Pyridine•BrF<sub>3</sub>, the Missing Link for Clean Fluorinations of Aromatic Derivatives
作者:Youlia Hagooly、Shlomo Rozen
DOI:10.1021/ol3000348
日期:2012.2.17
This work demonstrates the unique features of the never used before Py center dot BrF3 complex in the field of aromatic organic fluorinations. The main disadvantage of the noncomplexed BrF3 is the fact that usually, in addition to the desired fluorination, a parallel electrophilic aromatic bromination takes place as well. Use of the Py center dot BrF3 complex reduces this electrophilic bromination, which is observed with most reagents based on fluorine and bromine [BrF].
Synthesis of difluoroaryldioxoles using BrF<sub>3</sub>
作者:Youlia Hagooly、Michael J. Welch、Shlomo Rozen
DOI:10.1039/c0ob00571a
日期:——
different aromatic and heteroaromatic difluorodioxole derivatives has been developed. The starting materials were catechols, which, after treatment with thiophosgene, formed at 0 °C the respective thiodioxoles. The latter were reacted for a short time with commercially available bromine trifluoride, producing potentially biologically important difluoroaryldioxoles in moderate to high yields.