K. Kowalska, Agnieszka Adamczyk-Woźniak, Patrycja Gajowiec
Jul 1, 2016
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Influential Citations
18
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Journal
Journal of Fluorine Chemistry
Abstract
Abstract Four isomeric fluoro-2-formylphenylboronic acids were synthesized and characterized by 1H, 13C, 19F and 17O NMR. Molecular and crystal structure of two compounds was determined by single crystal XRD method. pKa values of all the isomers have been determined by spectrophotometric method and compared with the results for the corresponding benzoxaboroles as well as fluoro- and formylphenylboronic acids. Tautomeric equilibrium with cyclic benzoxaborole form was investigated. The influence of position of fluorine substituents on the properties of investigated compounds is discussed.