Oxidative Intramolecular 1,2-Amino-Oxygenation of Alkynes under AuI /AuIII Catalysis: Discovery of a Pyridinium-Oxazole Dyad as an Ionic Fluorophore.
Aslam C ShaikhDnyanesh S RanadePattuparambil R RajamohananPrasad P KulkarniNitin T PatilPublished in: Angewandte Chemie (International ed. in English) (2016)
Oxidative intramolecular 1,2-amino-oxygenation reactions, combining gold(I)/gold(III) catalysis, is reported. The reaction provides efficient access to a structurally unique ionic pyridinium-oxazole dyad with tunable emission wavelengths. The application of these fluorophores as potential biomarkers has been investigated.