
pmid: 26933945
AbstractThe synthesis of novel spatially directional multivalent resorcin[4]arene cavitand glycoconjugates (RCGs) and their ability to catalyze organic reactions is reported. The β‐d‐glucopyranoside moieties on the upper rim of the “bowl”‐shaped resorcin[4]arene cavitand core are capable of multiple hydrogen‐bond interactions resulting in a pseudo‐cavity, which has been investigated for organic transformations in aqueous media. The RCGs have been demonstrated to catalyze thiazole formation, thiocyanation, copper(I)‐catalyzed azide alkyne cycloaddition (CuAAC), and Mannich reactions; they impart stereoselectivity in the three‐component Mannich reaction. Thermodynamic values obtained from 1H diffusion‐ordered spectroscopy (DOSY) experiments suggest that the upper saccharide cavity of the RCG and not the resorcin[4]arene cavity is the site of the complexation event.
Azides, Cycloaddition Reaction, Alkynes, Phenylalanine, Thermodynamics, Calixarenes, Glycoconjugates, Catalysis, Copper
Azides, Cycloaddition Reaction, Alkynes, Phenylalanine, Thermodynamics, Calixarenes, Glycoconjugates, Catalysis, Copper
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