Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Phosphorus or compound containing same
Reexamination Certificate
2006-12-26
2006-12-26
Page, Thurman K. (Department: 1621)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Phosphorus or compound containing same
C549S206000, C549S216000, C556S016000, C556S017000
Reexamination Certificate
active
07153809
ABSTRACT:
Chiral ligands and metal complexes based on such chiral ligands useful in asymmetric catalysis are disclosed. The metal complexes according to the present invention are useful as catalysts in asymmetric reactions, such as, hydrogenation, hydride transfer, allylic alkylation, hydrosilylation, hydroboration, hydrovinylation, hydroformylation, olefin metathesis, hydrocarboxylation, isomerization, cyclopropanation, Diels-Alder reaction, Heck reaction, isomerization, Aldol reaction, Michael addition; epoxidation, kinetic resolution and [m+n] cycloaddition. Processes for the preparation of the ligands are also described.
REFERENCES:
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Tang Wenjun
Zhang Xumu
Nwaonicha Chukwuma
Ohlandt Greeley Ruggiero & Perle L.L.P.
Page Thurman K.
The Penn State Research Foundation
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