Tag: M.W=100-150

Li, Feng; Jiang, Shanshan; Huang, Jin; Wang, Yue; Lu, Shiyu; Li, Cuiqin published the artcile< Catalytic transfer hydrogenation of furfural to furfuryl alcohol over a magnetic Fe3O4@C catalyst>, SDS of cas: 97-99-4, the main research area is catalytic transfer hydrogenation furfural furfuryl alc catalyst.

Carbon-encapsulated Fe3O4 (Fe3O4@C) catalysts were prepared by a solvothermal method using glucose as the carbon source and their physicochem. properties were characterized via various anal. techniques. Catalytic transfer hydrogenation of furfural over Fe3O4@C catalysts was investigated with isopropanol as the solvent and hydrogen donor. The Fe3O4@C catalysts exhibited high catalytic furfural transfer hydrogenation activity, selectivity of furfuryl alc., and high reusability. The mechanism of catalytic transfer hydrogenation of furfural by Fe3O4@C obeys the Meerwein-Ponndorf-Verley reduction on a Lewis acid site (Fe3O4).

New Journal of Chemistry published new progress about Meerwein-Ponndorf-Verley reduction. 97-99-4 belongs to class tetrahydrofurans, and the molecular formula is C5H10O2, SDS of cas: 97-99-4.

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Wang, Zhuangqing; Wang, Xinchao; Zhang, Chao; Arai, Masahiko; Zhou, Leilei; Zhao, Fengyu published the artcile< Selective hydrogenation of furfural to furfuryl alcohol over Pd/TiH2 catalyst>, Recommanded Product: (Tetrahydrofuran-2-yl)methanol, the main research area is palladium titanium hydride catalyst furfural hydrogenation furfuryl alc.

In this work, the selective hydrogenation of furfural to furfuryl alc. has been studied over Pd/TiH2 catalysts. The catalytic performances of several catalysts with different Pd loading (0.2-3% in weight) were discussed, among which a higher selectivity to furfuryl alc. was obtained over 0.5Pd/TiH2 and it gave rise to a 73% furfural alc. selectivity at complete conversion at 60°C. The physicochem. properties of catalysts were well characterized by TEM, XRD, XPS, Raman, TPR and TPD, as well as in-situ DRIFT for the adsorption of the reactant. The size and the electronic state of Pd particles, and the surface defects of catalysts presented significant influence on the catalytic performance. The furfural is preferentially adsorbed with its C = O bond on the boundary of Pd particle and TiH2 support, leading to the high selectivity to furfuryl alc.

Molecular Catalysis published new progress about Adsorption. 97-99-4 belongs to class tetrahydrofurans, and the molecular formula is C5H10O2, Recommanded Product: (Tetrahydrofuran-2-yl)methanol.

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Szubiakiewicz, Elzbieta; Modelska, Magdalena; Brzezinska, Magdalena; Binczarski, Michal J.; Severino, Courtney J.; Stanishevsky, Andrei; Witonska, Izabela published the artcile< Influence of modification of supported palladium systems by polymers: PVP, AMPS and AcrAMPS on their catalytic properties in the reaction of transformation of biomass into fuel bio-components>, Synthetic Route of 97-99-4, the main research area is acidic hydrolysis waste biomass furfural reduction palladium polymer catalyst.

Catalytic systems based on highly dispersed Pd nanoparticles deposited on SiO2 modified with PVP, AMPS and AcrAMPS were prepared and used in the hydrogenation of furfural obtained by the aqueous phase acidic hydrolysis of waste biomass (sugar beet pulp, sugar beet leaves, and brewing grain) from the food industry. Pd/PVP/SiO2 catalysts containing 50 g of Pd per 1 kg of catalyst were characterized by high activity in studied process, but lower selectivity to THFA in comparison to Pd/AMPS-SiO2 or Pd/AcrAMPS-SiO2 catalysts. The modification of SiO2 by PVP followed by the palladium catalyst loading, limited the adsorption of furfural by carbonyl group which probably leads to the improvement in THFA formation, which was confirmed by FTIR studies. The physico-chem. properties of the obtained palladium catalysts were investigated by XRD, CO chemisorption, TPR H2, TG-DTA-MS and BET techniques. The ICP-AES indicated no leaching of metal into the environment during furfural reduction, which confirms the stability of the Pd/PVP/SiO2, Pd/AMPS-SiO2 and Pd/AcrAMPS-SiO2 systems in the studied process.

