Metal-free oxidative decarbonylative coupling of aromatic aldehydes with arenes: direct access to biaryls
作者:Ren-Jin Tang、Qing He、Luo Yang
DOI:10.1039/c4cc10155c
日期:——
A metal-free oxidative decarbonylative coupling of aromatic aldehydes with electron-rich or electron-deficient arenes to produce biaryl compounds was developed. This novel coupling was proposed to proceed via a non-chain radical homolytic aromatic substitution (HAS) type mechanism, based on the substrate scope, ortho-regioselectivity, radical trapping experiments and DFT calculation studies. With the
开发了芳香醛与富电子或缺电子的芳烃的无金属氧化脱羰基偶联剂,以生产联芳基化合物。基于底物范围,邻位区域选择性,自由基捕获实验和DFT计算研究,提出了通过非链自由基均相芳香族取代(HAS)类型的机理进行这种新型偶联。随着芳香醛和芳烃的现成可用,无金属条件应使这种偶联对于联芳基合成具有吸引力。