Details

Autor(en) / Beteiligte

• Pardatscher, Lorenz
• Hofmann, Benjamin J
• Fischer, Pauline J
• Hölzl, Sebastian M
• Reich, Robert M
• Kühn, Fritz E
• Baratta, Walter

Titel

Highly Efficient Abnormal NHC Ruthenium Catalyst for Oppenauer-Type Oxidation and Transfer Hydrogenation Reactions

Ist Teil von

• ACS catalysis, 2019-12, Vol.9 (12), p.11302-11306

Ort / Verlag

American Chemical Society

Erscheinungsjahr

2019

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The ruthenium complex [Ru­(OAc)­(a-PC)2]Br (3) containing two abnormal NHC ligands is obtained by reaction of Ru­(OAc)2(PPh3)2 (1) with 1-(2-diphenyl­phosphinoethyl)-3-mesityl­imidazolium bromide in the presence of NaOAc. Complex 3 catalyzes the Oppenauer-type oxidation of a number of alcohols at unrivalled reaction rates reaching TOFs up to 550 000 h–1, at low catalyst loadings (S/C higher than 10 000) and using acetone in stoichiometric amounts. Complex 3 is also highly active in the reverse transfer hydrogenation of several ketones with 2-propanol, displaying TOFs up to 600 000 h–1.