A novel method for the Palladium-catalyzed direct arylation of dithienopyrroles (DTP) was developed and presented. By carefully selecting the catalytic system, Pd source, ligand, and additives, we achieved either selective N-arylation or unprecedented β-arylation and β,β’-diarylation of the DTP core. For N-substituted DTPs, we obtained regioselective arylation of the α-position(s). All in all, a series of novel regioselectively substituted DTPs were straightforwardly prepared and can be applied as building blocks for organic electronic materials. The results are described in our latest publication with the title „Tunable Regioselectivity in C-H-Activated Direct Arylation Reactions of Dithieno[3,2-b:2’,3’-d]pyrroles” which just was published online in Chemistry-A European Journal 2023, doi.org/10.1002/chem.202301867.
https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.202301867