NOVEL COMPOUND, NOVEL LIGAND, NOVEL TRANSITION METAL COMPLEXES, AND CATALYSTS CONSISTING OF NOVEL TRANSITION METAL COMPLEXES
申请人:National University Corporation Okayama University
公开号:EP2676963A1
公开(公告)日:2013-12-25
The invention provides novel ligands for transition metal complexes which exhibit high coordination power with respect to metals by being free of substituents at the positions ortho to phosphorus or arsenic and which have electron-withdrawing power comparable to the highest level known in conventional ligands. A ligand of the invention includes a compound represented by General Formula (1) : R1R2R3A or General Formula (2): R1R2A-Y-AR3R4 and having a total of 15 to 110 carbon atoms. In the formulae, A is phosphorus or arsenic; R1, R2, R3 and R4 are each independently a substituted pyridyl group having optionally different electron-withdrawing groups bonded to the positions meta to the atom A as well as hydrogen atoms bonded to the positions ortho to the atom A; and Y is a divalent group derived from a C2-20, optionally substituted and optionally heteroatom-containing, aliphatic, alicyclic or aromatic compound or from ferrocene.
本发明提供了用于过渡金属配合物的新型配体,这些配体通过在磷或砷的正交位置上不含取代基而显示出与金属的高配位能力,并且具有与传统配体已知的最高水平相当的电子萃取能力。本发明的配体包括通式(1):R1R2R3A 或通式(2)代表的化合物:R1R2A-Y-AR3R4 所表示的化合物,其碳原子总数为 15 至 110 个。在通式中,A 是磷或砷;R1、R2、R3 和 R4 各自独立地是取代的吡啶基,该吡啶基具有与原子 A 元位置成键的任选不同的抽电子基团,以及与原子 A 正交位置成键的氢原子;Y 是二价基团,衍生自 C2-20、任选取代和任选含杂原子的脂肪族、脂环族或芳香族化合物或二茂铁。