《Carbazole-bridged NCN-pincer palladium complex catalyzed direct C-H arylation reaction of azoles》 was published in Youji Huaxue in 2020. These research results belong to Song, Wenyue; Rao, Xiaofeng; Bu, Qingqing; Liu, Ning. Electric Literature of C5H3BrClN The article mentions the following:
A new type of pincer palladium complexes C1∼C6 based on the strong donor strength of carbazoles skeleton were synthesized. The air- and moisture-stable complexes C1∼C6 act as efficient catalysts for the direct arylation of azoles with (hetero)aryl bromides in good to excellent yields with broad substrate scope used KOAc as sole base under aerobic conditions. It was demonstrated that this developed protocol was used as catalytic system for the direct C-H bond arylation of thiazoles under relatively mild reaction conditions at a low catalyst loading of 0.5 mol%. The results came from multiple reactions, including the reaction of 5-Bromo-2-chloropyridine(cas: 53939-30-3Electric Literature of C5H3BrClN)
5-Bromo-2-chloropyridine(cas: 53939-30-3) belongs to pyridine. Pyridines are often used as catalysts or reagents; particular notice has been paid recently to how pyridine coordinates to metal centers enabling a wide range of valuable reactions. Electric Literature of C5H3BrClN