title: Iridium-catalyzed borylation of pyrene: irreversibility and the influence of ligand on selectivity.
abstract: The iridium-catalyzed borylation of pyrene, using 4,4'-dimethyl-2,2'-bipyridine as the ligand, in the presence of t-BuOK, gave a mixture of 2,4,7,9-tetrakis(Bpin)pyrene (c4) and its 2,4,7,10-isomer (m4) in a 2.2:1 ratio, and the selectivity of the Ir-catalyzed borylation of pyrene is kinetically determined and can be influenced to some extent by the nature of the ligand.
authors.affiliation: †Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.
authors.forename: Lei
authors.initials: L
authors.lastname: Ji
authors.affiliation: †Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.|‡School of Medicine, Pharmacy and Health, Durham University, University Boulevard, Stockton-on-Tees, TS17 6BH, United Kingdom.
authors.forename: Katharina
authors.initials: K
authors.lastname: Fucke
authors.affiliation: †Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.
authors.forename: Shubhankar Kumar
authors.initials: SK
authors.lastname: Bose
authors.affiliation: †Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.
authors.forename: Todd B
authors.initials: TB
authors.lastname: Marder
mesh_terms: D001896:Boron Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D002384:Catalysis; D007495:Iridium / Q000737:chemistry*; D007700:Kinetics; D008024:Ligands; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D011721:Pyrenes / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry*
chemical_list: C560551:4,4'-dimethyl-2,2'-bipyridine; D001896:Boron Compounds; D008024:Ligands; D009942:Organometallic Compounds; D011721:Pyrenes; D011725:Pyridines; D007495:Iridium; C030984:pyrene