Metal-organic frameworks containing nitrogen-donor ligands for efficient catalytic organic transformations
申请人:The University of Chicago
公开号:US10647733B2
公开(公告)日:2020-05-12
Metal-organic framework (MOFs) compositions based on nitrogen donor-based organic bridging ligands, including ligands based on 1,3-diketimine (NacNac), bipyridines and salicylaldimine, were synthesized and then post-synthetically metalated with metal precursors, such as complexes of first row transition metals. Metal complexes of the organic bridging ligands could also be directly incorporated into the MOFs. The MOFs provide a versatile family of recyclable and reusable single-site solid catalysts for catalyzing a variety of asymmetric organic transformations. The solid catalysts can also be integrated into a flow reactor or a supercritical fluid reactor.
Heterogeneous and homogeneous asymmetric electrocatalytic hydrogenation with rhodium(III) complexes containing chiral polypyridyl ligands
作者:Jean-Claude Moutet、Liu Yao Cho、Carole Duboc-Toia、Ste´phane Me´nage、Elvira C. Riesgo、Randolph P. Thummel
DOI:10.1039/a904477i
日期:——
of a rhodium complex containing a pyrrole-substituted chiral 2,2′-bipyridine ligand. The latter device gave the best results in terms of catalytic efficiency, turnover number (up to 4750) and asymmetric induction (up to 20% ee). From the viewpoint of catalytic efficiency and asymmetric induction, the electrocatalytic system compares well with asymmetric transfer hydrogenation catalyzed by rhodium complexes
METAL-ORGANIC FRAMEWORKS CONTAINING NITROGEN-DONOR LIGANDS FOR EFFICIENT CATALYTIC ORGANIC TRANSFORMATIONS
申请人:The University of Chicago
公开号:US20170182486A1
公开(公告)日:2017-06-29
Metal-organic framework (MOFs) compositions based on nitrogen donor-based organic bridging ligands, including ligands based on 1,3-diketimine (NacNac), bipyridines and salicylaldimine, were synthesized and then post-synthetically metalated with metal precursors, such as complexes of first row transition metals. Metal complexes of the organic bridging ligands could also be directly incorporated into the MOFs. The MOFs provide a versatile family of recyclable and reusable single-site solid catalysts for catalyzing a variety of asymmetric organic transformations. The solid catalysts can also be integrated into a flow reactor or a supercritical fluid reactor.
CHIRAL LIGAND-BASED METAL-ORGANIC FRAMEWORKS FOR BROAD-SCOPE ASYMMETRIC CATALYSIS
申请人:The University of Chicago
公开号:US20170173572A1
公开(公告)日:2017-06-22
Metal-organic framework (MOFs) compositions based on chiral phosphine-, chiral oxazoline-, chiral pyridine-, and chiral diene-derived organic bridging ligands were synthesized and then post-synthetically metalated with metal precursors such as Ru and Rh complexes. The metal complexes could also be directly incorporated into the MOFs. The MOFs provide a versatile family of recyclable and reusable single-site solid catalysts for catalyzing a variety of asymmetric organic transformations, including the addition of arylboronic acids to α,β-unsaturated ketones and alkimines, the hydrogenation of substituted alkene and carbonyl compounds, and cyclization reactions. The solid catalysts can also be integrated into a flow reactor or a supercritical fluid reactor.