Month: October 2022

Zhang, Xinxin;Wei, Dong;Li, Chunying;Wei, Li;Zhao, Min published 《Effectiveness of sodium sulfite as an electron acceptor for bioenhanced treatment of salt-containing water produced from ASP flooding》 in 2021. The article was appeared in 《Chemosphere》. They have made some progress in their research.Safety of 2-Hexyl-1-decanol The article mentions the following:

The wastewater produced from alk.-surfactant-polymer (ASP) flooding is a complex multiphase mixture that contains oil, polymers, surfactants and other pollutants and is thus a salt-containing industrial waste recalcitrant to treatments. Through laboratory tests, this study assessed the effectiveness of using sodium sulfite as an electron acceptor for a modified anaerobic baffled reactor (ABR) for removing oil, suspended solids, polymers and surfactants from salt-containing wastewater produced from ASP flooding. During the 90-day operation, the method established in this study successively removed 52.8%, 98.6%, 77.0%, 21.2% and 21.5% of the COD (COD), oil, suspended solids, polymers and surfactants, resp., from the wastewater. The changes in organic compounds in the reactor during the treatment were monitored through gas chromatog.-mass spectrometry (GC-MS), and the results showed that the established method was very effective in removing alkanes, alkenes, cycloalkanes, aromatic hydrocarbons and esters, and the organic macromols. in the wastewater were degraded to small mols. The main bacterial species and microbial communities in the reactor were characterized using mol. biol. techniques, and the results indicated that under the stress of high pH and salts, Halomonas sp. gradually dominated and played a major role in degrading hydrocarbons. The findings of this study can aid the development of a cost-effective biol. system to treat the water produced from ASP flooding. The experimental procedure involved many compounds, such as 2-Hexyl-1-decanol (cas: 2425-77-6) .

2-Hexyl-1-decanol(cas: 2425-77-6) is a fatty acid that is found in the essential oils of plants and has been shown to have fungicidal properties.Safety of 2-Hexyl-1-decanol It has also been shown to inhibit the growth of Candida glabrata when used as a cationic surfactant.

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Wang, Qiao;Xu, Zetao;Cao, Yiting;Chen, Yuanqing;Du, Xing;Yang, Yang;Wang, Zhihong published 《Two-dimensional ultrathin perforated Co₃O₄ nanosheets enhanced PMS-Activated selective oxidation of organic micropollutants in environmental remediation》. The research results were published in《Chemical Engineering Journal (Amsterdam, Netherlands)》 in 2022.Computed Properties of C15H16O The article conveys some information:

Here a two-dimensional (2D) ultrathin perforated Co₃O₄ nanosheet is rationally designed by a wet-chem. synthesis to activate peroxymonosulfate (PMS) for efficient selective oxidation And the physicochem. properties of catalyst were investigated by series of techniques. The Co₃O₄ nanosheets achieved a 98.0% degradation efficiency of bisphenol A (BPA) within 30 min, showing a 4 times higher kinetic constant (0.112 min^-1) and 5 times lower Co²⁺ leakage (6.5 μg/L), than com. Co₃O₄ microspheres. The great enhancement in catalytic performance was ascribed to the large surface area and pore diameter in porous 2D structure, as well as the strong electrostatic attraction with PMS. Moreover, the influence of several parameters such as initial pH, temperatures, humic acids and inorganic anions in the system on the remaval of BPA were systematically studied. Since sulfate radicals (SO·^–₄) were proved to be the primary reactive oxygen species by EPR measurements and quenching experiments, the PMS/Co₃O₄ nanosheets exhibits a highly selective oxidation on aromatics with electron donating groups (i.e., -OH and -CH₃), while a relatively low value for organics with electron-withdrawing groups (e.g., -NO₂ and -COOH). A high ionization potential threshold was determined to be greater than 9.39 eV, corresponding to a high oxidation ability to react with the organics Finally, possible degradation pathways were proposed based on twenty intermediate products determined from mass spectrometry. The experimental procedure involved many compounds, such as 4-(2-Phenylpropan-2-yl)phenol (cas: 599-64-4) .

4-(2-Phenylpropan-2-yl)phenol(cas:599-64-4) is a natural product found in Panax ginseng.Computed Properties of C15H16O 4-(2-Phenylpropan-2-yl)phenol is a useful reagent for preparing and characterizing aromatic polyphosphonates as high refractive index polymers.

