• Title/Summary/Keyword: Lindlar catalyst

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Palladium Nanoparticles Suspended in an Ionic Liquid as Reusable Catalyst for Alkyne Semihydrogenation

  • Lee, Jin-Kyu;Kim, Dae-Won;Cheong, Min-Serk;Lee, Hyun-Joo;Cho, Byung-Won;Kim, Hoon-Sik;Mukherjee, DebKumar
    • Bulletin of the Korean Chemical Society
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    • v.31 no.8
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    • pp.2195-2200
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    • 2010
  • The reaction of $PdCl_2$ dispersed in tetra-n-butylammonium bromide with tributyl amine at $120^{\circ}C$ under argon leads to stable isolable nanometric particles. X-ray diffraction analysis of the material indicated that it is constituted of Pd(0). Transmission electron microscopy analysis of the particles dispersed in acetone shows the mean particle size distribution ($4{\pm}1\;nm$). The isolated palladium nanoparticles can be dispersed in an ionic liquid or in methanol or used in solventless condition for selective hydrogenation of 2-hexyne under mild reaction conditions(0.2 MPa and $20^{\circ}C$). The commercial variety of the Lindlar catalyst was also studied for comparative investigations.