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Research at St Andrews

John Christopher Walton

Person

  1. 2017
  2. Published

    Dealkanative main group couplings across the peri-gap

    Taylor, L. J., Buehl, M., Chalmers, B. A., Ray, M. J., Wawrzyniak, P., Walton, J. C., Cordes, D. B., Slawin, A. M. Z., Woollins, J. D. & Kilian, P. 27 Dec 2017 In : Journal of the American Chemical Society. 139, 51, p. 18545-18551

    Research output: Research - peer-reviewArticle

  3. Published

    Generation and structure of unique boriranyl radicals

    Walton, J. C., McFadden, T. R. & Curran, D. P. 22 Nov 2017 In : Journal of the American Chemical Society. 139, 46, p. 16514-16517

    Research output: Research - peer-reviewArticle

  4. E-pub ahead of print

    N- to C-sulfonyl photoisomerisation of dihydropyridinones: a synthetic and mechanistic study

    Yeh, P-P., Taylor, J. E., Stark, D. G., Daniels, D. S. B., Fallan, C., Walton, J. C. & Smith, A. D. 16 Oct 2017 In : Organic & Biomolecular Chemistry. In press

    Research output: Research - peer-reviewArticle

  5. Published
  6. 2016
  7. Published

    A valuable upgrade to the portfolio of cycloaddition reactions

    Walton, J. C. 9 Jun 2016 In : Angewandte Chemie International Edition. 55, 25, p. 7034-7036 3 p.

    Research output: Research - peer-reviewArticle

  8. Published

    Synthetic strategies for 5- and 6-membered ring azaheterocycles facilitated by iminyl radicals

    Walton, J. C. 18 May 2016 In : Molecules. 21, 5

    Research output: Research - peer-reviewReview article

  9. Published

    Identification of products from canthaxanthin oxidation

    Mordi, R. C. & Walton, J. C. 15 Apr 2016 In : Food Chemistry. 197, Part A, p. 836-840 5 p.

    Research output: Research - peer-reviewArticle

  10. Published

    Functionalised oximes: emergent precursors for carbon-, nitrogen- and oxygen-centred radicals

    Walton, J. C. 7 Jan 2016 In : Molecules. 21, 1, 23 p., 63

    Research output: Research - peer-reviewReview article

  11. 2015
  12. Published

    Bicarbonate and alkyl carbonate radicals: structural integrity and reactions with lipid components

    Buehl, M., DaBell, P., Manley, D., McCaughan, R. & Walton, J. C. 30 Dec 2015 In : Journal of the American Chemical Society. 137, 51, p. 16153–16162

    Research output: Research - peer-reviewArticle

  13. Published

    Preparative semiconductor photoredox catalysis: an emerging theme in organic synthesis

    Manley, D. W. & Walton, J. C. 9 Sep 2015 In : Beilstein Journal of Organic Chemistry. 11, p. 1570-1582 13 p.

    Research output: Research - peer-reviewReview article

  14. Published

    The games radicals play: special issue on free radicals and radical ions

    Walton, J. C. & Williams, F. Feb 2015 In : Molecules. 20, 2, p. 2831-2834 4 p.

    Research output: Research - peer-reviewEditorial

  15. 2014
  16. Published
  17. Published

    A Clean and Selective Radical Homocoupling Employing Carboxylic Acids with Titania Photoredox Catalysis

    Manley, D. W. & Walton, J. C. 17 Oct 2014 In : Organic Letters. 16, 20, p. 5394-5397 4 p.

    Research output: Research - peer-reviewArticle

  18. Published

    Hydrogenations without hydrogen: titania photocatalyzed reductions of maleimides and aldehydes

    Manley, D. W., Buzzetti, L., MacKessack-Leitch, A. & Walton, J. C. 24 Sep 2014 In : Molecules. 19, 9, p. 15324-15338 15 p.

    Research output: Research - peer-reviewArticle

  19. Published
  20. Published
  21. Published

    Titania-promoted carboxylic acid alkylations of alkenes and cascade addition-cyclizations

    Manley, D. W., McBurney, R. T., Walton, J. C., Mills, A., O'Rourke, C. & Miller, P. 7 Feb 2014 In : Journal of Organic Chemistry. 79, 3, p. 1386-1398 13 p.

    Research output: Research - peer-reviewArticle

  22. 2013
  23. Published

    Interplay of ortho- with spiro-cyclisation during iminyl radical closures onto arenes and heteroarenes

    Walton, J. C. & McBurney, R. T. Jun 2013 In : Beilstein Journal of Organic Chemistry. 9, p. 1083-1092 10 p.

    Research output: Research - peer-reviewArticle

  24. Published

    Dissociation or cyclization: options for a triad of radicals released from oxime carbamates

    McBurney, R. T. & Walton, J. C. 13 May 2013 In : Journal of the American Chemical Society. 135, 19, p. 7349–7354 6 p.

