RSC Advances p. 63055 - 63061 (2014)
Update date:2022-08-11
Topics:
Zhao, Qian
Sun, Zhong
Wang, Shengtian
Huang, Guohui
Wang, Xiaohong
Jiang, Zijiang
A series of acid-base bifunctional heteropolyacids (HPAs) (C6H15O2N2)3-xHxPW12O40 (abbreviated as Ly3-xHxPW) have been designed using different ratios of HPAs with amino acid lysine in order to control their acid-base properties. The amino acid group facilitated the HPAs forming micellar assemblies in choline chloride-fructose deep eutectic solvents. In the dehydration of fructose to 5-hydroxymethylfurfural (HMF), Ly3-xHxPW exhibited different catalytic activities because of their different acid-base properties. Among all the HPA catalysts, Ly2HPW gave the best results with 93.3% conversion and 92.3% HMF yield within a very short time, i.e. 1 min under the conventional temperature of 110 °C using choline chloride (ChCl) as solvent, and this was almost the best result by far. The highest activity and selectivity of Ly2HPW came from the synergistic effect between certain acidic and basic capacities, which provides ready accessibility to the nucleophilic (-NH2) and electrophilic (H) sites. Moreover, this catalyst was tolerant to highly concentrated feedstock (~66.7 wt%) with the additive ChCl. Ly2HPW performed as a heterogeneous catalyst in the ChCl system and could be recycled by simple washing treatment.
View MoreHangzhou innopharma technology Co,.Ltd.
Contact:+86-13388601988
Address:Room845,lixin building, moganshan road, hangzhou, china
SHANGHAI ARCADIA BIOTECHNOLOGY LTD.
Contact:+86-21-61353236
Address:SUITE 901, BUILDING WENSLI, 1378 LU JIA BANG RD, SHANGAHI 200011, P.R.CHINA
Jiangxi Dongbang Pharmaceutical Co., Ltd.
Contact:+86-795-4433603, 4433388
Address:Fengxin Industrial Park, Fengxin County, Jiangxi Province, P.R.C
Taizhou Crene Biotechnology co.ltd
Contact:86-576-88813233 88205808
Address:Economic Developed Zone of Taizhou Zhejiang China
BrightGene Bio-Medical Technology Co., Ltd.
website:https://en.bright-gene.com/
Contact:+86-512-62551801
Address:Building C25 - C31, No. 218 Xinghu Road, Suzhou Industrial Park, Suzhou, Jiangsu, China.
Doi:10.1134/S1070363216100133
()Doi:10.1016/j.catcom.2015.01.007
(2015)Doi:10.1111/cbdd.12730
(2016)Doi:10.1002/chem.201204006
(2013)Doi:10.1021/jo00406a011
(1978)Doi:10.1002/ejoc.200900248
(2009)