Ruthenium-BINAP asymmetric hydrogenation catalyst
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United States of America Patent
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Mar 30, 1993
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app pub date -
Mar 6, 1991
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Jun 22, 1989
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Abstract
A ruthenium-phosphine complex represented by the formula: [RuXY(BINAP)].sub.n wherein n is an integer of from 1 to about 10; and X and Y independently represent nonchelating anionic ligands.
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