Journal
CHEMICAL RECORD
Volume 23, Issue 7, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/tcr.202200198
Keywords
asymmetric organocatalysis; ion pairing catalysis; H-bonding; quaternary ammonium salts; (thio)-ureas
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This article introduces the significance of (thio)-urea-containing bifunctional quaternary ammonium salts as organocatalysts and their application in asymmetric method development. It provides an overview of catalyst design and highlights the author's own contributions.
(Thio)-urea-containing bifunctional quaternary ammonium salts emerged as powerful non-covalently interacting organocatalysts over the course of the last decade. The most commonly employed catalysts in this field are either based on Cinchona alkaloids, alpha-amino acids, or trans-cyclohexane-1,2-diamine. Our group has been heavily engaged in the design and use of such catalysts, i. e. trans-cyclohexane-1,2-diamine-based ones for around 10 years now, and it is therefore the intention of this short personal account to provide an overview of the, at least in our opinion, most significant and pioneering achievements in this field by looking on catalyst design and asymmetric method development, with a special focus on our own contributions.
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