Search Results - "Chase, Preston A"

Hydrogen and Amine Activation by a Frustrated Lewis Pair of a Bulky N‐Heterocyclic Carbene and B(C6F5)3 by Chase, Preston A., Stephan, Douglas W.

“…Size matters: The frustrated Lewis pair derived from B(C6F5)3 and the sterically encumbered N‐heterocyclic carbene N,N′‐tBu2C3H2N2 (1) cleaves dihydrogen…”
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Metal-Free Catalytic Hydrogenation by Chase, Preston A, Welch, Gregory C, Jurca, Titel, Stephan, Douglas W

“…Phosphonium borates of the form R2PH(C6F4)BH(C6F5)2 are shown to be metal‐free hydrogenation catalysts (see scheme) that effect reduction of sterically…”
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Hydrogen and Amine Activation by a Frustrated Lewis Pair of a Bulky N-Heterocyclic Carbene and B(C₆F₅) by Chase, Preston A, Stephan, Douglas W

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Organic Transformations on σ-Aryl Organometallic Complexes by Gagliardo, Marcella, Snelders, Dennis J.M, Chase, Preston A, Klein Gebbink, Robertus J.M, van Klink, Gerard P.M, van Koten, Gerard

“…This work reviews recent developments in the field of organic transformations on σ-aryl organometallic complexes. The general notion that M---C σ bonds are…”
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Solid-state and solution structures of hetero-aggregates formed between nBuLi and NCN pincer aryl lithium by Chase, Preston A, Lutz, Martin, Spek, Anthony L, Gossage, Robert A, van Koten, Gerard

“…The reaction of NCNLi pincers (NCN = [2,6-(R(2)NCH(2))(2)C(6)H(3)](-), R = Me (), Et ()) with various equivalents of nBuLi in non-polar solvent results in the…”
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Ring closing metathesis employing organometallic substrates and the templated synthesis of macrocycles by Chase, Preston A., Lutz, Martin, Spek, Anthony L., van Klink, Gerard P.M., van Koten, Gerard

“…Olefin metathesis has been employed in the selective generation of a number of pyridine containing macroheterocycles using multi-meric rigid pincer platinum…”
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Synthesis and Characterization of Verdazyl Radicals Bearing Pyridine or Pyrimidine Substituents:  A New Family of Chelating Spin-Bearing Ligands by Barr, Christa L, Chase, Preston A, Hicks, Robin G, Lemaire, Martin T, Stevens, Cecilia L

“…The syntheses and characterization of two new 1,5-dimethyl-6-oxoverdazyl radicals bearing 2-pyridine and 4,6-dimethyl-2-pyrimidine rings as substituents are…”
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General Approach for Template-Directed Synthesis of Macroheterocycles by Ring-Closing Metathesis (RCM) by Chuchuryukin, Alexey V., Chase, Preston A., Dijkstra, Harm P., Suijkerbuijk, Bart M. J. M., Mills, Allison M., Spek, Anthony L., van Klink, Gerard P. M., van Koten, Gerard

“…A general method to prepare macroheterocycles is reported in which a rigid symmetric platinated tris‐pincer tricationic complex (3) is used as a template. The…”
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Fluorinated 9-borafluorenes vs. conventional perfluoroaryl boranes — Comparative Lewis acidity by Chase, Preston A, Romero, Patricio E, Piers, Warren E, Parvez, Masood, Patrick, Brian O

“…Perfluorinated 9-phenyl-9-borafluorene, 1 , is an antiaromatic analog of the well-known tris(pentafluorophenyl)borane. Spectroscopic, structural, and…”
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Transmetalation of Aryl Units from Gold(I) to Cobalt(III):  A Clean Route to the Synthesis of Anion Cobaltoreceptors by Robitzer, Mike, Bouamaïed, Imenne, Sirlin, Claude, Chase, Preston A, van Koten, Gerard, Pfeffer, Michel

