ^{[4
]}

Sortais, Jean -Baptiste ^{[1
,3
,5
]}

机构：

[1] Univ Toulouse, LCC, CNRS, UPS, 205 route Narbonne, F-31077 Toulouse 4, France

[2] Univ Zaragoza, Dept Quim Inorgan, Inst Sintesis Quim & Catalisis Homogenea ISQCH, CSIC, C Pedro Cerbuna 12, Zaragoza 50009, Spain

[3] CNRS, ISCR, UMR6226, F-35000 Rennes, France

[4] Univ Montpellier, ICGM, CNRS, ENSCM, F-34090 Montpellier, France

[5] Inst Univ France, 1 Rue Descartes, F-75231 Paris 5, France

来源：

JOURNAL OF CATALYSIS | 2024年 / 430卷

关键词：

Manganese; Hydrogenation; Carboxylic esters; N -heterocyclic carbene; Phosphine; Earth abundant transition metals; CARBON-DIOXIDE HYDROGENATION; SELECTIVE HYDROGENATION; COMPLEXES; NITRILES; AMINES; KETONES; H-2;

D O I：

10.1016/j.jcat.2024.115334

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of bidentate manganese complexes with a general structure [(kappa C-2,P-R2PCH2CH2-NHC)Mn(CO)(3)Br] (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 degrees 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.

引用

页数：10

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