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Szczepanska, Katarzyna;Karcz, Tadeusz;Mogilski, Szczepan;Siwek, Agata;Kuder, Kamil J.;Latacz, Gniewomir;Kubacka, Monika;Hagenow, Stefanie;Lubelska, Annamaria;Olejarz, Agnieszka;Kotanska, Magdalena;Sadek, Bassem;Stark, Holger;Kiec-Kononowicz, Katarzyna published 《Synthesis and biological activity of novel tert-butyl and tert-pentylphenoxyalkyl piperazine derivatives as histamine H₃R ligands》. The research results were published in《European Journal of Medicinal Chemistry》 in 2018.Computed Properties of C11H16O The article conveys some information:

A series of twenty four new tert-Bu and tert-pentyl phenoxyalkylamine derivatives I [R = tetrahydrofuran-2-yl, pyridin-2-yl, pyridin-3-yl, pyridin-4-yl, pyrimidin-2-yl, pyrazin-2-yl; R¹ = Me, Et; Q = (CH₂)n, n = 1,2] was synthesized. Compounds with three to four carbon atoms alkyl chain spacer were evaluated for their binding properties at human histamine H₃ receptor (hH₃R). The highest affinities were observed for compounds I [R = pyridin-4-yl, R¹ = Me, Q = (CH₂)n, n = 1; R = pyridin-4-yl, R¹ = Me, n = 2; R = pyridin-4-yl, R¹ = Et, Q = (CH₂)n, n = 1; R = pyridin-4-yl, R¹ = Et, Q = (CH₂)n, n = 2] (K_i=16.0-120nM). As it was showed in docking studies, those specific heteroaromatic 4-N piperazine substituents might interact with one of the key receptor interacting amino acids. Moreover, the most promising compounds exhibited anticonvulsant activity in the maximal electroshock-induced seizure (MES) model in mice. Furthermore, the blood-brain barrier penetration, the functional H₃R antagonist potency as well as the pro-cognitive properties in the passive avoidance test were demonstrated for compound I [R = pyridin-4-yl, R¹ = Me, Q = (CH₂)n, n = 2]. In order to estimate drug-likeness of compound I [R = pyridin-4-yl, R¹ = Me, Q = (CH₂)n, n = 2] in silico and exptl. evaluation of metabolic stability in human liver microsomes was performed. In addition, paying attention to the results obtained within this study, the 4-pyridyl-piperazino moiety was established as a new bioisosteric piperidine replacement in H₃R ligands. The experimental procedure involved many compounds, such as 4-tert-Amylphenol (cas: 80-46-6) .

4-tert-acylphenol (cas:80-46-6) contains hydroxyl group. Owing to the presence of the polar OH alcohols are more water-soluble than simple hydrocarbons. Methanol, ethanol, and propanol are miscible in water. Butanol, with a four-carbon chain, is moderately soluble.Computed Properties of C11H16O

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Kim, Da-Som;Kim, Hoe Sung;Lee, Jookyeong;Pan, Jeong Hoon;Kim, Young Jun;Kim, Jae Kyeom;Woo, Seongmin;Shin, Eui-Cheol published 《Wasabia koreana Nakai: a preliminary study on nutrients and chemical compounds that may impact sensory properties》. The research results were published in《Molecules》 in 2018.Category: alcohols-buliding-blocks The article conveys some information:

In this study, the nutritional, functional, and chem. measurements of sensory attributes of different parts of wasabi, namely, leaf, petiole, and rhizome, were investigated. Proximate composition anal. showed the presence of high amounts of carbohydrates in the rhizome and amino acid composition anal. confirmed high proportions of glutamic acid and aspartic acid in all three parts. While proximate composition showed low lipid content in wasabi, ω-3 fatty acids accounted for a high proportion (>44%) of the total lipids. Wasabi leaves had high vitamin C and total phenolic contents, and thus demonstrated antioxidant capacity. Allyl isothiocyanate, which gives wasabi its characteristic pungent taste, was identified by gas chromatog./mass spectrometry and an electronic nose. On an electronic tongue, wasabi leaves showed compounds associated with sourness and saltiness while the petiole had high content of compounds associated with sweetness and bitterness. This study provides basic data for the utilization of wasabi parts as food materials based on their nutritional, functional, and chem. measure of sensory attributes. To complete the study, the researchers used 2,5-Dimethyl-2,5-hexanediol (cas: 110-03-2) .

