Reduction of O/C ratio of lignin derived monomers via hydrodeoxygenation (HDO) pathway is conventionally furnished using molecular hydrogen under severe conditions. Nonetheless, due to a prerequisite to accomplish HDO through commercially attractive methodology we report, HDO reactions of various phenolic compounds via catalytic transfer hydrogenation (CTH) pathway using very low loading of Ru (0.5 wt%) on neutral and acidic Al₂O₃ under nitrogen atmosphere. With guaiacol as a substrate, 74% cyclohexanol yield at 225 °C in the presence of IPA is realized. Bi-functionality of metal state, acidity of support and nature of alcohol are perceived to be responsible for the variation in activity.

常规地，在苛刻的条件下使用分子氢，通过加氢脱氧（HDO）途径降低木质素衍生单体的O / C比。尽管如此，由于通过商业上有吸引力的方法完成HDO的前提条件，我们报告说，各种酚类化合物的HDO反应是通过催化转移氢化（CTH）途径，在极低的Ru（0.5 wt％）负载下在中性和酸性Al ₂ O _3上进行的。氮气气氛。以愈创木酚为底物，在IPA存在下，在225°C时，环己醇的产率为74％。金属态的双官能度，载体的酸度和醇的性质被认为是活性变化的原因。