Tag: 100-200

On June 30, 2021, Shao, Yuewen; Wang, Junzhe; Sun, Kai; Gao, Guoming; Li, Chao; Zhang, Lijun; Zhang, Shu; Xu, Leilei; Hu, Guangzhi; Hu, Xun published an article.Application of 111-29-5 The title of the article was Selective hydrogenation of furfural and its derivative over bimetallic NiFe-based catalysts: Understanding the synergy between Ni sites and Ni-Fe alloy. And the article contained the following:

Pentanediols (1,2-pentanediol and 1,5-pentanediol) are important feedstock for synthesis of fine chems., production of which from the biomass-derived furfural or furfuryl alc. (FA) has been considered as a sustainable route and attracted much interest. In this study, the catalysts with Ni-Fe as the metal sites and Mg-Al layered double hydroxides (LDH) as precursor of support were synthesized. The results showed that the presence of Fe in catalyst affected both the development of the pores of the catalyst and the catalytic behaviors of nickel species. A low Fe content facilitated formation of mesoporous structure, but the higher content destroyed the LDH structure, resulting in a decreased surface area. Fe could also react with metallic Ni to form NiFe alloy. This decreased the catalytic activity for the further hydrogenation of the furan ring in FA, and FA would thus have the chance to produce pentanediols via hydrogenolysis. The in-situ diffuse reflectance IR Fourier transform spectroscopy characterization of hydrogenation of FA indicated that the alloying between Fe and Ni resulted in a weak adsorption of C=C group in furan ring and moderate adsorption of C-O-C group, which suppressed the complete hydrogenation of FA while facilitated the ring-opening of FA to form the pentanediols. The experimental process involved the reaction of Pentane-1,5-diol(cas: 111-29-5).Application of 111-29-5

The Article related to furfural hydrogenation nickel iron catalyst synergistic effect, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Application of 111-29-5

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On August 7, 2020, Zhu, Yanru; Zhao, Wenfang; Zhang, Jian; An, Zhe; Ma, Xiaodan; Zhang, Zhijun; Jiang, Yitao; Zheng, Lirong; Shu, Xin; Song, Hongyan; Xiang, Xu; He, Jing published an article.Safety of Pentane-1,5-diol The title of the article was Selective activation of C-OH, C-O-C, or C=C in furfuryl alcohol by engineered Pt Sites supported on layered double oxides. And the article contained the following:

The selective activation of targeted bonds in biomass-derived furfural or furfuryl alc. with complex chem. linkages (C-C/C-H/C-O, C=C/C=O, or C-O-H/C-O-C) is of great challenge for biomass upgrading, expecting well-defined catalyst and definite catalytically active sites. This work demonstrates an efficient targeted activation to C-OH, C-O-C, or C=C by engineering the structure of catalytic Pt sites, affording 2-methylfuran (2-MF), tetrahydrofurfuryl alc. (THFA), or 1,2-pentanediol (1,2-PeD) as product in the hydroconversion of furfuryl alc. The catalytic Pt sites have been engineered as at. Pt, coordination unsaturated Pt-Pt in atom-thick dispersion, or coordination unsaturated 3D Pt-Pt by tailoring the Pt dispersion (single atom, 2D cluster, or 3D cluster) on Mg and Al-containing layered double oxide (Mg(Al)O) support. The selective activation of C-OH, C-O-C, or C=C has been traced with the FT-IR spectra recorded surface reaction. On at. Pt, C-O-H is easily activated, with the assistance of Mg(Al)O support, with O-terminal adsorption without affecting furan C-O and C=C. However, C=C in the furan ring is easier to be activated on coordination-unsaturated Pt-Pt in atom-thick dispersion, resulting in a step-by-step hydrogenation to generate THFA. On coordination-unsaturated 3D Pt-Pt, the hydrogenolysis of furan ring is favored, resulting in the cleavage of furan C-O to produce 1,2-PeD. Also, the Mg(Al)O supports derived from Mg and Al layered double hydroxides (LDHs) here also play a key role in promoting the selectivity to 1,2-PeD by providing basic sites. The experimental process involved the reaction of Pentane-1,5-diol(cas: 111-29-5).Safety of Pentane-1,5-diol

The Article related to selective activation carbon oh oxygen furfuryl alc engineered, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Safety of Pentane-1,5-diol

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On January 15, 2022, Xu, Shuguang; Xiao, Yuan; Zhang, Wenyu; Liao, Shengqi; Yang, Ruofeng; Li, Jianmei; Hu, Changwei published an article.Electric Literature of 473-81-4 The title of the article was Relay catalysis of copper-magnesium catalyst on efficient valorization of glycerol to glycolic acid. And the article contained the following:

The exploration of potential application of glycerol is of particular importance for solving the oversupply of glycerol as an unavoidable byproduct of biodiesel and affording profitable possibilities for sustainable biodiesel. Herein, we developed a simple, cheap but robust Cu1Mg4 catalyst, which exhibited outstanding catalytic activity for the selective conversion of glycerol towards valuable glycolic acid, eliminating the addition of extra inorganic base. As high as 71.8% yield of glycolic acid was achieved, the highest value to date as far as we know. In combination of experiment and DFT calculations, it was revealed that Cu, Mg species in catalyst enabled the relay catalysis for the cascade reactions in glycerol transformation. Cu species in catalyst dominated the first dehydrogenation reaction of glycerol to glyceraldehyde, which was promoted by Mg species. Mg species followed to catalyze the next cleavage of C2-C3 bond in glyceraldehyde to generate glycolaldehyde. The final oxidation of glycolaldehyde to glycolic acid was achieved by the catalysis of Cu species. This relay catalysis of Cu1Mg4 catalyst significantly inhibited the formation of glyceric acid and lactic acid byproducts, thereby enabling the selective generation of glycolic acid. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Electric Literature of 473-81-4

The Article related to copper magnesium catalyst glycerol oxidation glycolic acid, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Electric Literature of 473-81-4

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On May 31, 2021, Cai, Xiang; Ke, Youbin; Wang, Bowei; Zeng, Yuyao; Chen, Ligong; Li, Yang; Bai, Guoyi; Yan, Xilong published an article.Electric Literature of 111-29-5 The title of the article was Efficient catalytic amination of diols to diamines over Cu/ZnO/γ-Al2O3. And the article contained the following:

Catalytic amination of diols with dimethylamine is a promising approach for the preparation of tetra-Me diamines. In this work, a series of Cu/ZnO/γ-Al2O3 catalysts were developed by co-precipitation and employed in the amination of 1,6-hexanediol (HDO) with dimethylamine (DMA) to N,N,N’,N’-tetramethyl-1,6-hexanediamine (TMHDA) in a fixed-bed reactor. Cu/ZnO/γ-Al2O3-20 exhibited remarkable catalytic performance. Nearly complete conversion of HDO was reached and 93% selectivity of TMHDA was obtained at 180°C. The excellent catalytic performance was attributed to the highly dispersion of Cu, which was promoted by doped ZnO. The results of characterizations (TEM, H2-TPR, XRD, XPS, etc.) indicated that doped ZnO could efficiently decrease the average particle size and improve the dispersion of Cu. The promoting effect could be ascribed to strong interaction between Cu and ZnO. The availability and effectiveness of Cu/ZnO/γ-Al2O3 catalyst offer a prospective way for the industrial production of tertiary diamines through amination of diols. The experimental process involved the reaction of Pentane-1,5-diol(cas: 111-29-5).Electric Literature of 111-29-5

The Article related to catalyst zinc oxide alumina copper amination diol diamine, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Electric Literature of 111-29-5

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Alcohol – Wikipedia,
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On May 20, 2022, Yang, Dan; Liu, Xuan; Song, Fei; Dai, Yihu; Wan, Xiaoyue; Zhou, Chunmei; Yang, Yanhui published an article.Name: 2,3-Dihydroxypropanoic acid The title of the article was Chemoselective Oxidation of Glycerol over Platinum-Based Catalysts: toward the Role of Oxide Promoter. And the article contained the following:

The metal oxide promoters remarkably enhance the catalytic activity of supported Pt catalysts in the glycerol oxidation toward glyceric acid, whereas the primary factor that metal oxide promotes the reaction, as well as the kinetics relevant step remain indistinct. Herein, manganese dioxide (MnO2) is chosen as a model to uncover the role of promoter in the glycerol oxidation over Pt-based catalyst in alkali-free solution The results prove that the superior catalytic performance is mainly attributed to the increased synergistic interaction between Pt particles and the metal oxides to boost the activation of oxygen (not glycerol), while the increased dispersion shows slight effect. Furthermore, the detailed kinetic studies reveal that MnO2 is prone to accelerate the awkward step of glyceraldehyde to glyceric acid, and the lattice oxygen of MnO2 also involves in this particular step. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Name: 2,3-Dihydroxypropanoic acid

