Helical polymer as mimetic enzyme catalyzing asymmetric aldol reaction.
Dongyue Zhang, Chonglei Ren, Wantai Yang, Jianping Deng
Index: Macromol. Rapid Commun. 33(8) , 652-7, (2012)
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Abstract
This Communication reports optically active helical substituted polyacetylenes which solely catalyzed asymmetric Aldol reaction between cyclohexanone and p-nitrobenzaldehyde; more importantly the helical structures are found to play crucial roles in the asymmetric catalysis, with a remarkable yield and ee (both up to 80%). A synergic effect is observed between the helical structures in the polymer main chains and the pendent prolinamide moieties for successfully catalyzing the asymmetric reaction. The role of the helical polymer backbones is further verified by tuning the relative helical structure content.Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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