| Literature DB >> 23978747 |
Agnieszka Adamczyk-Woźniak1, Krzysztof M Borys, Karolina Czerwińska, Błażej Gierczyk, Michał Jakubczyk, Izabela D Madura, Andrzej Sporzyński, Ewelina Tomecka.
Abstract
Catechol esters of ortho-methoxyalkylphenylboronic acids have been synthesized and characterized by (17)O NMR spectroscopy. The results were compared with the data for the parent acids. The influence of intramolecular and intermolecular hydrogen bonds on the properties of the boronic acids has been discussed. The (17)O NMR data for the boronic esters proved that there are no O → B interactions in the investigated compounds. This fact is connected with weak Lewis acidity of the parent acids and their low sugars' receptors activity. Crystal structure of ortho-methoxyphenylboronic acid catechol ester was determined.Entities:
Keywords: (17)O NMR; Boronic acids; Boronic esters; Hydrogen bond
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Year: 2013 PMID： 23978747 DOI： 10.1016/j.saa.2013.07.091
Source DB: PubMed Journal: Spectrochim Acta A Mol Biomol Spectrosc ISSN： 1386-1425 Impact factor: 4.098