Pd-Catalyzed Suzuki coupling reactions of aryl halides containing basic nitrogen centers with arylboronic acids in water in the absence of added base
作者:Zhao Li、Carol Gelbaum、Zachary S. Campbell、Paul C. Gould、Jason S. Fisk、Bruce Holden、Arvind Jaganathan、Gregory T. Whiteker、Pamela Pollet、Charles L. Liotta
DOI:10.1039/c7nj03567e
日期:——
The Pd-catalyzed Suzuki coupling reactions of a series of aryl chlorides and aryl bromides containing basic nitrogen centers with arylboronicacids in water in the absence of added base are reported. The reactions proceed either partially or entirely under acidic conditions. After surveying twenty-two phosphorus ligands, high yields of products were obtained with aryl chlorides only when a bulky ligand
Electrochemical Synthesis of Carbazoles by Dehydrogenative Coupling Reaction
作者:Anton Kehl、Niclas Schupp、Valentina M. Breising、Dieter Schollmeyer、Siegfried R. Waldvogel
DOI:10.1002/chem.202003430
日期:2020.12.4
remarkably low supporting electrolyte concentration, inexpensive electrode materials, and a straightforward precursor synthesis enabling a novel access to N‐protected carbazoles by anodic N,C bond formation using directly generated amidyl radicals is reported. Scalability of the reaction is demonstrated and an easy deblocking of the benzoyl protecting group is presented.
A method for producing a biaryl compound, comprising reacting an aromatic organic compound with at least one compound selected from the group consisting of aromatic organoboron compounds and boroxine compounds, in the presence of a zero-valent nickel catalyst, phosphine ligand and base.
A method for producing a biaryl compound, comprising reacting an aromatic organic compound with at least one compound selected from the group consisting of aromatic organoboron compounds and boroxine compounds, in the presence of a zero-valent nickel catalyst, phosphine ligand and base.
An organic light-emitting device comprises a first electrode (110), a second electrode (120) facing the first electrode, an emission layer between the first electrode and the second electrode, and a hole transport region between the first electrode and the emission layer. The emission layer comprises a first compound represented by Formula 1, and the hole transport region comprises a second compound represented by Formula 2: