Synthesis of 5-hydroxymethylfurfural from gluco in a biphasic medium with AlCl3 and boric acid as
the catalyst
期刊名称： Chemical Papers
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双开头成语作者： Xu, Zhi-Lei,Wang, Xiao-Yue,Shen, Mei-Yu,Du, Chang-Hai心中的净土
年份： 2016年
财务自由的标准期号： 第12期
关键词： boric acid;AlCl3·6H2O;5-hydroxymethylfurfural;gluco
口红制作摘要：In combination with non-corrosive and low-toxic boric acid, AlCl3 ·6H2O was found to be effective for the synthesis of 5-hydroxymethylfurfural (5-HMF) from gluco. In this work, a 5-HMF yield of ≈ 60 % was obtained at 170°C for 40 min in a H2O/THF biphasic solvent mixture. An addition of NaCl not only improved the partition coefficients but also inhibited by-product formation. THF was identi
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fied as an ideal extraction solvent in biphasic systems containing C4 solvents. However, low concentration of ZnCl2, CoCl2·6H2O, MnCl2·4H2O, NiCl2·6H2O,
FeCl3·6H2O were not suitable for the catalyst system, while ZrOCl2·8H2O,
认字方法InCl3·4H2O showed high activity for the reaction. Boric acid incread the amount of Lewis acid sites in the reactive pha and enhanced the isomerization of gluco to fructo. A mechanism of the AlCl3·
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