Please use this identifier to cite or link to this item: https://doi.org/10.1021/jo2011413
Title: β-amino acid catalyzed asymmetric michael additions: Design of organocatalysts with catalytic acid/base dyad inspired by serine proteases
Authors: Yang, H. 
Wong, M.W. 
Issue Date: 16-Sep-2011
Citation: Yang, H., Wong, M.W. (2011-09-16). β-amino acid catalyzed asymmetric michael additions: Design of organocatalysts with catalytic acid/base dyad inspired by serine proteases. Journal of Organic Chemistry 76 (18) : 7399-7405. ScholarBank@NUS Repository. https://doi.org/10.1021/jo2011413
Abstract: A new type of chiral β-amino acid catalyst has been computationally designed, mimicking the enzyme catalysis of serine proteases. Our catalyst approach is based on the bioinspired catalytic acid/base dyad, namely, a carboxyl and imidazole pair. DFT calculations predict that this designed organocatalyst catalyzes Michael additions of aldehydes to nitroalkenes with excellent enantioselectivities and remarkably high anti diastereoselectivities. The unusual stacked geometry of the enamine intermediate, hydrogen bonding network, and the adoption of an exo transition state are the keys to understand the stereoselectivity. © 2011 American Chemical Society.
Source Title: Journal of Organic Chemistry
URI: http://scholarbank.nus.edu.sg/handle/10635/95430
ISSN: 00223263
DOI: 10.1021/jo2011413
Appears in Collections:Staff Publications

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