초록 |
5-Hydroxymethyl-2-furaldehyde (HMF) was hydrogenated to 2,5-bis(hydroxylmethyl)furan (BHMF) in various n-alcohol solvents with more than 98 % yield using Ru(OH)x/ZrO2 catalyst. The BHMF in the n-alcohol solvents was subsequently transformed into 2,5-bis(alkoxymethyl)furans (BAMFs, 4 samples) with reasonable yield and the highest ones using Amberlyst-15. A two-step sequential reaction (hydrogenation followed by etherification) process from HMF to produce BAMF was developed. Ru(OH)x/ZrO2 catalyst revealed excellent performance for the hydrogenation reaction of HMF to BHMF in various n-alcohol solvents in more than 98 % yields. Due to the active sites of Ru-OH and the metal-support interaction between Ru and ZrO2, Ru(OH)x/ZrO2 gave these outstanding results. The resulting solution of BHMF in various n-alcohols (methanol, ethanol, 1-propanol and 1-butanol) was then etherified by using Amberlyst-15. From simple two-step sequential reactions, HMF was transformed to BAMF in more than 70 % yields, except for BMMF, which was obtained in 50 % yield. |