“…New organocobalt complexes were synthesized through the transmetalation reaction of lithium derivatives of several N,C,N pincer ligands,…”
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Improving the Industrial Feasibility of Metal-Free Hydrogenation Catalysts Using Chemical Scavengers by Thomson, Jordan W, Hatnean, Jillian A, Hastie, Jeff J, Pasternak, Andrew, Stephan, Douglas W, Chase, Preston A

“…A modified process using inexpensive poison scavengers has been developed that allows for more economical and practical scale-up of metal-free catalytic…”
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Bifunctional Perfluoroaryl Boranes:  Synthesis and Coordination Chemistry with Neutral Lewis Base Donors by Chase, Preston A, Henderson, Lee D, Piers, Warren E, Parvez, Masood, Clegg, William, Elsegood, Mark R. J

“…A practical synthetic route for the preparation of the known bifunctional perfluoroaryldiborane C6F4-1,2-[B(C6F5)2]2, 1, and the new diborane…”
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New Fluorinated 9-Borafluorene Lewis Acids by Chase, Preston A, Piers, Warren E, Patrick, Brian O

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Metal-Free Catalytic Hydrogenation by Chase, Preston A, Welch, Gregory C, Jurca, Titel, Stephan, Douglas W

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Insertion of Acrylonitrile into Palladium Methyl Bonds in Neutral and Anionic Pd(II) Complexes by Groux, Laurent F, Weiss, Thomas, Reddy, Dastigiri N, Chase, Preston A, Piers, Warren E, Ziegler, Tom, Parvez, Masood, Benet-Buchholz, Jordi

“…The reactions of a series of Pd(II) methyl compounds of general formula LPd(NCCH3)CH3, where L is a bulky phenoxydiazene or phenoxyaldimine ligand with the…”
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Formation of Chelated Counteranions Using Lewis Acidic Diboranes:  Relevance to Isobutene Polymerization by Chai, Jianfang, Lewis, Stewart P, Collins, Scott, Sciarone, Timo J. J, Henderson, Lee D, Chase, Preston A, Irvine, Geoffrey J, Piers, Warren E, Elsegood, Mark R. J, Clegg, William

“…The reactions of chelating diboranes with PhCMe2Cl and related initiators were studied by variable-temperature NMR spectroscopy. Although thermally stable…”
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Novel P-Stereogenic PCP Pincer-Aryl Ruthenium(II) Complexes and Their Use in the Asymmetric Hydrogen Transfer Reaction of Acetophenone by Medici, Serenella, Gagliardo, Marcella, Williams, Scott B., Chase, Preston A., Gladiali, Serafino, Lutz, Martin, Spek, Anthony L., van Klink, Gerard P. M., van Koten, Gerard

“…Achiral P‐donor pincer‐aryl ruthenium complexes ([RuCl(PCP)(PPh3)]) 4c,d were synthesized via transcyclometalation reactions by mixing equivalent amounts of…”
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A Ruthenium(II) Complex Stabilized by a Highly Fluorinated PCP Pincer Ligand by Gagliardo, Marcella, Chase, Preston A., Lutz, Martin, Spek, Anthony L., Hartl, Frantisek, Havenith, Remco W. A., van Klink, Gerard P. M., van Koten, Gerard

“…A novel Ru(II) complex containing an electron-poor, highly fluorinated PCPArF pincer ligand has been synthesized in good yield via a transcyclometalation…”
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Hydroxy- and Mercaptopyridine Pincer Platinum and Palladium Complexes Generated by Silver-Free Halide Abstraction by Chuchuryukin, Alexey V, Chase, Preston A, Mills, Allison M, Lutz, Martin, Spek, Anthony L, van Klink, Gerard P. M, van Koten, Gerard

“…A silver-free route has been employed for the synthesis of a number of Pd and Pt complexes supported by an NCN “pincer” ligand (NCN = [2,6-(Me2NCH2)2C6H3]-)…”
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Hydrogen and Amine Activation by a Frustrated Lewis Pair of a Bulky N-Heterocyclic Carbene and B(C6F5)3 by Chase, Preston A., Stephan, Douglas W.

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