The Article related to platinum based catalyst glycerol chemoselective oxidation, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Name: 2,3-Dihydroxypropanoic acid

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Alcohol – Wikipedia,
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On March 31, 2010, Nagendramma, Ponnekanti; Kaul, Savita; Bisht, R. P. S. published an article.COA of Formula: C7H16O2 The title of the article was Study of synthesised ecofriendly and biodegradable esters: fire resistance and lubricating properties. And the article contained the following:

Biodegradable esters have been synthesized using Polyols such as 2-methyl-2-Pr 1,3-propane diol, 2,2-di Me 1,3-propane diol, 1,1,1-[tris] hydroxyl Me propane, 1,1,1-[tris] hydroxyl Me ethane and carboxylic acids (C6-C12) both pure and their mixtures with indigenous ion exchange resin (Indion-130) catalyst. The products were characterized for their physico-chem. properties and were evaluated for their lubrication performance. These were then compared with VG-22 grade fire resistant hydraulic fluids (FRHFs). The products were found to have good potential for use as a base stock for formulations as FRHF of VG-22 grade. The experimental process involved the reaction of 2-Methyl-2-propylpropane-1,3-diol(cas: 78-26-2).COA of Formula: C7H16O2

The Article related to biodegradable ester fire resistance lubricating property, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.COA of Formula: C7H16O2

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Alcohol – Wikipedia,
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On May 20, 2020, Kuang, Bifeng; Zhang, Qian; Fang, Yanxiong; Bai, Yong; Qiu, Songbai; Wu, Ping; Qin, Yanlin; Wang, Tiejun published an article.Recommanded Product: Pentane-1,5-diol The title of the article was Ring Opening of Cyclic Ether for Selective Synthesis of Renewable 1,5-Pentanediol over Pt/WO3@SiO2 Catalysts. And the article contained the following:

In this paper, the WO3-embedded in mesoporous SiO2 framework (WO3@SiO2) was developed using facile modified sol-gel, and was further applied as the support of Pt/WO3@SiO2 catalysts during impregnation. The ring-opening of cyclic ether such as biomass-derived tetrahydrofurfuryl alc. (THFA), for selective synthesis of renewable 1, 5-pentanediol (1, 5-PeD), was efficiently accomplished over Pt/WO3@SiO2 catalysts. This special nanocomposite structure provided both abundant active sites and strong synergetic coupling, thus significantly boosting the catalytic performances. The effects of reaction parameters were also investigated on the catalytic performances, including W/Si molar ratio, reaction time, reaction temperature and reduction temperature The high THFA conversion of 82.9% and 1, 5-PeD selectivity of 72.9% were achieved under the optimized reaction conditions. The preliminary characterization results suggested that the Bronsted acid sites of HxWO3 species with proper acid amounts played an important role in controlling the selective ring-opening of THFA cyclic ether towards 1, 5-PeD. The experimental process involved the reaction of Pentane-1,5-diol(cas: 111-29-5).Recommanded Product: Pentane-1,5-diol

The Article related to ring opening catalyst cyclic ether renewable pentanediol, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Recommanded Product: Pentane-1,5-diol

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On May 31, 2022, Yang, Lihua; Jiang, Yuanyuan; Zhu, Zihui; Hou, Zhaoyin published an article.Synthetic Route of 473-81-4 The title of the article was Selective oxidation of glycerol over different shaped WO3 supported Pt NPs. And the article contained the following:

In this work, different shaped WO3 (rod-like, lamellar and cuboid) supported Pt catalysts were prepared in a facile routine and tested in the selective oxidation of glycerol in base-free aqueous solution Characterizations indicated that rod-like WO3 supported Pt catalyst (Pt/R-WO3) possesses higher surface area because of the formation of vertical pore channels and highly exposed plane (100), the deposited Pt atoms combined strongly with the terminal -W=O in rod-like WO3. These properties promoted the adsorption, storage and surface diffusion of oxygen over Pt/R-WO3 which exhibited the excellent activity for the selective oxidation of glycerol. And the higher amount of acid sites on the surface of Pt/R-WO3 enhanced the selectivity of glyceric acid. The calculated turnover frequency of each Pt atom in Pt/R-WO3 reached 946 h-1 at 60°C. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Synthetic Route of 473-81-4

