Pentafluoro(aryl)‐λ
<sup>6</sup>
‐tellanes and Tetrafluoro(aryl)(trifluoromethyl)‐λ
<sup>6</sup>
‐tellanes: From SF
<sub>5</sub>
to the TeF
<sub>5</sub>
and TeF
<sub>4</sub>
CF
<sub>3</sub>
Groups
作者:Dustin Bornemann、Cody Ross Pitts、Carmen J. Ziegler、Ewa Pietrasiak、Nils Trapp、Sebastian Kueng、Nico Santschi、Antonio Togni
DOI:10.1002/anie.201907359
日期:2019.9.2
The TeF5 group is significantly underexplored as a highly fluorinated substituent on an organic framework, despite it being a larger congener of the acclaimed SF5 group. In fact, only one aryl-TeF5 compound (phenyl-TeF5 ) has been reported to date, synthesized using XeF2 . Our recently developed mild TCICA/KF approach to oxidative fluorination provides an affordable and scalable alternative to XeF2
尽管TeF5基团是广受赞誉的SF5基团的较大同源物,但它在有机骨架上的高度氟化取代基却未得到充分开发。实际上,迄今为止,仅报道了一种使用XeF2合成的芳基-TeF5化合物(苯基-TeF5)。我们最近开发的温和的TCICA / KF氧化氟化方法为XeF2提供了负担得起且可扩展的替代产品。使用这种方法,我们报告了广泛表征的芳基-TeF5化合物的范围,以及该化合物类别的首批SC-XRD数据。该方法还扩展到迄今未知的芳基-TeF4 CF3化合物的合成和结构研究。此外,初步的反应性研究揭示了与以前有关苯基TeF5的文献不一致的地方。