A palladium-catalyzed multicomponentreaction (MCR) involving aryne, CO, and aniline is established for straightforward assembly of a phenanthridinone scaffold through C–H bond activation. Free combination with multiple kinds of readily available anilines and arynes is facilely achieved for phenanthridinone construction without prefunctionalization. Representative natural products were subsequently
The invention relates to compounds which are suitable for use in electronic devices, and electronic devices, in particular organic electroluminescent devices, containing said compounds.
本发明涉及适用于电子设备的化合物,以及含有上述化合物的电子设备,特别是有机电致发光设备。
Pd-Catalyzed Decarbonylative sp2 C–H Arylation: Construction of Five- and Six-Membered (Hetero)Cyclic Compounds
The cycliccompounds have wide applications in the design and synthesis of drugs and materials; thus, their efficient construction attracts much attention from the synthetic community. In this letter, we report an efficient method for preparing cycliccompounds starting from the readily available carboxylic acids. This reaction takes place through intramolecular decarbonylative sp2 C–H arylation, enabling
6-Phenanthridinones and their heterocyclic analogues were synthesized through a one-pot procedure based on consecutive Pd-catalyzed aryl-aryl and N-aryl coupling from iodoarenes ortho-substituted by electron-releasing substituents and amides of o-bromoarene- and heteroarenecarboxylic acids.
Synthesis of Heterocycles via Palladium-Catalyzed C-H Activation/Cyclization of Diazonium Salts (Part III): Phenanthridin-6-(5H)-ones
A series of phenanthridin-6-(5H)-ones were synthesized through a palladium-catalyzed C-H activation/cyclization strategy using diazonium salts in good yields. The best conditions included Pd(OAc)(2) as the catalyst, PPh3 as the ligand, toluene as the solvent, K2CO3 as the base and 60 degrees C as the optimal temperature.