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- W4366251481 abstract "An efficient copper iodide-mediated synthesis of 3-cyanoimidazo[1,2-a]pyridines (4a-4m) from readily available methyl ketones, amino pyridines, and ethyl(ethoxymethylene)cyanoacetate is described. Copper(I)-catalyzed annulation between different aminopyridines and various methyl ketones resulted in the formation of imidazo[1,2-a]pyridines (IPs). The resulting IPs undergo C3 cyanation by cyanide anion generated from C(sp2)-CN bond cleavage of ethyl(ethoxymethylene)cyanoacetate. Mechanistic studies indicate that the cyanation of IP derivatives proceeds through a two-step sequence: initial iodination and then cyanation. The one-pot reaction has a wide substrate scope and high functional group tolerance and can be safely conducted on a gram scale. Further, we have studied the light-emitting properties of synthesized compounds. The absorption and emission spectra of compounds 4a and 4f were experimentally and computationally analyzed. Also, HOMO/LUMO distributions of compounds 4a and 4f were elucidated theoretically." @default.
- W4366251481 created "2023-04-20" @default.
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- W4366251481 date "2023-08-01" @default.
- W4366251481 modified "2023-09-26" @default.
- W4366251481 title "Copper iodide mediated telescoped synthesis of 3-cyanoimidazo[1,2-a]pyridines, photophysical and DFT studies" @default.
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- W4366251481 doi "https://doi.org/10.1016/j.molstruc.2023.135612" @default.
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