Preparation of chiral catalysts based on ruthenium and phosphorus complexes
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United States of America Patent
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Jun 28, 1994
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N/A
app pub date -
Feb 21, 1992
filing date -
Aug 23, 1989
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Expired
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Abstract
Method for the preparation of a chiral catalyst, comprised of an organic complex of ruthenium and phosphorus, consisting in heating a complex of ruthenium with a phosphine, within an organic liquid, inert in relation to substances in presence, the heated complex being based on a diene and an allylic compound; the product obtained following the heating is subjected to the action of an acid in an organic solvent.
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