Conversion of chitin derived N-acetyl-d-glucosamine (NAG) into polyols over transition metal catalysts and hydrogen in water

Bobbink, Felix D. and Zhang, Jiaguang and Pierson, Yann and Chen, Xi and Yan, Ning (2015) Conversion of chitin derived N-acetyl-d-glucosamine (NAG) into polyols over transition metal catalysts and hydrogen in water. Green Chemistry, 17 (2). pp. 1024-1031. ISSN 1463-9262

Full content URL: http://doi.org/10.1039/C4GC01631A

Documents
C4GC01631A.pdf

Request a copy
[img] PDF
C4GC01631A.pdf - Whole Document
Restricted to Repository staff only

914kB
Item Type:Article
Item Status:Live Archive

Abstract

N-Acetyl-D-glucosamine (NAG), the monomer of the world's second most abundant biopolymer chitin, has been for the first time converted to its corresponding amide/amino substituted sugar alcohols, smaller C2–4 polyols and N-acetylmonoethanolamine (NMEA), over noble metal catalysts in the presence of hydrogen in water. Four commercialized catalysts were investigated, and Ru/C exhibited the best performance—achieving 8.7% NMEA, 6.1% C4 polyols, and 71.9% C6 polyols (N-containing) under 180 °C, 40 bar H2, 1 h with 1 mol% loading. Kinetic studies were conducted, which revealed four major reaction pathways that lead to various products. In particular, retro-aldol reaction-hydrogenation was confirmed to be the pathway forming NMEA. The effects of additives (NaOH and WO3) on the reaction were also tested.

Keywords:Chitin
Subjects:F Physical Sciences > F100 Chemistry
Divisions:College of Science > School of Chemistry
ID Code:30566
Deposited On:20 Feb 2018 11:28

Repository Staff Only: item control page