@article{75bffc017d4c4745af40a3a5cd525576,
title = "Intraligand Charge Transfer Enables Visible-Light-Mediated Nickel-Catalyzed Cross-Coupling Reactions",
abstract = "We demonstrate that several visible-light-mediated carbon−heteroatom cross-coupling reactions can be carried out using a photoactive NiII precatalyst that forms in situ from a nickel salt and a bipyridine ligand decorated with two carbazole groups (Ni(Czbpy)Cl2). The activation of this precatalyst towards cross-coupling reactions follows a hitherto undisclosed mechanism that is different from previously reported light-responsive nickel complexes that undergo metal-to-ligand charge transfer. Theoretical and spectroscopic investigations revealed that irradiation of Ni(Czbpy)Cl2 with visible light causes an initial intraligand charge transfer event that triggers productive catalysis. Ligand polymerization affords a porous, recyclable organic polymer for heterogeneous nickel catalysis of cross-coupling reactions. The heterogeneous catalyst shows stable performance in a packed-bed flow reactor during a week of continuous operation.",
keywords = "Flow Chemistry, Heterogeneous Catalysis, Homogeneous Catalysis, Nickel Catalysis, Photocatalysis",
author = "Cristian Cavedon and Sebastian Gisbertz and Susanne Reischauer and Sarah Vogl and Eric Sperlich and Burke, {John H.} and Wallick, {Rachel F.} and Stefanie Schrottke and Hsu, {Wei Hsin} and Lucia Anghileri and Yannik Pfeifer and Noah Richter and Christian Teutloff and Henrike M{\"u}ller-Werkmeister and Dario Cambi{\'e} and Seeberger, {Peter H.} and Josh Vura-Weis and {van der Veen}, {Renske M.} and Arne Thomas and Bartholom{\"a}us Pieber",
note = "Funding Information: C.C., S.G., S.R., W.‐H. H., N.R., L.A., D.C. P.H.S, and B.P. gratefully acknowledge the Max‐Planck Society for generous financial support. S.G. and B.P. thank the International Max Planck Research School on Multiscale Bio‐Systems for funding. B.P. acknowledges financial support by a Liebig Fellowship of the German Chemical Industry Fund (Fonds der Chemischen Industrie, FCI). H.M.‐W., A.T,. and B.P. thank the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy—EXC 2008‐390540038—UniSysCat. S.V. and A.T. thank the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) for financial support (TH 1463/15‐1). L.A. and B.P. thank the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) for financial support (BP 1635/2‐19). R.M.V. acknowledges funding from the David and Lucile Packard Foundation. This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE‐SC0018904 to J.V.W. J.H.B. was supported by the Robert C. and Carolyn J. Springborn Endowment for Student Support Program and the National Science Foundation Graduate Research Fellowship Program. We thank Prof. R. Bittl and Dr. John J. Molloy for scientific support and fruitful discussions. Open Access funding enabled and organized by Projekt DEAL. Funding Information: C.C., S.G., S.R., W.-H. H., N.R., L.A., D.C. P.H.S, and B.P. gratefully acknowledge the Max-Planck Society for generous financial support. S.G. and B.P. thank the International Max Planck Research School on Multiscale Bio-Systems for funding. B.P. acknowledges financial support by a Liebig Fellowship of the German Chemical Industry Fund (Fonds der Chemischen Industrie, FCI). H.M.-W., A.T,. and B.P. thank the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy—EXC 2008-390540038—UniSysCat. S.V. and A.T. thank the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) for financial support (TH 1463/15-1). L.A. and B.P. thank the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) for financial support (BP 1635/2-19). R.M.V. acknowledges funding from the David and Lucile Packard Foundation. This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0018904 to J.V.W. J.H.B. was supported by the Robert C. and Carolyn J. Springborn Endowment for Student Support Program and the National Science Foundation Graduate Research Fellowship Program. We thank Prof. R. Bittl and Dr. John J. Molloy for scientific support and fruitful discussions. Open Access funding enabled and organized by Projekt DEAL. Publisher Copyright: {\textcopyright} 2022 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.",
year = "2022",
month = nov,
day = "14",
doi = "10.1002/anie.202211433",
language = "English (US)",
volume = "61",
journal = "Angewandte Chemie - International Edition",
issn = "1433-7851",
publisher = "John Wiley & Sons, Ltd.",
number = "46",
}