Well-Defined Iron Catalyst for Improved Hydrogenation of Carbon Dioxide and Bicarbonate

作者：Ziebart, Carolin; Federsel, Christopher; Anbarasan, Pazhamalai; Jackstell, Ralf; Baumann, Wolfgang; Spannenberg, Anke; Beller, Matthias^*

来源：Journal of the American Chemical Society, 2012, 134(51): 20701-20704.

DOI：10.1021/ja307924a

• ASYMMETRIC TRANSFER HYDROGENATION
• RUTHENIUM TRIMETHYLPHOSPHINE COMPLEXES
• FORMIC-ACID
• HOMOGENEOUS HYDROGENATION
• METAL-COMPLEXES
• ALKYL FORMATES
• CHIRAL LIGANDS
• EFFICIENT
• CO2
• HYDROSILYLATION

The most efficient, stable, and easy-to-synthesize non-noble metal catalyst system for the reduction of CO2 and bicarbonates is presented. In the presence of the iron(II)-fluoro-tris(2-(diphenylphosphino)phenyl)phosphino]tetrafluoroborate complex 3, the hydrogenation of bicarbonates proceeds in good yields with high catalyst productivity and activity (TON > 7500, TOF > 750). High-pressure NMR studies of the hydrogenation of carbon dioxide demonstrate that the corresponding iron-hydridodihydrogen complex 4 is crucial in the catalytic cycle.

• 出版日期2012-12-26