申请人:Vries De Johannes Gerardus (Hans)
公开号:US20080269529A1
公开(公告)日:2008-10-30
The invention relates to an enantiomerically enriched chiral compound comprising a transition metal M, which comprises four, five or six coordinating groups of which at least one pair is linked together to form a bidentate ligand, in which M is directly bound via one single σ-bond to a carbon atom of an optionally substituted and/or optionally fused (hetero)aromatic ring of said bidentate ligand and in which M is directly bound to a nitrogen atom of a primary or secondary amino group of said bidentate ligand, thereby forming a metallacycle between said bidentate ligand and the metal M, said metal M being selected from the metals of groups 8 and 9 of the Periodic Table of the Elements, in particular iron, ruthenium, osmium, cobalt, rhodium, or iridium. The chiral compound can be used as a catalyst, preferably in an asymmetric transfer hydrogenation process. The invention further relates to a process for an asymmetric transfer hydrogenation of a prochiral compound in the presence of a hydrogen donor and the chiral compound of the invention comprising a transition metal chosen from the metals of groups 8, 9 and 10 of the Periodic Table, in particular iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium or platinum as the catalyst.
本发明涉及一种手性化合物,其中包含过渡金属M,该金属包含四个、五个或六个配位基团,其中至少一对基团连接在一起形成双齿配体。在该双齿配体的一个可选取代和/或可选融合的(杂)芳香环的碳原子上,M通过一个单一的σ键直接结合,并且M直接与双齿配体的一级或二级氨基团的氮原子结合,从而在双齿配体和金属M之间形成一个金属环。所述金属M选自元素周期表第8和第9组的金属,特别是铁、钌、锇、钴、铑或铱。该手性化合物可用作催化剂,优选在不对称转移氢化过程中使用。本发明还涉及一种在氢供体和来自元素周期表第8、9和10组的金属中选择的过渡金属,特别是铁、钌、锇、钴、铑、铱、镍、钯或铂作为催化剂的不对称转移氢化的过程。