Month: November 2022

On January 31, 2020, Jamil, Farrukh; Al-Muhtaseb, Ala’a H.; Naushad, Mu; Baawain, Mahad; Al-Mamun, Abdullah; Saxena, Sandeep K.; Viswanadham, N. published an article.Safety of 2,4-Di-tert-butylphenol The title of the article was Evaluation of synthesized green carbon catalyst from waste date pits for tertiary butylation of phenol. And the article contained the following:

The present study is intended to adopt a facile method for preparing a sulfonated green carbon catalyst from date pits biomass. Catalyst synthesis involves in situ carbonization and sulfonation and it has been characterized by following techniques such as XRD, SEM, EDX, TEM, FTIR, TGA, and BET. Surface and internal morphol. results exhibited that the synthesized sulfonated carbon material possesses a mesoporous structure, while activated carbon possesses a microporous structure. Furthermore, the Fourier transform IR (FTIR) spectra confirmed the presence of acidic groups (-OH, -COOH, and -SO3H) in synthesized sulfonated carbon material. Sulfonated carbon material exhibited high acidity (4.7 mmol/g) and good thermal stability. The application of this catalyst for the tertiary butylation of phenol without using any solvent has been investigated. The phenol alkylation reaction showed maximum conversion at reaction condition: temperature (140°C) with 2 bar (nitrogen gas) pressure with maximum phenol conversion 79.27 wt%, with 68.01% selectivity towards 4TBP+2,4TBP, which is used as an intermediate in antioxidants. The catalyst exhibits comparable catalytic performance up to five reaction cycles. Thus it can be concluded that waste date pits can be successfully employed for green catalyst synthesis and used for reactions involving large mols. The experimental process involved the reaction of 2,4-Di-tert-butylphenol(cas: 96-76-4).Safety of 2,4-Di-tert-butylphenol

The Article related to phenol tertiary butylation green carbon catalyst synthesis, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Safety of 2,4-Di-tert-butylphenol

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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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Alcohol – Wikipedia,
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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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Alcohol – Wikipedia,
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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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Alcohol – Wikipedia,
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On August 31, 2020, Wang, Chenguang; Liu, Yong; Cui, Zhibing; Yu, Xiaohu; Zhang, Xinghua; Li, Yuping; Zhang, Qi; Chen, Lungang; Ma, Longlong published an article.Recommanded Product: 111-29-5 The title of the article was In Situ Synthesis of Cu Nanoparticles on Carbon for Highly Selective Hydrogenation of Furfural to Furfuryl Alcohol by Using Pomelo Peel as the Carbon Source. And the article contained the following:

A facile approach was developed to directly synthesize carbon-supported metal nanoparticles with pomelo peel as the carbon source and metal nitrate solution as the metal source. Fe/C, Co/C, Ni/C, and Cu/C catalysts were prepared after calcination in N2 without further reduction The metal nanoparticles and formation mechanism were investigated by multiple techniques such as XRD, HRTEM, XPS, FTIR spectra, SEM, and TG-MS thermal anal. In the case of furfural hydrogenation, Cu/C catalyst exhibited the best activity and exclusive selectivity to produce furfuryl alc. with complete conversion, and excellent selectivity can be maintained at a higher temperature of 240°C. The particle size of Cu nanoparticles can be tuned by the calcination temperature and metal loading for improving catalytic activity. The excellent performance of Cu nanoparticles was also studied by d. functional theory calculation, agreeing well with the experiments A green and facile approach to in situ synthesis of metal nanoparticles on carbon for exclusively selective hydrogenation of furfural. The experimental process involved the reaction of Pentane-1,5-diol(cas: 111-29-5).Recommanded Product: 111-29-5

The Article related to copper nanoparticle carbon hydrogenation furfural furfuryl alc, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Recommanded Product: 111-29-5

