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Cat‐in‐a‐Cup: Facile Separation of Large Homogeneous Catalysts
Author(s) -
Gaikwad Anil V.,
Boffa Vittorio,
ten Elshof Johan E.,
Rothenberg Gadi
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200801116
Subject(s) - catalysis , homogeneous , acetophenone , enantioselective synthesis , dendrimer , transfer hydrogenation , homogeneous catalysis , diffusion , chemical engineering , chemistry , materials science , organic chemistry , physics , engineering , thermodynamics , ruthenium
A cat with nine lives : Catalyst separation and recycling is the bane of homogeneous catalysis. This problem is addressed by a two‐layered ceramic membrane cylinder that allows the diffusion of reactants and products in and out, but keeps the catalyst trapped. The concept is demonstrated for the enantioselective transfer hydrogenation of acetophenone to ( S )‐phenylethyl alcohol with large molecular catalysts anchored on Fréchet‐type dendrimers.