Identification of catalyst surface species during asymmetric platinum-catalysed hydrogenation in a "supercritical" solvent.
In situ attenuated total reflection infrared spectroscopy studies during the enantioselective hydrogenation of ethyl pyruvate in "supercritical" ethane over a chirally modified Pt/Al(2)O(3) catalyst show the preferential adsorption of ethyl pyruvate as cis-conformer and indicate a hydrogen bond interaction of this species with the co-adsorbed modifier cinchonidine.
Schneider
Michael S
MS
Institute for Chemical and Bioengineering, ETH Hönggerberg, Zürich, Switzerland.
Urakawa
Atsushi
A
Grunwaldt
Jan-Dierk
JD
Bürgi
Thomas
T
Baiker
Alfons
A