Photoarylation of Iodocarboranes with Unactivated (Hetero)Arenes: Facile Synthesis of 1,2‐[(Hetero)Aryl]
<sub>
<i>n</i>
</sub>
‐
<i>o</i>
‐Carboranes (
<i>n</i>
=1,2) and
<i>o</i>
‐Carborane‐Fused Cyclics
作者:Hangcheng Ni、Zaozao Qiu、Zuowei Xie
DOI:10.1002/anie.201610810
日期:2017.1.16
Photoarylation of iodocarboranes with unactivated arenes/heteroarenes at room temperature has been achieved, for the first time, thus leading to the facile synthesis of a large variety of cage carbon mono(hetero)arylated and di(hetero)arylated o‐carboranes. This work represents a clean, efficient, transition‐metal‐free, and cheap synthesis of functionalized carboranes, which has significant advantages over
Palladium-Catalyzed Selective Fluorination of <i>o</i>-Carboranes
作者:Zaozao Qiu、Yangjian Quan、Zuowei Xie
DOI:10.1021/ja405808t
日期:2013.8.21
A Pd(II)-catalyzed direct selective fluorination reaction of carboranes using a F+ reagent has been developed, leading to a series of polyfluorocarboranes in high isolated yields. The mechanism involving electrophilic B-H activation, oxidation of Pd(II) by F+ species, and reductive elimination is proposed.