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Beilstein J. Org. Chem. 2020, 16, 2903–2910, doi:10.3762/bjoc.16.239
Graphical Abstract
Figure 1: Biologically active imidazo[1,5-a]pyridines.
Scheme 1: Activation of nitroalkanes towards nucleophilic attack by amines.
Scheme 2: Mechanistic rationale.
Scheme 3: Reaction of the N-tosylate 17 with electrophilic nitroalkanes.
Scheme 4: Reaction of 2-(aminomethyl)pyridine (12) with electrophilic nitroalkanes.
Scheme 5: Reaction of the 2-(aminomethyl)quinolines 18 with electrophilic nitroalkanes.
Scheme 6: Reactivity of α-nitroacetophenone (1h) and α-nitroacetic ester (1i).
Beilstein J. Org. Chem. 2018, 14, 3078–3087, doi:10.3762/bjoc.14.287
Figure 1: Biologically relevant imidazo[1,2-a]pyridines and chromenes.
Scheme 1: Domino formation of imidazopyridines and current work.
Scheme 2: Scope of the reaction between N-(cyanomethyl)pyridinium chloride, o-hydroxybenzaldehydes, and nitro...
Scheme 3: Scope of the reaction of o-hydroxybenzaldehydes with N-(cyanomethyl)pyridinium chloride and indoles...
Scheme 4: Scope of the nucleophiles in the reaction of o-hydroxyarylaldehydes with N-(cyanomethyl)pyridinium ...
Scheme 5: N-(Cyanomethyl)thieno[2,3-c]pyridinium chloride (15) and 6-(cyanomethyl)-1-methyl-1H-pyrrolo[2,3-c]...
Figure 2: General view of the molecule 7b in the crystal state (CCDC 1849215). Anisotropic displacement param...
Scheme 6: The presumed mechanism for the formation of target chromenoimidazopyridines (reaction 1) and additi...