An expeditious approach to access 2-arylimidazo[1,2-a]pyridin-3-ol from 2-amino pyridine through a novel Petasis based cascade reaction

- Expeditious cascade protocol for the synthesis of functionalized imidazo[1,2-a]pyridin-3-ols.
- A three-component Petasis reaction followed by a cascade cyclization.
- Superior to the existing procedures for the synthesis of imidazo-pyridin-3-ol analogues.