    Research output: Research - peer-reviewArticle

  25. Published

    Rapid and Selective Spiro-Cyclisations of O-Centred Radicals onto Aromatic Acceptors

    Walton, J. C., McBurney, R. T., Eisenschmidt, A. & Slawin, A. M. Z. Mar 2013 In : Chemical Science. 4, p. 2028-2035 8 p.

    Research output: Research - peer-reviewArticle

  26. 2012
  27. Published

    An all-purpose preparation of oxime carbonates and resultant insights into the chemistry of alkoxycarbonyloxyl radicals

    McBurney, R. T., Harper, A. D., Slawin, A. M. Z. & Walton, J. C. Dec 2012 In : Chemical Science. 3, 12, p. 3436-3444 9 p.

    Research output: Research - peer-reviewArticle

  28. Published

    Analysis of Radicals by EPR

    Walton, J. C. 2012 Encyclopedia of Radicals in Chemistry, Biology and Materials. Chatgilialoglu, C. & Studer, A. (eds.). Chichester: John Wiley and Sons, p. 147-174

    Research output: ResearchEntry for encyclopedia/dictionary

  29. Published

    Microwave assisted radical organic syntheses

    McBurney, R. T., Portela Cubillo, F. & Walton, J. C. 2012 In : RSC Advances. 2, 4, p. 1264-1274

    Research output: Research - peer-reviewArticle

  30. Published

    Unconventional Titania Photocatalysis: Direct Deployment of Carboxylic Acids in Alkylations and Annulations

    Manley, D., McBurney, R. T., Miller, P., Howe, R. F., Rhydderch, S. & Walton, J. C. 2012 In : Journal of the American Chemical Society. 134, 33, p. 13580-13583

    Research output: Research - peer-reviewArticle

  31. 2011
  32. Published

    Electron Paramagnetic Resonance and Computational Studies of Radicals Derived from Boron-Substituted N-Heterocyclic Carbene Boranes

    Walton, J. C., Brahmi, M., Montot, J., Fensterbank, I., Malacria, M., Curran, D. P. & Lacote, E. 2011 In : Journal of the American Chemical Society. 133, 26, p. 10312-10321

    Research output: Research - peer-reviewArticle

  33. Published

    UV promoted phenanthridine syntheses from oxime carbonate derived iminyl radicals

    McBurney, R. T., Slawin, A. M. Z., Smart, L. A., Yu, Y. & Walton, J. C. 2011 In : Chemical Communications. 47, 28, p. 7974-7976 3 p.

    Research output: Research - peer-reviewArticle

  34. 2010
  35. Published

    EPR and pulsed ENDOR study of intermediates from reactions of aromatic azides with group 13 metal trichlorides

    Walton, J. C., Bencivenni, G., Cesari, R., Nanni, D. & El Mkami, H. Sep 2010 In : Beilstein Journal of Organic Chemistry. 6, p. 713-725

    Research output: Research - peer-reviewArticle

  36. Published

    EPR Studies of the Generation, Structure, and Reactivity of N-Heterocyclic Carbene Borane Radicals

    Walton, J. C., Brahmi, M. M., Fensterbank, L., Lacote, E., Malacria, M., Chu, Q., Ueng, S-H., Solovyev, A. & Curran, D. P. 2010 In : Journal of the American Chemical Society. 132, 7, p. 2350-2358

    Research output: Research - peer-reviewArticle

  37. Published

    EPR and ENDOR spectroscopic study of the reactions of aromatic azides with gallium trichloride.

    Walton, J. C., Bencivenni, G., Cesari, R., Nanni, D. & El Mkami, H. 2010 In : Organic & Biomolecular Chemistry. p. 5097-5104

    Research output: Research - peer-reviewArticle

  38. 2009
  39. Published

    5-Exo-Cyclizations of Pentenyliminyl Radicals: Inversion of the gem-Dimethyl Effect.

    Walton, J. C., Portela Cubillo, F., Alonso-Ruiz, R. & Sampedro, D. 2009 In : Journal of Physical Chemistry A. 113, p. 10005-10012

    Research output: Research - peer-reviewArticle

  40. Published
  41. Published

    Microwave-promoted Syntheses of Quinazolines and Dihydroquinazolines from 2-Aminoarylalkanone O-Phenyl Oximes.

    Walton, J. C., Portela Cubillo, F. & Scott, J. S. 2009 In : Journal of Organic Chemistry. 74, p. 4934-4942

    Research output: Research - peer-reviewArticle

  42. Published

    N-Heterocyclic Carbene Boryl Radicals: A New Class of Boron-Centered Radical

    Ueng, S. E., Solovyev, A., Yuan, X., Geib, S. J., Fensterbank, L., Lacote, E., Malacria, M., Newcomb, M., Walton, J. C. & Curran, D. P. 2009 In : Journal of the American Chemical Society. 131, 31, p. 11256-11262

    Research output: Research - peer-reviewArticle

  43. 2008
  44. Published

    Dioxime oxalates; new iminyl radical precursors for syntheses of N-heterocycles.

