Now showing items 1-20 of 26

  • 2,4,5-Triphenyl-1,3,2-dioxaphospholan-2-one 

    Cordes, David B.; Hua, Guoxiong; Slawin, Alexandra M. Z.; Woollins, J. Derek (2011-07) - Journal article
    The dioxaphospholane ring in the title compound, C20H17O3P, adopts an envelope conformation about one of the ring carbons. The benzene rings of the compound do not form face-to-face pi-pi interactions, instead weak C-H ...
  • 2-(4-Fluorophenyl)-3-methyl-1H-indole 

    Cordes, David B.; Hua, Guoxiong; Slawin, Alexandra M. Z.; Woollins, J. Derek (2011-07) - Journal article
    The indole N-H hydrogen in the title compound, C15H12FN, does not display classical hydrogen bonding. Rather it forms an interaction with the pi system of an adjacent indole, resulting in weakly interacting chains along ...
  • 2-Phenyl-5-(p-tolyl)-1,3,4-oxadiazole 

    Cordes, David B.; Hua, Guoxiong; Slawin, Alexandra M. Z.; Woollins, J. Derek (2011-07) - Journal article
    The title compound, C15H12N2O, adopts the expected near-planar geometry, the phenyl and tolyl rings being inclined relative to the oxadiazole ring by 3.8 (3) and 8.3 (2)degrees, respectively. This allows adjacent molecules ...
  • Advanced model compounds for understanding acid catalyzed lignin depolymerization: identification of renewable aromatics and a lignin-derived solvent 

    Lahive, Ciaran; Deuss, Peter J.; Lancefield, Christopher Stuart; Sun, Zhuohua; Cordes, David B.; Young, Claire M.; Tran, Fanny; Slawin, Alexandra M. Z.; de Vries, Johannes G.; Kamer, Paul C. J.; Westwood, Nicholas J.; Barta, Katalin (2016-07-20) - Journal article
    The development of fundamentally new approaches for lignin depolymerization is challenged by the complexity of this aromatic biopolymer. While overly simplified model compounds often lack relevance to the chemistry of ...
  • An efficient route for the synthesis of phosphorus-selenium macro-heterocycles 

    Hua, Guoxiong; Slawin, Alexandra M. Z.; Randall, Rebecca A. M.; Cordes, David B.; Crawford, Luke; Buehl, Michael; Woollins, J. Derek (2013-04) - Journal article
    Four-membered ring [PhP(Se)(mu-Se)](2) (Woollins' reagent, WR) reacts with disodium alkenyl-diols followed by in situ ring-closure reaction with appropriate dibromoalkanes affording a series of unusual nine-to fifteen-membered ...
  • Exploring the self-assembly and energy transfer of dynamic supramolecular iridium-porphyrin systems 

    Rota Martir, Diego; Hedley, Gordon J.; Cordes, David B.; Slawin, Alexandra M. Z.; Escudero, Daniel; Jacquemin, Denis; Kosikova, Tamara; Philp, Douglas; Dawson, Daniel M.; Ashbrook, Sharon E.; Samuel, Ifor D. W.; Zysman-Colman, Eli (2016-11-22) - Journal article
    We present the first examples of dynamic supramolecular systems composed of cyclometalated Ir(III) complexes of the form of [Ir(C^N)2(N^N)]PF6 (where C^N is mesppy = 2-phenyl-4-mesitylpyridinato and dFmesppy = 2-(4,6-dif ...
  • Fluorinated liquid crystals: evaluation of selectively fluorinated facially polarised cyclohexyl motifs for liquid crystal applications 

    Al-Maharik, Nawaf; Kirsch, Peer; Slawin, Alexandra M. Z.; Cordes, David B.; O'Hagan, David (2016-11-14) - Journal article
    This paper explores the synthesis of a series of prototype negative dielectric liquid crystalline (LC) compounds which contain fluorinated cyclohexane motifs. The series are analogues and differ only in that they contain ...
  • Fluorinated musk fragrances : the CF2 group as a conformational bias influencing the odour of civetone and (R)-muscone 

    Callejo, Ricardo; Corr, Michael J.; Yang, Mingyan; Wang, Mingan; Cordes, David B.; Slawin, Alexandra M. Z.; O'Hagan, David (2016-06-06) - Journal article
    The difluoromethylene (CF2) group has a strong tendency to adopt corner over edge locations in aliphatic macrocycles. In this study, the CF2 group has been introduced into musk relevant macrocyclic ketones. Nine civetone ...
  • Generalization of the copper to late-transition-metal transmetallation to carbenes beyond N-heterocyclic carbenes 

    Bidal, Yannick D.; Santoro, Orlando; Melaimi, Mohand; Cordes, David B.; Slawin, Alexandra M. Z.; Bertrand, Guy; Cazin, Catherine S. J. (2016-06-27) - Journal article
    Carbene transition-metal complexes have become a prevalent family of catalysts enabling numerous organic transformations. Their facile synthetic access is a matter of great importance. To this end, the CuI-NHC transfer ...
  • Group-assisted purification (GAP) chemistry for the synthesis of Velcade via asymmetric borylation of N-phosphinylimines 

    Xie, Jian-bo; Luo, Jian; Winn, Timothy R.; Cordes, David B.; Li, Guigen (2014-03-31) - Journal item
    A new approach to the anticancer drug Velcade was developed by performing asymmetric borylation of an imine anchored with a chiral N-phosphinyl auxiliary. Throughout the 7-step synthesis, especially in the imine's synthesis ...
  • Homoleptic and heteroleptic bis-NHC Cu(I) complexes as carbene transfer reagents 

