Mild and Selective Catalytic Hydrogenation of the C=C Bond in ,β-Unsaturated Carbonyl Compounds Using Supported Palladium Nanoparticles

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• 作者：Dr. Anuja Nagendiran ; Vlad Pascanu ; Dr. Antonio Bermejo Gó ; mez ; Greco Gonzá ; lez Miera ; Dr. Cheuk-Wai Tai ; Dr. Oscar Verho ; Prof. Dr. Bel&#233 ; n Martí ; n-Matute and Prof. Dr. Jan-E. Bckvall
• 刊名：Chemistry - A European Journal
• 出版年：2016
• 出版时间：May 17, 2016
• 年：2016
• 卷：22
• 期：21
• 页码：7184-7189
• 全文大小：1022K
• ISSN：1521-3765

文摘

Chemoselective reduction of the C=C bond in a variety of α,β-unsaturated carbonyl compounds using supported palladium nanoparticles is reported. Three different heterogeneous catalysts were compared using 1 atm of H₂: 1) nano-Pd on a metal–organic framework (MOF: Pd⁰-MIL-101-NH₂(Cr)), 2) nano-Pd on a siliceous mesocellular foam (MCF: Pd⁰-AmP-MCF), and 3) commercially available palladium on carbon (Pd/C). Initial studies showed that the Pd@MOF and Pd@MCF nanocatalysts were superior in activity and selectivity compared to commercial Pd/C. Both Pd⁰-MIL-101-NH₂(Cr) and Pd⁰-AmP-MCF were capable of delivering the desired products in very short reaction times (10–90 min) with low loadings of Pd (0.5–1 mol %). Additionally, the two catalytic systems exhibited high recyclability and very low levels of metal leaching.