Fuel published new progress about Acid hydrolysis. 97-99-4 belongs to class tetrahydrofurans, and the molecular formula is C5H10O2, Synthetic Route of 97-99-4.

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Li, Feng; Jiang, Shanshan; Zhu, Tianhan; Wang, Yue; Huang, Tao; Li, Cuiqin published the artcile< Organodiphosphonate Metal-Organic Frameworks Derived Ni-P@C Catalyst for Hydrogenation of Furfural>, Electric Literature of 97-99-4, the main research area is organodiphosphonate metal organic framework furfural hydrogenation.

Tetra-Et p-xylenediphosphate is used as the organic ligand to prepare the Ni-P-MOFs material belonging to the category of organic phosphoric acids, through pyrolysis and in-situ reduction reaction of Ni-P-MOFs material during the high-temperature carbonization process, Ni-P@C catalyst with graphitized carbon-covering Ni2P particles is prepared Compared with Ni-P catalyst prepared through coprecipitation method, Ni-P@C catalyst prepared with Ni-P-MOFs material can obviously decrease the formation temperature of Ni2P active phase and retain the schistose morphol. of the Ni-P-MOFs material, which is of high specific area, and meanwhile effectively suppresses the agglomeration of Ni2P particles. It is indicated by research on furfural hydrogenation performance that, Ni-P@C catalyst presents a high activity and stability in furfural hydrogenation. Products of furfural hydrogenation catalyzed by Ni-P@C catalyst mainly contain furfuryl alc., 2-methylfuran and 2-methyltetra hydrofuran, and the reaction temperature and reaction time have great influence on the distribution of products. The carbon-covering structure of Ni-P@C catalyst can effectively protect the active components of Ni2P, thus presenting a high stability and good reusability.

ChemistrySelect published new progress about Crystallinity. 97-99-4 belongs to class tetrahydrofurans, and the molecular formula is C5H10O2, Electric Literature of 97-99-4.

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Chuseang, Jirawat; Nakwachara, Rapeepong; Kalong, Munsuree; Ratchahat, Sakhon; Koo-amornpattana, Wanida; Klysubun, Wantana; Khemthong, Pongtanawat; Faungnawakij, Kajornsak; Assabumrungrat, Suttichai; Itthibenchapong, Vorranutch; Srifa, Atthapon published the artcile< Selective hydrogenolysis of furfural into fuel-additive 2-methylfuran over a rhenium-promoted copper catalyst>, SDS of cas: 97-99-4, the main research area is furfural hydrogenation methylfuran rhenium copper catalyst phys chem property.

The effect of Re promoter on Cu/γ-Al2O3 catalysts with various Cu : Re molar ratios was comprehensively investigated in comparison to the monometallic Cu/γ-Al2O3 and Re/γ-Al2O3 catalysts. The combination of Re and Cu resulted in a difficulty in reduction behavior of the Cu species, as detected using hydrogen temperature-programmed reduction, indicating that the Re promoter had stronger metal-support interactions. The acidity, as confirmed by ammonia temperature-programmed desorption, increased with the Re loading. X-ray diffraction and X-ray absorption near edge structure measurements of the spent CuRe catalyst revealed the existence of metallic Cu, Cu2O, CuO, amorphous CuAl2O4, ReO3, and NH4ReO4. The as-synthesized catalysts without reduction were directly utilized for the hydrogenolysis of furfural (FAL) into the fuel additive 2-methylfuran (2-MF). The highest 2-MF yield (86.4%) was accompanied by a 10.4% 2-methyltetrahydrofuran (2-MTHF) yield using the optimal Cu1Re0.14 catalyst under the investigated conditions (200°C, 6 h, and 20 bar H2). The kinetic study using furfuryl alc. (FOL), a primary intermediate, revealed that the rate of 2-MF production for the optimal Cu1Re0.14 catalyst was faster than that of the Cu benchmark. These results indicated that a small amount of oxophilic Re species could promote the hydrogenolysis of the C-OH bond in FOL to form 2-MF due to the synergistic effect between the Cu and Re active species. In addition, the activity of the Cu1Re0.14 catalyst remained highly stable through four consecutive experiments

Sustainable Energy & Fuels published new progress about Adsorption. 97-99-4 belongs to class tetrahydrofurans, and the molecular formula is C5H10O2, SDS of cas: 97-99-4.