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

On September 15, 2021, Xiong, Junping; Zhang, Dejin; Yang, Guoqiang; Zhang, Zhibing published an article.Computed Properties of 96-76-4 The title of the article was Alkylation of Phenol and tert-Butyl Alcohol Catalyzed by Deep Eutectic Solvents under Mild Conditions. And the article contained the following:

Tert-Bu phenol is an important intermediate for organic synthesis and the preparation of tert-Bu phenol under mild conditions is of great significance. In our work, five kinds of deep eutectic solvents were synthesized to catalyze the alkylation of phenol and tert-Bu alc. The deep eutectic solvent consisting of choline bisulfate (ChBf) and p-toluene sulfonic acid (p-TsOH) was proved to be a better catalyst. By employing the response surface methodol. to optimize the reaction conditions, we found that 99.5% conversion of tert-Bu alc. was obtained at a reaction temperature of 30°C. The temperature of alkylation reaction was much milder than those in previous reports. The kinetic model for this reaction was established based on the Runge-Kutta-Fehlberg method and the recycle performance for the catalyst was evaluated. Excellent conversion of tert-Bu alc. can be obtained after recycling eight times. This method provides a potential route for the synthesis of tert-Bu phenol under mild conditions in industry. The experimental process involved the reaction of 2,4-Di-tert-butylphenol(cas: 96-76-4).Computed Properties of 96-76-4

The Article related to phenol tert butanol alkylation catalyst deep eutectic solvents, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Computed Properties of 96-76-4

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On April 1, 2021, Yong, Yang; Gu, Huajun; Zhang, Qingxiao; Fang, Zhang; Hui, Li published an article.Application In Synthesis of SweetPearlR P300 DC Maltitol The title of the article was Hollow ni-p amorphous alloy nanospheres: An efficient catalyst for sugars hydrogenation to polyols. And the article contained the following:

In this paper, hollow Ni – P nanospheres (NSs) are prepared through Ni electroless plating on the Au-activated silica NSs externally covered by aminopropyl moieties, followed by removing the silica template with sodium hydroxide. With various characterizations, the resulting hollow Ni – P NSs are identified to be amorphous alloy. During liquid-phase hydrogenation of sugars to sugar alcs., the hollow Ni – P amorphous alloy NSs delivered much superior catalytic performances to the com. Raney Ni catalyst, showing a good potential in practical applications. Of particular interest is the unique hollow chamber structure of the hollow Ni – P amorphous alloy NSs, which allows for improving catalytic activity and durability relative to those associated with the dense Ni – P amorphous alloy NSs. This work demonstrated that such hollow Ni materials with nanoporous chamber structure displayed advantages such as easy exptl. handling and high accessibility for the reactants in liquid-phase reaction, more Ni active sites, as well as the existence of more electron-enriched inner surface, which is essential to provide highly efficient catalysts for some reactions. The experimental process involved the reaction of SweetPearlR P300 DC Maltitol(cas: 585-88-6).Application In Synthesis of SweetPearlR P300 DC Maltitol

The Article related to sugar polyol amorphous alloy nanosphere catalyst hydrogenation, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Application In Synthesis of SweetPearlR P300 DC Maltitol

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Alcohol – Wikipedia,
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On August 31, 2019, Sekerova, Lada; Spacilova, Marketa; Vyskocilova, Eliska; Krupka, Jiri; Cerveny, Libor published an article.Computed Properties of 78-26-2 The title of the article was Acid catalyzed acetalization of aldehydes with diols resulting into the formation of fragrant cyclic acetals. And the article contained the following:

