| Title | : | Sol–gel entrapped chiral rhodium and ruthenium complexes as recyclable catalysts for the hydrogenation of itaconic acid |
| Authors | : | Faina Gelman, David Avnir, Herbert Schumann, Jochanan Blum |
| : | Journal of Molecular Catalysis A: Chemical 146 (1999) 123–128 |
Abstract
Chiral Ru–BINAP, Rh–DIOP and Rh–BPPM complexes have been physically entrapped in sol–gel matrices. The resulting materials are recyclable leach-proof catalysts for enantioselective hydrogenation of itaconic acid. Chiral methylsuccinic acid of o.p. up to 78% is obtained. The complexes, including the water insoluble Ru–BINAP derivatives, react both in organic and in aqueous media.
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