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A solid-supported peptide-catalyzed continuous-flow (CF) process was developed for asymmetric aldol reactions. The catalyst was readily synthesized and immobilized by solid-phase peptide synthesis (SPPS) on a swellable polymer support in one single step. Ignoring the peptide cleavage from the resin means no work-up, no purification, and no product loss. After thorough optimization of the reaction...
Experimental evidence (measured by NMR) is given for the correlation between the solution-state concentration of the nucleophilic 1:1 modifier–substrate complex and the ee on enantioselective hydrogenation of ketopantolactone using Pt–β-isocinchonine chiral catalyst. The relationship displays a saturation-type curve, which may indicate an underlying adsorption process involving the catalytically relevant...
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