ol1c00655_si_001.pdf (11.36 MB)
Acyl Radicals from α‑Keto Acids: Metal-Free Visible-Light-Promoted Acylation of Heterocycles
journal contributionposted on 2021-03-29, 19:14 authored by Hu-Lin Zhu, Fan-Lin Zeng, Xiao-Lan Chen, Kai Sun, Hao-Cong Li, Xiao-Ya Yuan, Ling-Bo Qu, Bing Yu
A general and metal-free visible-light-induced decarboxylative arylation procedure at room temperature was described for the construction of acylated heterocyclic derivatives, such as benzimidazo/indolo[2,1-a]isoquinolin-6(5H)-ones, aroylazaspiro[4.5]trienones, thioflavones, and so on. This practical arylation procedure was conducted by using 2,4,5,6-tetra(9H-carbazol-9-yl)isophthalonitrile (4CzIPN) as a photocatalyst under mild conditions, which avoided the use of an additional base, traditional heating, and metal reagents.