The Article related to oxidation glycerol shaped wo3 supported platinum, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Synthetic Route of 473-81-4

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Alcohol – Wikipedia,
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On April 6, 2020, Shao, Yuewen; Wang, Junzhe; Du, Huining; Sun, Kai; Zhang, Zhanming; Zhang, Lijun; Li, Qingyin; Zhang, Shu; Liu, Qing; Hu, Xun published an article.HPLC of Formula: 111-29-5 The title of the article was Importance of Magnesium in Cu-Based Catalysts for Selective Conversion of Biomass-Derived Furan Compounds to Diols. And the article contained the following:

Selectively hydrogenating the carbonyl of furfural and opening of the furan ring is challenging but crucial for efficient conversion of furfural to pentanediols, the valuable chems. In this study, CuMgAl catalysts with highly dispersed Cu particles and tunable basic sites were synthesized with layered double hydroxides as precursors for hydrogenation of furfural to furfuryl alc. (FA) and the subsequent hydrogenolysis of FA to 1,2-pentanediol and 1,5-pentanediol. The presence of varied content of Mg in the catalyst promoted dispersion of copper oxide and exposure of metallic copper species, weakened interaction between copper oxides and the carrier, suppressed sintering of metallic copper species, and increased abundance of the basic sites, promoting the catalytic activity/selectivity/stability. Strong chem. adsorption of the furan ring in FA on basic sites of the catalyst suppressed hydrogenation of the furan ring and facilitated opening of the furan ring in FA, the rate-determining step for formation of the diols. High yields of 1,2-pentanediol and 1,5-pentanediol are achieved over the copper-based catalyst via the hydrogenolysis of furfuryl alc. The experimental process involved the reaction of Pentane-1,5-diol(cas: 111-29-5).HPLC of Formula: 111-29-5

The Article related to magnesium copper catalyst biomass furan diol, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.HPLC of Formula: 111-29-5

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Alcohol – Wikipedia,
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On October 25, 2010, Uslu, Aylin; Coles, Simon J.; Davies, David B.; Esen, Muekremin; Hursthouse, Michael B.; Kilic, Adem published an article.Reference of 2-Methyl-2-propylpropane-1,3-diol The title of the article was Effect of gem 2,2′-disubstitution and base in the formation of spiro- and ansa-1,3-propandioxy derivatives of cyclotriphosphazenes. And the article contained the following:

The gem-dialkyl effect was studied in the reactions of cyclotriphosphazene, N3P3Cl6 1, with various 2,2′-derivatives of 1,3-propandiol, CXY(CH2OH)2, in either THF or DCM to form spiro (6-membered) and ansa (8-membered ring) derivatives The reactions were made with a number of sym.-substituted (X = Y, Me, Et, Bu and a malonate ester) and unsym.-substituted (X ≠ Y, Me/H, Ph/H, Me/Pr, Et/Bu and Br/NO2) 1,3-propandiols. The products were analyzed by 1H and 31P NMR spectroscopy and some of the spiro and ansa derivatives were also characterized by x-ray crystallog. Reactions of 1 with unsym.-substituted 1,3-propandiols gave two structural isomers of ansa-substituted compounds, both isomers (endo and exo) were structurally-characterized by x-ray crystallog. for the Et/Bu derivative The regioselectivity of the reaction is changed when the base is changed. The relative proportions of spiro and ansa compounds formed under different reaction conditions were quantified by 31P NMR measurements of the reaction mixtures The results were rationalized mainly in terms of the electronic effect of the substituents, whereas the steric effect has a secondary role in the formation of both spiro and ansa compounds The experimental process involved the reaction of 2-Methyl-2-propylpropane-1,3-diol(cas: 78-26-2).Reference of 2-Methyl-2-propylpropane-1,3-diol

The Article related to spiro ansa propandioxy cyclotriphosphazene preparation crystal mol structure, cyclocondensation cyclotriphosphazene propandiol gem dialkyl effect, Organometallic and Organometalloidal Compounds: Metal Heterocyclic Compounds and Cluster Compounds and other aspects.Reference of 2-Methyl-2-propylpropane-1,3-diol

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Alcohol – Wikipedia,
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