Optically active diphosphines, preparation thereof according to a process for the resolution of the racemic mixture and use thereof
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United States of America Patent
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Jan 27, 2004
Grant Date -
Jun 13, 2002
app pub date -
Feb 19, 2002
filing date -
Dec 28, 1994
priority date (Note) -
Expired
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Abstract
New optically active bis[1-phospha-2,3-diphenyl-4,5-dimethylnorbornadiene] diphosphines and new optically active transition metal complexes with said phosphines are described. The complexes are useful as catalysts to promote hydrogenation of substrates.
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