Application of a DIB/BBr<sub>3</sub> protocol in metal-free aryl coupling reactions
作者:Liangkun Pan、Ka-Mei Lee、Zhihai Ke、Ying-Yeung Yeung
DOI:10.1039/d2nj04478a
日期:——
Metal-free direct C–H functionalization reactions are a promising approach to convert hydrocarbon feedstock into value-added molecules. Diacetoxyl iodobenzene (DIB) is a benchtop stable hypervalent iodine compound that is frequently used as a non-metal oxidant in C–H functionalization. However, DIB has a relatively low reactivity and an acid promoter is usually required to achieve satisfactory performance
无金属直接 C-H 官能化反应是将碳氢化合物原料转化为增值分子的有前景的方法。二乙酰氧基碘苯 (DIB) 是一种台式稳定的高价碘化合物,经常用作 C-H 官能化中的非金属氧化剂。然而,DIB 的反应性相对较低,通常需要酸促进剂才能达到令人满意的性能。在此,我们报告了使用 DIB/BBr 3协议进行芳烃的无金属 C(sp 2 )-H 活化/交叉偶联。