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

Florent P. Bouxin, Xingguang Zhang, Iain N. Kings, Adam F. Lee, Mark J. H. Simmons, Karen Wilson, S. David Jackson

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)
82 Downloads (Pure)

Abstract

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
DOIs
Publication statusE-pub ahead of print - 29 Aug 2018

Keywords

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

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