Chiral phosphines, transition metal complexes thereof and uses thereof in asymmetric reactions
申请人:The Penn State Research Foundation
公开号:US06576772B1
公开(公告)日:2003-06-10
Chiral ligands and transition metal complexes based on such chiral ligands useful in asymmetric catalysis are disclosed. The chiral ligands include (R,S,S,R)-DIOP*. The ruthenium complex reduces enamide to the corresponding amine with up to 99% enantioselectivity. The transition metal complexes of the chiral ligands are useful in asymmetric reactions such as asymmetric hydrogenation, hydride transfer, hydrosilylation, hydroboration, hydrovinylation, hydroformylation, hydrocarboxylation, isomerization, allylic alkylation, cyclopropanation, Diels-Alder reaction, Heck reaction, isomerization, Aldol reaction, Michael addition and epoxidation reactions.
揭示了基于手性配体的手性配体和过渡金属配合物,在不对称催化中非常有用。这些手性配体包括(R,S,S,R)-DIOP*。钌配合物可将烯酰胺还原为相应的胺,其对映选择性可高达99%。这些手性配体的过渡金属配合物在不对称反应中非常有用,如不对称加氢、氢化物转移、氢硅烷基化、氢硼化、氢乙烯基化、氢甲酰化、羧化、异构化、烯丙基烷基化、环丙烷化、Diels-Alder反应、Heck反应、醛醇反应、Michael加成和环氧化反应。