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Highly chemoselective hydrogenation method using novel finely dispersed palladium catalyst on silk-fibroin: its preparation and activity

Takashi Ikawa, Hironao Sajiki* and Kosaku Hirota

*Laboratory of Medicinal Chemistry, Gifu Pharmaceutical University, 5-6-1 Mitahora-higashi, Gifu 502-8585, Japan, Email: sajikigifu-pu.ac.jp

T. Ikawa, H. Sajiki, K. Hirota, Tetrahedron, 2005, 61, 2217-2231.

DOI: 10.1016/j.tet.2004.11.080


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Abstract

A palladium-fibroin complex catalyzed the chemoselective hydrogenation of acetylenes, olefins and azides in the presence of aromatic ketones and aldehydes, halides, N-Cbz protective groups and benzyl esters which are readily hydrogenated using Pd/C or Pd/C(en) as a catalyst.

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Pd/C-Catalyzed Chemoselective Hydrogenation in the Presence of Diphenylsulfide

A. Mori, Y. Miyakawa, E. Ohashi, T. Haga, T. Maegawa, H. Sajiki, Org. Lett., 2006, 8, 3279-3281.


Key Words

Silk-fibroin, Hydrogenation, Palladium catalyst, Chemoselective, Hydrogen


ID: J72-Y2005-2850