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Beilstein J. Org. Chem. 2019, 15, 2029–2035, doi:10.3762/bjoc.15.199
Graphical Abstract
Scheme 1: Previously reported synthetic methods for the preparation of imidazo[2,1-b]selenoazoles.
Figure 1: (a) Ortep drawing of 2a (50% probability, only one of two independent molecules is shown) and (b) p...
Figure 2: Cs2CO3-mediated cyclization of 1-(2-bromoaryl)imidazoles with Se. Reaction conditions: 1 (0.5 mmol)...
Figure 3: Absorption spectra of selected compounds (2a, 10 and 11) in CHCl3.
Scheme 2: Control reactions.
Scheme 3: Proposed mechanism.