Novel Amido-Complexes for the Efficient Asymmetric Hydrogenation of Imines
作者:Kathrin Kutlescha、Torsten Irrgang、Rhett Kempe
DOI:10.1002/adsc.201000733
日期:2010.12.17
Novel N,N,P ligand stabilized rhodium complexes exhibiting high activities and enantioselectivities in the asymmetrichydrogenation of N-aryl imines are introduced. The ligands were synthesized from inexpensive starting materials and their modular design allows for the introduction of a broad variety of substitution patterns. Additionally, a rather low catalyst loading could be employed.
Chiral Frustrated Lewis Pair@Metal‐Organic Framework as a New Platform for Heterogeneous Asymmetric Hydrogenation
作者:Yin Zhang、Songbo Chen、Abdullah M. Al‐Enizi、Ayman Nafady、Zhiyong Tang、Shengqian Ma
DOI:10.1002/anie.202213399
日期:2023.1.9
A highly active heterogeneouschiralfrustratedLewis pair system has been achieved for the first time via incorporating rationally designed bifunctional chiral FLP molecules into a MOF under the guidance of computational studies; the afforded CFLP@MOF demonstrated superb catalysis performances in heterogeneousasymmetrichydrogenation with excellent recyclability/regenerability.
An iodine-mediated 1,2-arylmigration reaction of primary benzhydryl amines under transition metal-free conditions has been achieved. The crude imines generated by this rearrangement reaction can be directly transformed into various aromatic secondary amine derivatives via reduction or addition reactions. This sequential synthetic process is operationally simple and can be successfully conducted on