difosfine eteroaromatiche as chiral ligands in the complex difosfine and transition metal, and use of these complexes as catalysts, chiral

摘要

Chiral diphosphines constituted by an aromatic pentatomic biheterocyclic system, suitable to act as chiral ligands, complexes between said diphosophines and transition metals, and their utilization as chiral catalysts in stereocontrolled reactions, such as diastereo- and enantioselective reduction reactions. Process for the preparation of said chiral diphosophines and process for the preparation of said complexes and for their utilization as chiral catalysts in stereocontrolled reactions.