Now showing items 1-9 of 9

    • 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 ...
    • Fractionation and DOSY NMR as analytical tools : from model polymers to a technical lignin 

      Montgomery, James; Lancefield, Christopher Stuart; Miles-Barrett, Daniel; Ackermann, Katrin; Bode, Bela Ernest; Westwood, Nicholas James; Lebl, Tomas (2017-11-30) - Journal article
      One key challenge hindering the valorization of lignin is its structural complexity. Artificial lignin-like materials provide a stepping stone between the simplicity of model compounds and the complexity of lignin. Here, ...
    • Grafting of technical lignins through regioselective triazole formation on β-O-4 linkages 

      Panovic, Isabella; Montgomery, James R.D.; Lancefield, Christopher Stuart; Puri, Dhivya; Lebl, Tomas; Westwood, Nicholas J. (2017-09-13) - Journal article
      A new method has been developed to enable the modification of the organosolv technical lignin. Using a walnut shell butanol alkoxasolv lignin as a source of high β-O-4 content material, the β-O-4 γ-position has been ...
    • Metal triflates for the production of aromatics from lignin 

      Deuss, Peter Joseph; Lahive, Ciaran; Lancefield, Christopher Stuart; Westwood, Nicholas James; Kamer, Paul C J; Barta, Katalin; de Vries, Johannes G. (2016-10-20) - Journal article
      The depolymerization of lignin into valuable aromatic chemicals is one of the key goals towards establishing economically viable biorefineries. In this contribution we present a simple approach for converting lignin to ...
    • The synthesis and analysis of advanced lignin model polymers 

      Lancefield, Christopher Stuart; Westwood, Nicholas James (2015-11-01) - Journal article
      If the lignin-first biorefinery concept becomes reality, high quality lignins close in structure to native lignins will become available in large quantities. One potential way to utilise this renewable material is through ...
    • The synthesis and analysis of lignin-bound Hibbert ketone structures in technical lignins 

      Miles-Barrett, Daniel; Neal, Andrew; Hand, Calum; Montgomery, James; Panovic, Isabella; Ojo, Oluwarotimi Stephen; Lancefield, Christopher Stuart; Cordes, David B.; Slawin, Alexandra M. Z.; Lebl, Tomas; Westwood, Nicholas J. (2016-11-14) - Journal article
      Understanding the structure of technical lignins resulting from acid-catalysed treatment of lignocellulosic biomass is important for their future applications. Here we report an investigation into the fate of lignin under ...
    • Total synthesis of dehaloperophoramidine using a highly diastereoselective Hosomi-Sakurai reaction 

      Wilkie, Ross Philip; Neal, Andrew; Johnston, Craig Andrew; Voûte, Nicholas; Lancefield, Christopher Stuart; Stell, Matthew; Medda, Federico; Makiyi, Edward Frank; Turner, Emma; Ojo, Oluwarotimi Stephen; Slawin, Alexandra Martha Zoya; Lebl, Tomas; Mullen, Peter; Harrison, David James; Ireland, Chris M; Westwood, Nicholas James (2016-09-14) - Journal article
      The synthesis of dehaloperophoramidine, a non-halogenated derivative of the marine natural product perophoramidine, is reported. The key steps included a [3,3]-Claisen rearrangement and an epoxide opening/allylsilylation ...
    • The use of residual dipolar coupling for conformational analysis of structurally related natural products 

      Lancefield, Christopher Stuart; Slawin, Alexandra Martha Zoya; Westwood, Nicholas James; Lebl, Tomas (2015-06) - Journal article
      Determining the conformational preferences of molecules in solution remains a considerable challenge. Recently, the use of residual dipolar coupling (RDC) analysis has emerged as a key method to address this. Whilst to ...
    • Using molecular oxygen in synthesis : applications in lignin valorisation and natural product synthesis 

      Lancefield, Christopher Stuart (University of St Andrews, 2015-06-24) - Thesis
      The first part of this thesis describes my research towards the valorisation of lignin. Due to environmental and political pressures, there has been a drive to start the transition from a fossil fuel based economy to a ...