PROCESS FOR MAKING DIPHOSPINE-RUTHENIUM-DIAMINE COMPLEXES
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United States of America Patent
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Issued Date -
Jul 15, 2010
app pub date -
Jun 28, 2006
filing date -
Jul 1, 2005
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Abandoned
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Abstract
A process for making diphosphine-ruthenium-diamine complexes by reacting a phosphine compound with an arene ruthenium compound in a first solvent to produce an intermediate mixture comprising a diphosphine-ruthenium compound, the first solvent consisting essentially of a mixture of an aprotic solvent and a protic solvent; then removing the first solvent from the intermediate mixture to produce an intermediate solid comprising the diphosphine-ruthenium compound; and then contacting the intermediate solid comprising the diphosphine-ruthenium compound with a diamine and a second solvent to produce the diphosphine-ruthenium-diamine complex, the second solvent consisting essentially of an aprotic solvent selected from the group consisting of ethers and hydrocarbon solvents.
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