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Fundamental aspects of the competition of chiral modifiers on a metal surface were investigated in a continuous-flow fixed-bed reactor using the enantioselective hydrogenation of ethyl pyruvate on Pt/Al 2 O 3 as an example. The “chiral switch” in the product composition was induced by replacing the modifier (cinchonidine, cinchonine, and quinidine) in the feed. The changes at the catalytic...
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