    Santoro, Orlando; Lazreg, Faïma; Cordes, David B.; Slawin, Alexandra Martha Zoya; Cazin, Catherine S. J. (2016-03-28) - Journal article
    Homo- and heteroleptic bis-NHC copper(I) complexes have been efficiently used as carbene transfer reagents to Au and Pd. The simple and straightforward procedure allows for the synthesis of well-known gold complexes as ...
  • Investigating unusual homonuclear intermolecular “through-space” J couplings in organochalcogen systems 

    Sanz Camacho, Paula; McKay, David; Dawson, Daniel M.; Kirst, Chistin; Yates, Jonathan R.; Green, Timothy F. G.; Cordes, David B.; Slawin, Alexandra M. Z.; Woollins, J. Derek; Ashbrook, Sharon E. (2016-11-07) - Journal article
    Although the electron-mediated spin-spin or J coupling is conventionally viewed as transmitted via covalent bonds, examples of J couplings between atoms that are not formally bonded but are in close proximity (termed ...
  • Isothiourea-mediated one-pot synthesis of trifluoromethyl substituted 2-pyrones 

    Yeh, Pei-Pei; Daniels, David S. B.; Cordes, David B.; Slawin, Alexandra M. Z.; Smith, Andrew D. (2014-02-07) - Journal article
    A one-pot isothiourea-mediated Michael addition/lactonization/thiol elimination cascade sequence for the formation of 4,6-disubstituted and 3,4,6-trisubstituted 2-pyrones from (phenylthio)acetic acids and α,β-unsaturated ...
  • Methanediide formation via hydrogen elimination in magnesium versus aluminium hydride complexes of a sterically demanding bis(iminophosphoranyl)methanediide 

    Sindlinger, Christian P.; Lawrence, Samuel R.; Cordes, David B.; Slawin, Alexandra M. Z.; Stasch, Andreas (2017-06) - Journal article
    Substituted bis(iminophosphoranyl)methanes are CH acidic compounds that can form complexes with formally dianionic central carbon centres. The reaction of H2C(Ph2P=NDip)2 (≡ H2L), Dip = 2,6-diisopropylphenyl, with one ...
  • Near-infrared fluorescence of silicon phthalocyanine carboxylate esters 

    Pal, Amlan K.; Varghese, Shinto; Cordes, David B.; Slawin, Alexandra M. Z.; Samuel, Ifor D. W.; Zysman-Colman, Eli (2017-09-25) - Journal article
    Seven silicon(IV) phthalocyanine carboxylate esters (SiPcs, 1–7 ) with non-, partially- and per-fluorinated aliphatic (linear or branched at the alpha-carbon) and aromatic ester groups have been synthesized, their solid-state ...
  • NMR Studies of Platinum bisphosphine complexes of phenylphosphonamidodiselenoate 

    Garland, Jaqueline; Cordes, David B.; Slawin, Alexandra M.Z.; Derek Woollins, J. (2015) - Journal article
    A series of platinum (II) bisphosphine complexes 1-20 [Pt(R’NH(Ph)PSe2)(PR3)2] (where R = Ph3, Ph2Me, Me2Ph, PMe3 and R’ = iPr, nBu, sBu, tBu, Benz) have been prepared by reaction of cis-[Pt(PR3)2Cl2)] and the alkyl ammonium ...
  • Phenyl(2,4,5-triphenylcyclopenta-1,4-dien-1-yl)methanone 

    Cordes, David B.; Hua, Guoxiong; Slawin, Alexandra M. Z.; Woollins, J. Derek (2011-07) - Journal article
    The title compound, C30H22O, does not form face-to-face pi-pi interactions despite the presence of four phenyl rings within the compound. Instead weak C-H center dot center dot center dot pi interactions occur between ...
  • Phosphorus-sulfur heterocycles incorporating an O-P(S)-O or O-P(S)-S-S-P(S)-O scaffold : one-pot synthesis and crystal structure study 

    Hua, Guoxiong; Davidson, Kate; Cordes, David B.; Du, Junyi; Slawin, Alexandra M. Z.; Woollins, J. Derek (2017-10-10) - Journal article
    A new one-pot preparative route was developed to synthesize novel organophosphorus sulfur heterocycles via the reaction of the four-membered ring thionation reagent [2,4-diferrocenyl 1,3,2,4-diathiadiphosphetane 2,4-disulfide ...
  • Platinum bisphosphine complexes of 1,8-naphthosultone 

    Diamond, Louise; Knight, Fergus Ross; Cordes, David B.; Fuller, Amy; Slawin, Alexandra Martha Zoya; Woollins, J Derek (2014-10-15) - Journal article
    A series of three platinum (II) bisphosphine complexes 1-3 [Pt(1-(SO2),8-(O)-nap)(PR3)2] (where R3 = Ph3, Ph2Me, Me2Ph) have been prepared by metathesis from cis-[Pt(PR3)2Cl2)] and the dilithium salt of 1,8-naphthosultone. ...
  • Solubilised bright blue-emitting iridium complexes for solution processed OLEDs 

    Henwood, Adam F.; Bansal, Ashu K.; Cordes, David B.; Slawin, Alexandra M. Z.; Samuel, Ifor D. W.; Zysman-Colman, Eli (2016-05-07) - Journal article
    Combining a sterically bulky, electron-deficient 2-(2,4-difluorophenyl)-4-(2,4,6- trimethylphenyl)pyridine (dFMesppy) cyclometalating C^N ligand with an electron rich, highly rigidified 1,1’-(α,α’-o-xylylene)-2,2’-biimidazole ...