The influence of reaction conditions (amount and type of the catalyst, the reaction temperature, the type of the solvent) on the reaction course of the acetalization of aldehydes with diols was tested in this paper. The optimization of reaction conditions was performed on model reaction, acetalization of 2-methylpentanal by 2-methyl-2-propyl-1,3-propanediol leading to the formation of fragrant compound 2-(1-methylbutyl)-5-methyl-5-propyl-1,3-dioxane (Troenan). Para toluenesulfonic acid was used as an active homogeneous catalyst. It appeared to be advantageous not to use any solvent in the reaction. Using 0.3 wt% of the catalyst the almost total conversion of 2-methylpentanal was achieved after 240 min of reaction at room temperature while the selectivity to the desired product was about 98%. The optimized reaction conditions were applied to the preparation of four cyclic fragrant acetals (namely 2-hexyl-1,3-dioxolane, 2-hexyl-4-methyl-1,3-dioxolane, 2-benzyl-5-hydroxy-1,3-dioxane and 2-(1-methylbutyl)-5-methyl-5-propyl-1,3-dioxane) in larger scale; and these were sensory evaluated after purification step. Prepared heterogeneous catalysts, acid modified montmorillonite (MMT) K-10 (treated by H2SO4, HNO3, and HCl) were successful in the model reaction. The conversion of 2-methylpentanal over 90% was achieved using acid modified MMT after 300 min of reaction at room temperature, the selectivity to the desired product was about 98%. MMT/H2SO4 can be used in the model reaction four times without any change in the reaction course, what makes it promising for the further application. The experimental process involved the reaction of 2-Methyl-2-propylpropane-1,3-diol(cas: 78-26-2).Computed Properties of 78-26-2

The Article related to fragrant cyclic acetal preparation aldehyde diol acid catalysis, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Computed Properties of 78-26-2

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Alcohol – Wikipedia,
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Bretzler, Patrick; Huber, Michael; Nickl, Simon; Koehler, Klaus published an article in 2020, the title of the article was Hydrogenation of furfural by noble metal-free nickel modified tungsten carbide catalysts.Name: Pentane-1,5-diol And the article contains the following content:

Nickel-tungsten carbide catalysts convert furfural to high value products in a liquid phase catalytic reaction. The product distribution depends on the solvent and the Ni-W-ratio of the catalyst. In iso-Pr alc. a combination of Ni and WxC enables the opening of the furan ring to yield 1,2-pentanediol. Nickel accelerates the tungsten oxide reduction in the tungsten carbide catalyst synthesis and facilitates the carbon insertion. Nickel modified tungsten carbide is a promising, noble metal-free catalyst system for the upgrading of furfural based renewable resources. Its preparation is facilitated compared to unmodified tungsten carbide catalysts. The experimental process involved the reaction of Pentane-1,5-diol(cas: 111-29-5).Name: Pentane-1,5-diol

The Article related to furfural hydrogenation nickel modified tungsten carbide catalyst, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Name: Pentane-1,5-diol

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Alcohol – Wikipedia,
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On November 15, 2022, Li, Jianmei; Yang, Ruofeng; Xu, Shuguang; Zhou, Cuiqing; Xiao, Yuan; Hu, Changwei; Tsang, Daniel C. W. published an article.Recommanded Product: 473-81-4 The title of the article was Biomass-derived polyols valorization towards glycolic acid production with high atom-economy. And the article contained the following:

Taking advantage of the inherent structure in biomass for attractive chem. synthesis with high atom economy is vital for a sustainable future but remains a great challenge. Herein, we discovered a new route for glycolic acid (GcA) synthesis using various biomass-derived polyols as feedstock with an exceptionally high atom utilization (~93%). Up to ~90 C-mol% yield of GcA could be achieved, representing the highest value among the state-of-the-art biomass valorization strategies. Strongly certified by in situ exptl. tests and multi-scale theor. calculations, it was identified that dynamical accommodation of the flexible unsaturated dangling-like Cucus-O bond in Cu2O(111) to polyols drove electron transfer from polyols to Cucus, enabling the precise activation of C1-H and C2-C3 bonds. These contributions accomplished the complex cascade reactions in polyol transformation throughout chain-sugar as intermediate with notable conformation superiority, thus generating GcA selectively. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Recommanded Product: 473-81-4

The Article related to biomass polyol glycolic acid valorization mol dynamics simulation, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Recommanded Product: 473-81-4

Referemce:
Alcohol – Wikipedia,
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