Use of microencapsulated transition metal reagents for reactions in supercritical fluids
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United States of America Patent
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Issued Date -
Jan 13, 2005
app pub date -
May 25, 2004
filing date -
Dec 1, 2001
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Abandoned
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Abstract
There is provided processes for metal mediated reactions, particularly cross coupling and carbometallation reactions, wherein the metal is present as a catalyst system comprising a catalyst microencapsulated within a permeable polymer microcapsule shell and the reaction is carried out under super-critical or near super-critical conditions. Preferred metal-mediated cross coupling reactions include Heck, Suzuki, Sonogashira and Stille reactions. Preferred carbometallation reactions include hydroformylations.
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