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Kiani, Salma; Staples, Richard J.; Ted Treves, S.; Packard, Alan B. published the artcile< Synthesis and characterization of a tetramethyl furanone functionalized diiminedioxime, a potential ligand for 64Cu radiopharmaceuticals, and its copper(II) and nickel(II) complexes>, Recommanded Product: 2,2,5,5-Tetramethyldihydrofuran-3(2H)-one, the main research area is copper nickel furanone functionalized imineoxime preparation structure; crystal structure copper nickel furanone functionalized imineoxime; furanone functionalized imineoxime preparation potential radiopharmaceutical imaging ligand.

As part of the authors’ on-going effort to develop 64Cu-based radiopharmaceuticals for PET (positron emission tomog.) imaging of multidrug resistance in cancer, the authors prepared a tetramethylfuranone-functionalized diiminedioxime ligand, TMFPreH (TMFPreH = 4-[3-(4-hydroxyimino-2,2,5,5-dimethyl-dihydro-furan-3-ylideneamino)-propylimino]-2,2,5,5-tetramethyl-dihydrofuran-3(2H)-one oxime) and its Cu(II) and Ni(II) complexes. When the Cu(II) complex was prepared from Cu(ClO4)2 in EtOH, it was isolated as a Cu(II)-bridged dimer, but when it was prepared from Cu(OAc)2 and heated in acetone, an unusual example of an acetone adduct of the ligand is formed by reduction of one of the imine double bonds by the solvent. The Ni(II) complex is square planar with the perchlorate counterion not bonded.

Polyhedron published new progress about Crystal structure. 5455-94-7 belongs to class tetrahydrofurans, and the molecular formula is C8H14O2, Recommanded Product: 2,2,5,5-Tetramethyldihydrofuran-3(2H)-one.

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Morandi, Sara; Manzoli, Maela; Chan-Thaw, Carine E.; Bonelli, Barbara; Stucchi, Marta; Prati, Laura; Stormer, Heike; Wang, Wu; Wang, Di; Pabel, Michael; Villa, Alberto published the artcile< Unraveling the effect of ZrO2 modifiers on the nature of active sites on AuRu/ZrO2 catalysts for furfural hydrogenation>, Recommanded Product: (Tetrahydrofuran-2-yl)methanol, the main research area is furfural hydrogenation ruthenium gold nanoparticle catalytic activity.

Ru and AuRu nanoparticles were prepared by a sol-immobilization methodol. and deposited on different doped zirconia supports (ZrO2, Y-ZrO2 and La-ZrO2). The catalysts were characterized by analytic transmission electron microscopy (TEM), Fourier transform IR spectroscopy (FTIR) in a controlled atm. and XPS. TEM anal. showed that AuRu catalysts consist of Au-Ru particle aggregates with small Ru particles enriched on the Au surface. FTIR experiments of adsorbed CO and XPS analyses revealed that the presence of gold modifies the electronic properties of Ru, confirming the bimetallic nature of AuRu nanoparticles. The catalysts were tested in furfural hydrogenation using isopropanol as the hydrogen donor. The addition of Au to Ru did not significantly modify the activity and selectivity but enhanced the resistance to deactivation. The acid-base properties were monitored by acetonitrile adsorption followed by FTIR spectroscopy. It was shown that the acidity of the support greatly influences the selectivity. In particular, 71% selectivity to gamma-valerolactone was achieved over AuRu/Y-ZrO2, due to the modified acidic strength of Zr4+ sites on the Y-doped oxide.

Sustainable Energy & Fuels published new progress about Absorption. 97-99-4 belongs to class tetrahydrofurans, and the molecular formula is C5H10O2, Recommanded Product: (Tetrahydrofuran-2-yl)methanol.

