jo9b03082_si_001.pdf (4.32 MB)
Selective Carboxylate Recognition Using Urea-Functionalized Unclosed Cryptands: Mild Synthesis and Complexation Studies
journal contribution
posted on 2020-03-13, 14:35 authored by Patryk Niedbała, Maciej Majdecki, Kajetan Dąbrowa, Janusz JurczakHerein we present
the synthesis and evaluation of anion-binding
properties of 12 new receptors from the unclosed cryptand family.
Their core is built on the stable 26-membered tetraamidic macrocyclic
scaffold, whereas various alkyl and aryl urea substituents were introduced
after a yield-limiting macrocyclization step (65–98%). The
receptors strongly bind anions, in particular carboxylates, even in
a highly competitive solvent mixture (DMSO-d6 + H2O 95:5 v/v).
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unclosed cryptand familymixturereceptoraryl urea substituentsyield-limitingMild Synthesiscarboxylateevaluationsynthesiscore26- membered tetraamidic macrocycli...macrocyclizationComplexation Studies Hereinbind anionsalkylanion-binding propertiesDMSOSelective Carboxylate RecognitionUrea-Functionalized Unclosed Cryptands
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