Skeletal Editing Via CH→N Atom Swapping in Fused Imidazoles: Access to Triazolo[5,1-a]isoquinoline, Triazolo[1,5-a]quinoline, and Triazolo-[1,5-a]pyridines Frameworks Herein, we report a practical and efficient carbon-to-nitrogen atom swap in 2-phenylimidazo[2,1-a]isoquinoline and 2-phenylimidazo[1,2-a]quinoline scaffolds, enabling their direct conversion to the corresponding 2-phenyl-[1,2,4]triazolo[5,1-a]isoquinoline and 2-phenyl-[1,2,4]triazolo[1,5-a]quinoline analogues. This transformation exploits the intrinsic reactivity of the parent heterocycles to undergo a cascade sequence involving oxidative cleavage, amination, and cyclization (OCAC) under mild conditions with functional group tolerance.

Skeletal Editing Via CH→N Atom Swapping in Fused Imidazoles: Access to Triazolo[5,1-a]isoquinoline, Triazolo[1,5-a]quinoline, and Triazolo-[1,5-a]pyridines Frameworks | Organic Letters #SkeletalEditing #Atomswap #OrgLett #Hypervalentiodine @acs.org @pubs.acs.org pubs.acs.org/doi/full/10....

Atom-swapping in a saturated heterocycle? We report a photocatalytic transmutation strategy in @nature.com that exchanges O within an oxetane for N, S, C & even dual atoms, affording various non-aromatic cyclic pharmacophores. #skeletalediting #atomswap #photocatalysis www.nature.com/articles/s41...