Metal complexes for hydrogenation of unsaturated compounds
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United States of America Patent
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Aug 10, 2004
Grant Date -
Nov 21, 2002
app pub date -
Dec 4, 2001
filing date -
Dec 4, 2000
priority date (Note) -
Expired
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Abstract
The cationic iridium carbene complexes [Ir(cod)(N)(L)]X have been synthesized by reaction of [Ir(cod)(py).sub.2 ]PF.sub.6 with L or NL ligands. Complexes of this type are active hydrogenation catalysts capable of hydrogenating simple olefins at room temperature and atmospheric pressure of hydrogen or by transfer hydrogenation.
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