Unsymmetrically substituted phospholane catalysts

Organic compounds -- part of the class 532-570 series – Organic compounds – Phosphorus containing

Reexamination Certificate

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C548S412000

Reexamination Certificate

active

07834215

ABSTRACT:
The present invention is based on new ligand systems of the general formula (I). These ligand systems can be used advantageously in transition metal-catalyzed asymmetric syntheses. Likewise encompassed are the transition metal complexes thus prepared, a process for preparing the ligands and the use of the complexes in asymmetric synthesis.

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