A palladium-catalyzed bay-region annulative π-extension reaction of o-halobiphenyls with o-chloropyridinecarboxylic acids was developed. A variety of azatriphenylene derivatives could be synthesized by this approach.
A Pd-catalyzed cross-coupling reaction of 2-iodobiphenyls with ortho-chloroacetophenones has been developed through C–H activation. The reaction provides a straightforward method for the construction of tribenzo[a,c,f]cyclooctanones.
An efficient Pd-catalyzed direct C–H arylation of pyrrolo[1,2-a]quinoxalines with aryl iodides is described, providing a series of 1-arylated and 1,3-diarylated pyrrolo[1,2-a]quinoxalines in good yields.
We investigated the reaction mechanisms for BBr3 induced dibenzosilole-to-dibenzoborole transformation by DFT calculations and NMR analysis.
The direct mechanocatalytic Suzuki–Miyaura coupling reaction, utilizing palladium milling balls as active catalysts, was investigated regarding the physical state of the reagents and the reaction phase.