Mesoporous carbon nitride (mpg-C(3)N(4)) polymer can function as a metal-free photocatalyst to activate O(2) for the selective oxidation of benzyl alcohols with visible light, avoiding the cost, toxicity, and purification problems associated with corresponding transition-metal systems. By combining the surface basicity and semiconductor functions of mpg-C(3)N(4), the photocatalytic system can realize a high catalytic selectivity to generate benzaldehyde. The metal-free photocatalytic system also selectively converts other alcohol substrates to their corresponding aldehydes/ketones, demonstrating a potential pathway of accessing traditional mild radical chemistry with nitroxyl radicals.
Coupling on sunshine: A simple and efficient synthesis of benzoxazoles, benzimidazoles, and benzothiazoles is realized through a one‐pot preparation driven by a photocatalytic cascade reaction. Carbon nitride and visible light are employed to achieve this metal‐free aerobic oxidation of amines to imines (see scheme; mpg‐C3N4=mesoporous graphite carbon nitride).
Ein echter Sonnenschein: Eine einfache und effiziente Synthese von Benzoxazolen, Benzimidazolen und Benzothiazolen gelingt mithilfe eines Eintopfverfahrens, das durch eine photokatalytische Kaskadenreaktion angetrieben wird. Bei dieser metallfreien aeroben Oxidation von Aminen zu Iminen kommen Kohlenstoffnitrid und sichtbares Licht zum Einsatz (siehe Schema; mpg‐C3N4=mesoporöses graphitisches Kohlenstoffnitrid).
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.