Removal of ruthenium by-product by supercritical fluid...

Details Removal of ruthenium by-product by supercritical fluid... Removal of ruthenium by-product by supercritical fluid...

B - Operations, Transporting

01

J

B01J 31/40 (2006.01) C07C 6/04 (2006.01)

Patent

CA 2547770

A process for removing ruthenium or ruthenium-containing compounds from a reaction mixture comprising a compound of formula (I) in an organic solvent using supercritical fluid processing techniques wherein RA, R3, R4, D and A are as defined herein. This invention has particular application for removing ruthenium-containing catalyst and ruthenium-containing catalyst by products from reaction mixtures that result from ring-closing olefin metathesis (RCM) reactions.

L'invention concerne un procédé d'élimination de ruthénium ou de composés contenant du ruthénium dans un mélange de réaction contenant un composé représenté par la formule (I) dans un solvant organique au moyen de techniques de traitement fluidique supercritique. Dans cette formule, R<SP>A</SP>, R?3¿, R?4¿, D et A sont tels que définis dans la description. Cette invention présente une application particulière pour l'élimination de catalyseurs contenant du ruthénium et de sous-produits de catalyseur contenant du ruthénium dans des mélanges de réaction qui entraînent des réactions de métathèse d'oléfine par fermeture de cycle (RCM).

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