刊名:Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
出版年:2013
出版时间:December, 2013
年:2013
卷:116
期:Complete
页码:616-621
全文大小:558 K
文摘
Catechol esters of ortho-methoxyalkylphenylboronic acids have been synthesized and characterized by 17O 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 17O NMR data for the boronic esters proved that there are no O ¡ú 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.