Acid-catalysed conversion of saccharides into furanic aldehydes in the presence of three-dimensional mesoporous Al-TUD-1.
The one-pot acid-catalysed conversion of mono/di/polysaccharides (inulin, xylan, cellobiose, sucrose, glucose, fructose, xylose) into 2-furfuraldehyde (FUR) or 5-hydroxymethylfurfural (HMF) in the presence of aluminium-containing mesoporous TUD-1 (denoted as Al-TUD-1, Si/Al = 21), at 170 degrees C was investigated. Xylose gave 60% FUR yield after 6 h reaction; hexose-based mono/disaccharides gave less than 20% HMF yield; polysaccharides gave less than 20 wt % FUR or HMF yields after 6 h. For four consecutive 6 h batches of the xylose reaction in the presence of Al-TUD-1, the FUR yields achieved were similar, without significant changes in Si/Al ratio.
Lima
Sérgio
S
Department of Chemistry, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal. sergiolima@ua.pt
Antunes
Margarida M
MM
Fernandes
Auguste
A
Pillinger
Martyn
M
Ribeiro
Maria Filipa
MF
Valente
Anabela A
AA
D000143:Acids / Q000737:chemistry*; D000447:Aldehydes / Q000138:chemical synthesis* / Q000737:chemistry*; D002384:Catalysis; D005632:Fructose / Q000737:chemistry; D005662:Furaldehyde / Q000031:analogs & derivatives / Q000138:chemical synthesis* / Q000737:chemistry*; D008956:Models, Chemical; D011134:Polysaccharides / Q000737:chemistry; D013395:Sucrose / Q000737:chemistry; D014994:Xylose / Q000737:chemistry
D000143:Acids; D000447:Aldehydes; D011134:Polysaccharides; D005632:Fructose; D013395:Sucrose; C008046:5-hydroxymethylfurfural; D014994:Xylose; D005662:Furaldehyde