Article
Biochemistry & Molecular Biology
Mahmoud Nasrollahzadeh, Nayyereh Sadat Soheili Bidgoli, Nasrin Shafiei, Fariborz Momenbeik
Summary: The study successfully prepared sulfated lignin (SL) as a catalyst for the production of 5-hydroxymethylfurfural (5-HMF), achieving promising results with high conversion and yield after a 60-minute reaction at 140 degrees Celsius.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Engineering, Environmental
Wenze Guo, Zheng Zhang, Jasper Hacking, Hero Jan Heeres, Jun Yue
Summary: This research successfully demonstrated a two-step process of converting glucose to fructose followed by dehydration to 5-hydroxymethylfurfural (HMF), with insights into the excess formation of formic acid in the process. By optimizing the conditions based on the developed kinetic model, the synthesis of HMF was efficiently achieved in microreactors, showing potential for process intensification and scale-up.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Organic
Kai Matsui, Kohei Toh, Manabu Hatano, Kazuaki Ishihara
Summary: A multiselective Diels-Alder reaction involving alpha-arylacroleins and cyclopentadiene has been developed using BBr3-assisted chiral BINOL-derived phosphoric acid catalysts. The chiral cavity of the in situ-formed acid-base cooperative catalysts plays a key role in controlling the exo- and enantioselectivity, particularly by suppressing the competitive hetero Diels-Alder reaction effectively.
Article
Chemistry, Physical
Mahmoud Nasrollahzadeh, Zahra Nezafat, Fariborz Momenbeik, Yasin Orooji
Summary: 5-Hydroxymethylfurfural (5-HMF) has been successfully synthesized using a polystyrene-supported catalyst, which was characterized and showed good performance stability after recycling for 4 cycles.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Green & Sustainable Science & Technology
M. Srida, S. -Y. Chen, S. M. Smith, C. Ngamcharussrivichai, S. Boonyuen, H. Tateno, T. Mochizuki, A. Luengnaruemitchai
Summary: This study prepared bifunctional solid acid catalysts composed of aluminum (Al) as Lewis acid sites and sulfonic acid (SA) as Bronsted acid sites by direct synthesis. These catalysts were evaluated for the conversion of glucose to 5-hydroxymethylfurfural (HMF) and the 5Al-15SA-S15 catalyst achieved 95% conversion of glucose and a 51% yield of HMF with good stability and reusability. This study provides important insights into the properties and applications of solid acid catalysts.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Multidisciplinary
Yao Shen, Fang Lin, Kang Wang, Xitao Wang
Summary: By doping CaO, alkyl grafting and NbCl5 impregnation on γ-Al2O3 beads, an efficient catalyst was constructed for the conversion of glucose to 5-HMF. Under suitable reaction conditions, complete conversion of glucose and high yield of 5-HMF can be achieved.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Zhen-Bing Si, Jin-Shan Xiong, Ting Qi, Hong-Mei Yang, Han-Yun Min, Hua-Qing Yang, Chang-Wei Hu
Summary: The study investigates the aerobic oxidation mechanism of HMF to DFF catalyzed by VO2+ with a counterpart anion in DMA solution. The reaction process consists of three main stages, with the rate-determining step associated with the cleavage of the C-H bond of the first HMF molecule. The peroxide [V(O)(3)(DMA)](+) species exhibits better oxidative activity than the initial [V(O)(2)(DMA)(2)](+) species.
Article
Energy & Fuels
Xiatian Tian, Benkun Qi, Shaofeng Zhang, Jianquan Luo, Yinhua Wan
Summary: The study found that Lewis acid AlCl3 is effective in catalyzing the conversion of sucrose to HMF, and combining it with different Bronsted acids or changing the Lewis acid/Bronsted acid ratio can shorten the time required to reach maximum HMF yield. In the green reaction media of GVL solvent, sucrose conversion resulted in comparable HMF yields to the DSMO-water system. The addition of NaCl and Na2SO4 had opposite effects on HMF production.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Chemistry, Multidisciplinary
Pengfei Wu, Miao Yang, Jifeng Pang, Dong Fan, Lei Song, Tantan Sun, Mingyuan Zheng, Peng Tian, Tao Zhang
Summary: The synthesis of efficient and controllable SAPO-34 nanocrystallites catalyst for the conversion of biomass into 5-hydroxymethylfurfural (5-HMF) is of great significance. The obtained SAPO-34 nanocrystallites exhibited remarkable activity in the conversion of mono-, di- and poly-saccharides into 5-HMF.
Article
Green & Sustainable Science & Technology
Akshay R. Mankar, Ashish Pandey, Arindam Modak, K. K. Pant
Summary: The research shows that using ChCI: LA deep eutectic solvents as catalyst can achieve high yields of 5-HMF, and compared to conventional oil bath heating, significantly higher yields can be obtained in a shorter time with microwave heating.
Article
Chemistry, Organic
Rui Sun, Hon-Yu Guo, Shuang-Shuang Ma, Yao-Feng Wang, Zheng-Kun Yu, Bao-Hua Xu
Summary: Methods for the Ru(dppbsa)-catalyzed hydrodeoxygenation and reductive etherification of ketones and aldehydes were developed. The reaction path depends on the presence of beta-CH functionality in the carbonyl substrates. The chemoselectivity can be adjusted based on the bond strengths of O-H and C-H bonds, and this research is significant for improving the efficiency of reductive etherification.
ORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Inorganic & Nuclear
Yue Yu, Zhongwu Lv, Haijun Zhong, Wei Bai, Min Ji
Summary: Isobutene dimerization is a vital method to effectively use mixed C-4 and produce isooctane with a high-octane number as a substitute for MTBE in gasoline. This study developed a series of supported metal sulfate catalysts FexZny/SiO2, which were characterized by various techniques. Fe0.2Zn1.8/SiO2 exhibited a remarkable isobutene conversion of up to 89%, with no conversion of n-butene, and a selectivity of 57% for isooctenes (C-8(=)) after 10 hours of continuous operation. Moreover, the isobutene conversion could be maintained above 80% for 50 hours. The supported catalysts contained Zn2+, Zn+, Fe3+, and Fe2+ species, and a synergistic effect was found between Zn2+ and Fe2+.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Tripti Chhabra, Suman Dhingra, C. M. Nagaraja, Venkata Krishnan
Summary: This study investigates the influence of Lewis and Bronsted acidic sites on metal-free graphitic carbon nitride catalysts for the conversion of monosaccharides to 5-hydroxymethylfurfural. By doping boron and functionalizing with sulfonic acid, different acidic sites combinations were tested with varying yields of the desired product. This research provides insights on the optimal acidic sites composition for biomass conversion reactions.
Article
Engineering, Chemical
Xusheng Guo, Haoxiang Zhu, Yuxi Si, Xilei Lyu, Youwei Cheng, Liping Zheng, Lijun Wang, Xi Li
Summary: In this study, a cheap and efficient deep eutectic solvent was developed for the conversion of glucose and other carbohydrates to 5-Hydroxymethylfurfural (HMF). The high HMF yields achieved from various carbohydrates make this system a promising method for HMF synthesis. The identification of the active species in the solvent provides a basis for future research on the dehydration mechanisms.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Engineering, Chemical
Haoxiang Zhu, Youdi Zhang, Xusheng Guo, Youwei Cheng, Lijun Wang, Xi Li
Summary: In this study, the factors influencing the one-pot production of HMF from glucose in an acetone-water solvent were experimentally investigated. By optimizing the parameters, a high HMF yield was achieved and an economic and efficient HMF production process was proposed, providing support for subsequent industrial demonstration development.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