    Portela Cubillo, F., Lymer, J., Scanlan, E. M., Scott, J. S. & Walton, J. C. Dec 2008 In : Tetrahedron. 64, 52, p. 11908-11916

    Research output: Research - peer-reviewArticle

  45. Published

    Thermal Rearrangement of Indolyl Oxime Esters to Pyridoindoles

    Portela Cubillo, F., Surgenor, B. A., Aitken, R. A. & Walton, J. C. 17 Oct 2008 In : Journal of Organic Chemistry. 73, 20, p. 8124-8127 4 p.

    Research output: Research - peer-reviewArticle

  46. Published

    Microwave-assisted syntheses of n-heterocycles using alkenone-, alkynone- and aryl-carbonyl O-phenyl oximes: Formal synthesis of neocryptolepine

    Portela-Cubillo, F., Scoto, J. S. & Walton, J. C. 18 Jul 2008 In : Journal of Organic Chemistry. 73, p. 5558-5565 8 p.

    Research output: Research - peer-reviewArticle

  47. Published

    2-(aminoaryl)alkanone O-phenyl oximes: versatile reagents for syntheses of quinazolines

    Portela-Cubillo, F., Scott, J. S. & Walton, J. C. 2008 In : Chemical Communications. 25, p. 2935-2937 3 p.

    Research output: Research - peer-reviewArticle

  48. Published

    From dioxime oxalates to dihydropyrroles and phenanthridines via iminyl radicals

    Portela-Cubillo, F., Scanlan, E. M., Scott, J. S. & Walton, J. C. 2008 In : Chemical Communications. 35, p. 4189-4191 3 p.

    Research output: Research - peer-reviewArticle

  49. 2007
  50. Published

    Characterization of equatorial and axial six-membered-ring peroxyl radicals

    DiLabio, G. A., Ingold, K. U. & Walton, J. C. 12 Oct 2007 In : Journal of Organic Chemistry. 72, 21, p. 8095-8098 4 p.

    Research output: Research - peer-reviewArticle

  51. Published
  52. Published
  53. Published

    Microwave-assisted preparations of dihydropyrroles from alkenone O-phenyl oximes

    Portela-Cubillo, F., Scott, J. S. & Walton, J. C. 2007 In : Chemical Communications. 39, p. 4041-4043 3 p.

    Research output: Research - peer-reviewArticle

  54. 2006
  55. Published

    Radical 4-exo-cyclizations onto O-alkyloxime acceptors: towards the synthesis of penicilliin-containing antibiotics

    Walton, J. C. & Scanlan, E. M. 2006 In : Helvetica Chimica Acta. 89, p. 2133-2143 11 p.

    Research output: Research - peer-reviewArticle

  56. Published

    Unusual radical cyclisations

    Walton, J. C. 2006 Radicals in Synthesis II. Gansäuer, A. (ed.). Springer, p. 163-200 (Topics in Current Chemistry; vol. 264)

    Research output: ResearchChapter

  57. 2005
  58. Published

    Evolution of Functional Cyclohexadiene-Based Synthetic Reagents: The Importance of Becoming Aromatic

    Walton, J. C. & Studer, A. Oct 2005 In : Accounts of Chemical Research. 38, 10, p. 794-802 9 p.

    Research output: Research - peer-reviewArticle

  59. Published

    Kinetic and theoretical study of 4-exo ring closures of carbamoyl radicals onto C=C and C=N bonds

    Walton, J. C., DiLabio, G. A. & Scanlan, E. S. 6 Jan 2005 In : Organic Letters. 7, 1, p. 155-158 4 p.

    Research output: Research - peer-reviewArticle

  60. Published

    Radical-carbanion cyclo-coupling in armed aromatics: overriding steric hindrance to ring closure

    Walton, J. C. & Roydhouse, M. D. 2005 In : Chemical Communications. p. 4453-4455 3 p.

    Research output: Research - peer-reviewArticle

  61. 2004
  62. Published

    Axial and equatorial cyclohexylacyl and tetrahydropyranyl-2-acyl radicals. An experimental and theoretical study

    DiLabio, G. A., Ingold, K. U., Roydhouse, M. D. & Walton, J. C. 11 Nov 2004 In : Organic Letters. 6, p. 4319-4322 4 p.

    Research output: Research - peer-reviewArticle

  63. Published

    Approach to 3-aminoindolin-2-ones via oxime ether functionalized carbamoylcyclohexadienes

    Bella, A. F., Slawin, A. M. Z. & Walton, J. C. 3 Sep 2004 In : Journal of Organic Chemistry. 69, p. 5926-5933 8 p.

    Research output: Research - peer-reviewArticle

  64. Published

    Bond dissociation enthalpies in Oximes: order restored

    Pratt, D. A., Blake, J. A., Mulder, P., Walton, J. C., Korth, H-G. & Ingold, K. U. 1 Sep 2004 In : Journal of the American Chemical Society. 126., p. 10667-10675 9 p.

    Research output: Research - peer-reviewArticle

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