@article{21776,
  abstract     = {Pyridyl motifs equipped with N-substituents can be powerful ligands for catalysis, yet their broader adoption is limited by the lack of a practical method to prepare these scaffolds. We report a modular, robust, and versatile Buchwald–Hartwig amination protocol that enables the rapid synthesis of bipyridine, phenanthroline, terpyridine, and pybox ligands bearing dialkylamine, diarylamine, and heteroaromatic N-substituents. These conditions streamline ligand library synthesis and will facilitate systematic studies in catalysis and related applications.},
  author       = {Petrik, Adam and Bena, Aleksander and Baunis, Haralds and Kelch, Riley M. and Yoon, Tehshik P. and Pieber, Bartholomäus},
  issn         = {1615-4169},
  journal      = {Advanced Synthesis & Catalysis},
  number       = {9},
  publisher    = {Wiley},
  title        = {{Facile access to N-substituted pyridyl ligands}},
  doi          = {10.1002/adsc.70417},
  volume       = {368},
  year         = {2026},
}

@article{19599,
  abstract     = {Advances in nickel catalysis have significantly broadened the synthetic chemists’ toolbox, particularly through methodologies leveraging paramagnetic nickel species via photoredox catalysis or electrochemistry. Key to these reactions is the oxidation state modulation of nickel via single-electron transfer events. Recent mechanistic studies indicate that C(sp2)–heteroatom bond formations proceed through NiI/NiIII cycles. Related C(sp2)–C(sp3) cross-couplings operate via the photocatalytic generation of C-centered radicals and a catalytic cycle that involves Ni0, NiI, and NiIII species. Here, we show that light-mediated nickel-catalyzed C(sp2)–C(sp3) bond formations can be carried out without using exogenous photoredox catalysts but with a photoactive ligand. In a pursuit of expanding the scope of C(sp2)–heteroatom couplings using donor–acceptor ligands, we identified a photoactive nickel complex capable of catalyzing cross-couplings between aryl halides and benzyltrifluoroborate salts. Mechanistic investigations provide evidence that transmetalation between a photochemically generated NiI species and the organoboron compound is the key catalytic step in a NiI/NiIII catalytic cycle under these conditions.},
  author       = {Anghileri, Lucia and Baunis, Haralds and Bena, Aleksander and Giannoudis, Christos and Burke, John H. and Reischauer, Susanne and Merschjann, Christoph and Wallick, Rachel F. and Al Said, Tarek and Adams, Callum E and Simionato, Gianluca and Kovalenko, Sergey and Dell’Amico, Luca and Van Der Veen, Renske M. and Pieber, Bartholomäus},
  issn         = {1520-5126},
  journal      = {Journal of the American Chemical Society},
  number       = {16},
  pages        = {13169–13179},
  publisher    = {American Chemical Society},
  title        = {{Evidence for a unifying NiI/NiIII mechanism in light-mediated cross-coupling catalysis}},
  doi          = {10.1021/jacs.4c16050},
  volume       = {147},
  year         = {2025},
}

@article{14409,
  abstract     = {We present a photon- and metal-free approach for the radical fluorination of aliphatic oxalate-activated alcohols. The method relies on the spontaneous generation of the N-(chloromethyl)triethylenediamine radical dication, a potent single electron oxidant, from Selectfluor and 4-(dimethylamino)pyridine. The protocol is easily scalable and provides the desired fluorinated products within only a few minutes reaction time.},
  author       = {Baunis, Haralds and Pieber, Bartholomäus},
  issn         = {1099-0690},
  journal      = {European Journal of Organic Chemistry},
  number       = {42},
  publisher    = {Wiley},
  title        = {{Formal radical deoxyfluorination of oxalate-activated alcohols triggered by the selectfluor-DMAP charge-transfer complex}},
  doi          = {10.1002/ejoc.202300769},
  volume       = {26},
  year         = {2023},
}