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Structure‐Function Relationships in Fructose Dehydration to 5‐Hydroxymethylfurfural under Mild Conditions by Porous Ionic Crystals Constructed with Analogous Building Blocks
Author(s) -
Yamada Takumi,
Kamata Keigo,
Hayashi Eri,
Hara Michikazu,
Uchida Sayaka
Publication year - 2019
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201900614
Subject(s) - furan , yield (engineering) , catalysis , chemistry , polyoxometalate , mesoporous material , ionic liquid , solvent , methanol , fructose , toluene , porosity , ionic bonding , chemical engineering , heterogeneous catalysis , organic chemistry , materials science , ion , composite material , engineering
5‐Hydroxymethylfurfural (HMF) is an important bio‐based chemical, which has been recognized as a key platform chemical for furan‐based polymers, biomass‐derived fuels, fine chemicals, and pharmaceuticals. Catalytic conversion of fructose into HMF is an important reaction, and the development of an efficient heterogeneous catalysts with high selectivity towards HMF is highly desired. In this study, several porous ionic crystals with a Keggin‐type polyoxometalate [PW 12 O 40 ] 3− and a macrocation [Cr 3 O(OOCCH 2 CN) 6 (H 2 O) 3 ] + as building blocks are synthesized, and the structures are solved by single crystal X‐ray diffraction analysis. The catalytic activities are basically dependent on the porosity, and the compound with a mesopore (aperture: 3 nm×2 nm) showed the highest HMF yield (30 % at 353 K in methanol/toluene solvent).