Mechanistic aspects of hydrodeoxygenation of p-methylguaiacol over Rh/silica and Pt/silica

Research output: Contribution to journalArticlepeer-review


  • Florent P. Bouxin
  • Xingguang Zhang
  • Adam F. Lee
  • Karen Wilson
  • S. David Jackson

Colleges, School and Institutes

External organisations

  • University of Glasgow
  • RMIT University


The mechanism of p-methylguaiacol (PMG) hydrodeoxygenation (HDO) has been examined over two Rh/silica catalysts and a Pt/silica catalyst at 300 °C and 4 barg hydrogen. Sequential conversion of PMG to 4-methylcatechol is followed by m- and p-cresol formation and finally toluene production, although direct conversion of PMG to p-cresol is favored over a commercial Rh/silica catalyst. Dehydroxylation and hydrogenation are shown to occur over metal functions, while demethylation and demethoxylation are favored over the fumed silica support. A mechanistic pathway for HDO of PMG is proposed.


Original languageEnglish
JournalOrganic Process Research and Development
Early online date29 Aug 2018
Publication statusE-pub ahead of print - 29 Aug 2018


  • hydrodeoxygenation, mechanism, p-methylguaiacol, platinum, rhodium