Hexagonally packed Pd nanoarray catalyst for liquid-phase enantioselective hydrogenation of acetophenone to R-(+)-1-phenylethanol in the presence of S-proline

Hexagonally packed Pd nanoarray catalyst for liquid-phase enantioselective hydrogenation of acetophenone to R-(+)-1-phenylethanol in the presence of S-proline

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Hexagonally packed Pd nanoarray catalyst was prepared via the "two solvents" strategy with mesoporous molecular sieve SBA-15 as a hard template. By using S-proline as the chiral modifier, the catalyst exhibited superior activity and selectivity in liquid-phase hydrogenation of acetophenone...

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Bibliographic Details
Main Authors: Chen, X, Lou, Z, Qiao, M, Fan, K, Tsang, S, He, Y
Format: Journal article
Language:English
Published: 2008
Description
Summary:Hexagonally packed Pd nanoarray catalyst was prepared via the "two solvents" strategy with mesoporous molecular sieve SBA-15 as a hard template. By using S-proline as the chiral modifier, the catalyst exhibited superior activity and selectivity in liquid-phase hydrogenation of acetophenone to R-(+)-1-phenylethanol with up to 100% chemoselectivity and 28.8% enantiomeric excess. The presence of S-proline and the regular hexagonal mesostructure of the Pd nanoarray catalyst are crucial for its superior catalytic performance. © 2008 American Chemical Society.

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