Now showing items 1-9 of 9

  • 1,5,6-Triphenyl-8-oxa-7-selena-6-phosphabicyclo[3.2.1]octane-6-selone 

    Hua, Guoxiong; Li, Yang; Slawin, Alexandra Martha Zoya; Woollins, J Derek (2008-01) - Journal article
    The structure of the title compound, C23H21OPSe2, consists of fused puckered five- and six-membered rings, PSeC2O and C5O, respectively, with a C2O bridgehead. The C5O ring adopts a chair conformation, whilst the C2PSeO ...
  • 2,2 '-o-Phenylenediacetonitrile 

    Li, Yang; Hua, Guoxiong; Slawin, Alexandra M. Z.; Woollins, J. Derek (2009-11) - Journal article
    In the title compound, NCCH2C6H4CH2CN, the bond lengths and angles are within normal ranges. The benzene ring makes dihedral angles of 4.94 (8) and 77.04 (8)degrees with the C-C-C-N mean planes. Weak non-conventional C-H ...
  • 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 ...
  • From phenylalkylcyanamides to heterocyclic selenazadiphospholaminediselenides and carbamidoyl(phenyl) phosphinodiselenoic acids 

    Hua, Guoxiong; Zhang, Qingzhi; Li, Yang; Slawin, Alexandra Martha Zoya; Woollins, J Derek (2008-11) - Journal article
    The reaction of 2,4-bis(phenyl)-1,3-diselenadiphosphetane-2,4- diselenide (Woollins' Reagent, WR) with phenylalkyl-cyanamides (RR'NC N, R = PhCH2CH2, R' = CH3 and R = PhCH2CH2CH2, R' = H) in refluxing toluene led to novel ...
  • Novel five- to ten-membered organoselenium heterocycles from the selenation of aromatic diols 

    Hua, Guoxiong; Fuller, Amy; Slawin, Alexandra M. Z.; Woollins, J Derek (2010-05) - Journal article
    Reaction of Woollins' reagent ― WR , 2,4-bis(phenyl)-1,3-diselenadiphosphetane 2,4-diselenide [{PhP(Se)(μ-Se)}2] ― with aromatic diols in refluxing toluene afforded a series of novel five- to ten-membered phosphorus-selenium ...
  • Octaselenocyclododecane 

    Hua, Guoxiong; Griffin, John M.; Ashbrook, Sharon E.; Slawin, Alexandra M. Z.; Woollins, J. Derek (2011-04-26) - Journal article
  • Selenocarbonyl synthesis using Woollins Reagent 

    Bhattacharyya, Pravat; Woollins, John Derek (2001-08-20) - Journal article
    [PhP(Se)(mu -Se)](2) selenates secondary and tertiary amides to the corresponding selenoamides in 30-70% yields at 130 degreesC in toluene and indolizine-3-aldehydes to selenoaldehydes in 40-59% yield at 25 degreesC. (C) ...
  • Synthesis of novel 2,5-diarylselenophenes from selenation of 1,4-diarylbutane-1,4-diones or methanol/arylacetylenes 

    Hua, Guoxiong; Henry, John B.; Li, Yang; Mount, Andrew R.; Slawin, Alexandra M. Z.; Woollins, J. Derek (2010-04-07) - Journal article
    Reaction of 2,4-bis(phenyl)-1,3-diselenadiphosphetane-2,4-diselenide [PhP(Se)(mu-Se)](2) (Woollins' reagent, WR) with one equivalent of 1,4-diarylbutane-1,4-diones 1a-g in refluxing toluene affords the corresponding ...
  • The X-ray crystal structures of primary aryl substituted selenoamides 

    Li, Yang; Hua, Guo-Xiong; Slawin, Alexandra M. Z.; Woollins, J. Derek (2009-02-23) - Journal article
    The X-ray structures of 12 primary selenoamides are reported. Metric parameters are provided, together with an illustration of the range of hydrogen bonding motifs.