Visible-Light-Induced Metal-/Photocatalyst-Free C–H Bond Imidation of Arenes
2020
Kuribara, Takahito | Nakajima, Masaya | Nemoto, Tetsuhiro
In this study, a visible-light-induced intermolecular C–H bond imidation of arenes was achieved at ambient condition. By using simple phthalimide with (diacetoxyiodo)benzene and molecular iodine, direct metal-/photocatalyst-free C–N bond formation was achieved. The imidation protocol was designed by using time-dependent density functional theory calculations and experimentally demonstrated for 28 substrates with as high as 96% yield. Mechanistic studies indicated that radical-mediated aromatic substitution occurred via photolysis of N-iodophthalimide under visible-light irradiation
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