Journal
CHEMSUSCHEM
Volume 14, Issue 23, Pages 5311-5319Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.202102021
Keywords
5-methylfurfural; biomass valorization; d-fructose; green chemistry; transfer hydrogenation
Funding
- Jiangxi Province [2020KY40]
- National Key Research and Development Program of China [2017YFD0800900]
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A robust catalytic system has been developed for the green synthesis of 5-methylfurfural using iodide-mediated transfer hydrogenation. The system allows for efficient synthesis of 5-MF from d-fructose and can be used for six consecutive cycles without any decrease in yield. Additionally, the co-production of 5-MF and furfural from raw biomass makes this methodology more competitive than other routes.
Herein, a robust catalytic system was developed for the green synthesis of 5-methylfurfural (5-MF) by iodide-mediated transfer hydrogenation. Around 50 % of 5-MF was yielded from d-fructose within 7.5 min using NaI as the catalyst and formic acid as both the hydrogen source and co-catalyst. The catalytic system was used for six consecutive cycles without any decrease in the yield. Various starch and raw biomass could be used as promising starting materials for 5-MF synthesis with moderate yields, and the productivity of 5-MF from corn starch reached 103 mmol g(cat)(-1) h(-1), which is comparable with the best result from l-rhamnose. Moreover, the co-production of 5-MF and furfural from raw biomass makes this methodology more competitive than other routes.
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