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。