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Download fileUse of Hypervalent Iodine Reagents in Visible Light-Promoted α‑Ketoacylations of Sulfoximines with Aryl Alkynes
journal contribution
posted on 29.10.2020, 19:17 authored by Chenyang Wang, Ding Ma, Yongliang Tu, Carsten BolmIn visible light,
sulfoximidoyl-containing hypervalent iodine reagents
react with aryl alkynes to give N-α-ketoacylated
sulfoximines in good to high yields. The process is metal- and base-free,
providing the diketonic products without the use of highly oxygenated
reagents such as peroxides. Results from mechanistic investigations
suggest the intermediacy of radicals and reveal the importance of
molecular oxygen.