| Literature DB >> 28730716 |
Marcel Garbe1, Kathrin Junge1, Svenja Walker1, Zhihong Wei1, Haijun Jiao1, Anke Spannenberg1, Stephan Bachmann2, Michelangelo Scalone2, Matthias Beller1.
Abstract
A new chiral manganese PNP pincer complex is described. The asymmetric hydrogenation of several prochiral ketones with molecular hydrogen in the presence of this complex proceeds under mild conditions (30-40 °C, 4 h, 30 bar H2 ). Besides high catalytic activity for aromatic substrates, aliphatic ketones are hydrogenated with remarkable selectivity (e.r. up to 92:8). DFT calculations support an outer sphere hydrogenation mechanism as well as the experimentally determined stereochemistry.Entities:
Keywords: asymmetric hydrogenation; chiral alcohols; chiral pincer ligands; ketones; manganese
Year: 2017 PMID: 28730716 DOI: 10.1002/anie.201705471
Source DB: PubMed Journal: Angew Chem Int Ed Engl ISSN: 1433-7851 Impact factor: 15.336