2021
DOI: 10.24820/ark.5550190.p011.579
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(Diacetoxyiodo)benzene mediated metal-free C(sp2)-H phenylselenation of imidazo[1,2-a]pyridines and imidazo[2,1-b]thiazoles using diphenyl diselenide

Abstract: Metal-free (diacetoxy)iodobenzene-mediated C(sp 2 )-H phenylselenation of imidazo[1,2-a]pyridines and imidazo[2,1-b]thiazoles using diphenyl diselenide has been developed. This protocol exhibits broad substrate scope with good to excellent yields of the phenyl selenation product of imidazoheterocycles under mild conditions in short reaction time.

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Cited by 3 publications
(2 citation statements)
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“…Numerous aryl-Se-heteroaryl compounds that are unsymmetrical exhibit a variety of pharmacological traits, including anticancer, antioxidant, anti-proliferative, antibacterial, and anticholinesterase actions. Diphenyl diselenide was used by Karade et al to enable metal-free (diacetoxy)iodobenzene-mediated C(sp 2 )-H phenylselenation of imidazo[1,2-a]pyridines and imidazo[2,1-b]thiazoles (33) in the presence of PIDA [19]. The imidazoheterocycle phenyl selenation product (34) of this procedure demonstrated broad substrate scope, good to outstanding yields, and rapid reaction times (Scheme 5).…”
Section: C-se Bond Formationmentioning
confidence: 99%
“…Numerous aryl-Se-heteroaryl compounds that are unsymmetrical exhibit a variety of pharmacological traits, including anticancer, antioxidant, anti-proliferative, antibacterial, and anticholinesterase actions. Diphenyl diselenide was used by Karade et al to enable metal-free (diacetoxy)iodobenzene-mediated C(sp 2 )-H phenylselenation of imidazo[1,2-a]pyridines and imidazo[2,1-b]thiazoles (33) in the presence of PIDA [19]. The imidazoheterocycle phenyl selenation product (34) of this procedure demonstrated broad substrate scope, good to outstanding yields, and rapid reaction times (Scheme 5).…”
Section: C-se Bond Formationmentioning
confidence: 99%
“…Specific topics of these papers include the following: theoretical and computational studies of HI compounds, [2][3][4] structural studies, 5 development of new synthetic approaches to HI reagents, [6][7][8][9] photochemical reactions involving HI chemistry, 10,11 industrial applications of hypervalent polyiodides, 12 and numerous synthetic applications of HI reagents. [13][14][15][16][17][18][19][20] Part 3 of the HI series will be published in 2022 covering all topics of iodine chemistry involving hypervalent species and halogen bonding.…”
mentioning
confidence: 99%