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Synfacts 2008(6): 0662-0662  
DOI: 10.1055/s-2008-1072798
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart · New York

Hydrogenation with a Pd/PSi-TiO2 System in Capillary

Contributor(s): Yasuhiro Uozumi, Takao Osako
M. Ueno, T. Suzuki, T. Naito, H. Oyamada, S. Kobayashi*
The University of Tokyo, Japan
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Publication History

Publication Date:
21 May 2008 (online)

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Significance

Palladium catalysts were immobilized on the channel wall of a capillary by using polysilane (PSi) with TiO2 in five steps. Hydrogenation reactions of various substrates using the capillary reactor were carried out to give the corresponding reduced products in 96-99% conversion and 54-99% yield (11 examples). The capillary was reused 12 times without loss of the catalytic property. No leaching of Pd was confirmed by ICP analysis after the reactions.