Tuning the Molecular Rotor Dynamics of Pyrrolo[3,4‐b]Pyridin‐5‐Ones: Steric and Electronic Control of Environmental Sensing
A series of seven pyrrolo[3,4‐b]pyridin‐5‐ones were synthesized via a one‐pot process involving an Ugi‐Zhu reaction followed by a cascade sequence (N‐acylation/aza Diels–Alder cycloaddition/decarboxylation/dehydration) incorporating different substituents no aromatic and aromatic such as furan, tetrahydrofuran, and pyr...