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Bruna, Lauriane; Cardona-Farreny, Miquel; Colliere, Vincent; Philippot, Karine; Axet, M. Rosa published the artcile< In Situ Ruthenium Catalyst Modification for the Conversion of Furfural to 1,2-Pentanediol>, COA of Formula: C5H10O2, the main research area is ruthenium supported PVP hydrogenation catalyst value added product; biomass; furfural; nanocatalysis; pentanediol; ruthenium.

Exploiting biomass to synthesize compounds that may replace fossil-based ones is of high interest in order to reduce dependence on non-renewable resources. 1,2-Pentanediol and 1,5-pentanediol can be produced from furfural, furfuryl alc. or tetrahydrofurfuryl alc. following a metal catalyzed hydrogenation/C-O cleavage procedure. Colloidal ruthenium nanoparticles stabilized with polyvinylpyrrolidone in situ modified with different organic compounds are able to produce 1,2-pentanediol directly from furfural in a 36% of selectivity at 125°C under 20 bar of H2 pressure.

Nanomaterials published new progress about Biomass conversion catalysts. 97-99-4 belongs to class tetrahydrofurans, and the molecular formula is C5H10O2, COA of Formula: C5H10O2.

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Wang, Yongxing; Lu, Yaowei; Cao, Qiue; Fang, Wenhao published the artcile< A magnetic CoRu-CoOX nanocomposite efficiently hydrogenates furfural to furfuryl alcohol at ambient H2 pressure in water>, Computed Properties of 97-99-4, the main research area is ruthenium cobalt oxide magnetic nanocomposite hydrogenation catalyst; hydrogenation catalyst furfural furfuryl alc.

A one-pot synthesized CoRu-CoOX nanocomposite was reported as a magnetically recoverable catalyst for selective hydrogenation of furfural to furfuryl alc. in water at ambient H2 pressure.

Chemical Communications (Cambridge, United Kingdom) published new progress about Adsorption. 97-99-4 belongs to class tetrahydrofurans, and the molecular formula is C5H10O2, Computed Properties of 97-99-4.

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Zhang, Lin; Badea, Beth Ann; Enyeart, Debra; Berger, Elaine M.; Mais, Dale E.; Boehm, Marcus F. published the artcile< Synthesis of isotopically labeled 4-[1-(3,5,5,8,8-pentamethyl-5,6,7,8-tetrahydro-2-naphthyl)ethenyl]benzoic acid (LGD1069), a potent retinoid X receptor-selective Ligand>, Reference of 5455-94-7, the main research area is isotopically labeled retinoid preparation binding receptor; benzoic acid naphthylethenyl preparation binding receptor; naphthylethenylbenzoic acid preparation binding receptor.

LGD1069, 4-[1-(3,5,5,8,8-pentamethyl-5,6,7,8-tetrahydro-2-naphthyl)ethenyl]benzoic acid, is the first retinoid X receptor (RXR)-selective retinoid to enter clin. trials for treatment of dermatol. diseases and cancer. In order to exam. biol. properties such as receptor binding, metabolism and bioavailability, [13C]-, [14C]-, and [3H]-labeled LGD1069 is required. Herein, the authors describe synthetic methods for preparing isotopically labeled homologs of LGD1069 and [3H]-9-cis-retinoic acid with RXR active retinoids. The final radiolabeled products, [6,7-3H]-LGD1069 and 3-[14C]-LGD1069 have specific activities of 56 Ci/mmol and 49 mCi/mmol, resp. Radiochem. purities are 99.5% for [6,7-3H]-LGD1069 and 99.0% for 3-[14C]-LGD1069. The chem. purity is 99.0% for 3-[13CD3]-LGD1069. Competition binding studies with known retinoids show similar Kd values when either [6,7-32H]-LGD1069 or [3H]-9-cis-retinoic acid as the radioligand.

Journal of Labelled Compounds & Radiopharmaceuticals published new progress about Receptors Role: BSU (Biological Study, Unclassified), BUU (Biological Use, Unclassified), BIOL (Biological Study), USES (Uses). 5455-94-7 belongs to class tetrahydrofurans, and the molecular formula is C8H14O2, Reference of 5455-94-7.

Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem