申请人:Bergen Teknologioverforing AS
公开号:US20150025212A1
公开(公告)日:2015-01-22
The present invention refers to novel ruthenium- and osmium-based catalysts for olefin metathesis reactions, particularly to catalysts having stereoselective properties. Z-selectivity is obtained by utilising two mono-anionic ligands of very different steric requirement. In olefin metathesis reactions these catalysts selectively provide the Z-isomer of disubstituted olefinic products even in presence of air or of acids.
本发明涉及新型的铼和锇基催化剂,用于烯烃交换反应,特别是具有立体选择性的催化剂。通过利用两个单阴离子配体的非常不同的立体要求,可以获得Z-选择性。在烯烃交换反应中,即使存在空气或酸,这些催化剂也可以选择性地提供二取代烯烃产物的Z异构体。