Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1999-04-05
2000-10-17
Rotman, Alan L.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
549216, 549217, B01J 2340, C07F 928
Patent
active
061331910
ABSTRACT:
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.
REFERENCES:
Bertens et al, Tetrahedron, Synthesis and Resolution of 2,2'-bis diphenyl, pp. 285-292, Jul. 1996.
Beninciri et al, Jornal of Chem Society. Chem Commun. pp. 685-686, Jun. 1995.
Chemical Abstracts, vol. 089, No. 5, Jul. 31, 1978, Columbus, Ohio.
Antognazza Patrizia
Benincori Tiziana
Brenna Elisabetta
Cesarotti Edoardo
Sannicolo Francesco
Desai Rita
Italfarmaco Sud S.p.A.
Rotman Alan L.
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