Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1403161 | Journal of Molecular Structure | 2013 | 8 Pages |
Novel phenylboronic acids with methoxyalkyl groups at ortho position were synthesized. Molecular and crystal structures for two compounds were determined by single crystal X-ray diffraction. In both cases the O–H⋯O hydrogen-bonded dimers are the primary supramolecular motives in which the relatively short intramolecular B–O–H⋯O hydrogen bonds are observed between boronic group and oxygen atom of the ortho-substituent. Based on the CSD data for ortho-substitued boronic acids, the relation between the twist of the boronic moiety towards phenyl ring and the intramolecular H-bond angle is discussed. The intermolecular interactions between dimeric motives were investigated with the aid of Hirshfeld surface analysis. The weak C–H⋯O and C–H⋯π interactions were detected together with the agostic B⋯H ones. Sugar-binding ability of the methoxyalkyl compounds was evaluated for d-glucose, d-fructose and d-galactose by the competition assay with Alizarin Red S.
► Novel phenylboronic acids with methoxyalkyl groups at ortho position: synthesis, crystal structure. ► Hirshfeld surface analysis. ► Comparison with other ortho-substituted phenylboronic acids. ► Sugar receptor activity.