Amine-substituted biphenyldiphosphines
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United States of America Patent
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Sep 15, 2009
Grant Date -
Dec 7, 2006
app pub date -
Apr 5, 2004
filing date -
Apr 7, 2003
priority date (Note) -
Expired
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Abstract
1,1′-Biphenyl-2,2′-diphosphines having at least one amine substituent in the para position relative to the phosphine group and having the formulaeare ligands for metal complexes which serve as catalysts for asymmetric addition reactions of prochiral organic compounds and whose catalytic properties can be tailored specifically to particular substrates by substitution of the amine group.
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