2,5-Dimethyl-2,5-hexanediol(cas:110-03-2) was used in the synthesis of six- and seven-membered heterocyclic boron compounds containing intramolecular N-B bond.Category: alcohols-buliding-blocks

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Liu, Kexin;Zhang, Yuxiu;Xu, Weichao published 《Bioaugmentation of quinoline-degrading bacteria for coking wastewater treatment: performance and microbial community analysis》 in 2022. The article was appeared in 《Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances & Environmental Engineering》. They have made some progress in their research.Name: 2,2-Methylenebis(6-tert-butyl-p-cresol) The article mentions the following:

Ochrobactrum sp.XKL1, previously found to have the ability to efficiently degrade quinoline, was bioaugmented into a lab-scale A/O/O system to treat real coking wastewater. During the bioaugmentation stage, the removal of quinoline and pyridine of the O1 tank could be enhanced by 9.88% and 7.96%, resp. High-throughput sequencing anal. indicated that the addition of XKL1 could significantly affect the alteration of microbial community structure in the sludge. In addition, the relative abundance of Ochrobactrum has demonstrated a trend of increasing first followed by decreasing with the highest abundance of 7.87% attained on the 94th day. The bioaugmentation effects lasted for about 14 days after the strains was inoculated into the reactor. Although a decrease in the relative abundance of XKL1 was observed for a rather short period of time, the bioaugmented A/O/O system has been proven to be more effective in the removal of organic pollutants than the control. Hence, the results of this study indicated that the bioaugmentation with XKL1 is a feasible operational strategy that would be able to enhance the removal of NHCs in the treatment of coking wastewater with complex composition and high organic concentrations And 2,2-Methylenebis(6-tert-butyl-p-cresol) (cas: 119-47-1) was used in the research process.

Name: 2,2-Methylenebis(6-tert-butyl-p-cresol)2,2′-Methylenebis(4-methyl-6-tert-butylphenol)(CAS: 119-47-1) is a natural product found in Streptomyces and Aspergillus fumigatus .

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Cruz, Rodrigo A. S.;Botas, Gisele da S.;Fernandes, Caio P.;Santos, Marcelo G.;Rocha, Leandro published 《Chemical Constituents of Essential Oils from Leaves of Two Erythroxylum Species》. The research results were published in《Chemistry of Natural Compounds》 in 2018.Quality Control of 3,7-Dimethyloctan-3-ol The article conveys some information:

In this context, the aim of the present study was to describe for the first time the chem. composition of essential oils obtained from leaves of these two Erythroxylum species. The present study contributes to the phytochem. studies of this genus, especially concerning volatile substances. Moreover, these are the first chem. investigations performed with Erythroxylum ovalifolium and Erythroxylum subsessile. The experimental procedure involved many compounds, such as 3,7-Dimethyloctan-3-ol (cas: 78-69-3) .

3,7-Dimethyloctan-3-ol(cas:78-69-3) is a fatty alcohol that is 3-octanol substituted by methyl groups at positions 3 and 7.Quality Control of 3,7-Dimethyloctan-3-ol Metabolite observed in cancer metabolism. It has a role as a human metabolite.

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Safety of 4-tert-Octylphenol《Electrospun alginate mats embedding silver nanoparticles with bioactive properties》 was published in 2022. The authors were Alloisio, Marina;Dodero, Andrea;Alberti, Stefano;Vicini, Silvia;Castellano, Maila, and the article was included in《International Journal of Biological Macromolecules》. The author mentioned the following in the article:

Polysaccharide-based composites embedding silver nanoparticles (AgNPs) represent a promising alternative to common antimicrobial materials because of the effective, broad-spectrum biocidal properties of AgNPs combined with the biocompatibility and environmental safety of the naturally occurring polymeric component. In this work, AgNPs stabilized with alginate chains (Alg@AgNPs) were successfully synthesized in situ within the polysaccharide solution through a wet chem. approach carried out at different concentrations of the silver salt precursor. Once obtained, the aqueous suspensions were electrospun to prepare non-woven membranes, showing a homogeneous nanostructured texture (with fiber diameter between 100 and 150 nm), which was found to be influenced by the size (between 20 and 35 nm) of the embedded metal nanoparticles. The biocidal potential of the nanocomposite mats was preliminarily tested against Gram-neg. E. coli. The results showed that the antimicrobial response of the investigated samples occurred within a day of incubation and can be observed for AgNPs content in the polysaccharide fibers far below the nanomolar regime. The experimental procedure involved many compounds, such as 4-tert-Octylphenol (cas: 140-66-9) .

4-tert-Octylphenol(cas: 140-66-9) has been used as a reference standard for the determination of the analyte in water samples using ultra-high-performance liquid chromatography/tandem mass spectrometry (UHPLC/MS/MS).Safety of 4-tert-Octylphenol

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Related Products of 224434-01-9《Enantioselective Cu(I)-Catalyzed Cycloaddition of Prochiral Diazides with Terminal or 1-Iodoalkynes》 was published in 2020. The authors were Wang, Cai;Zhu, Ren-Yi;Liao, Kui;Zhou, Feng;Zhou, Jian, and the article was included in《Organic Letters》. The author mentioned the following in the article:

We report an unprecedented highly enantioselective desym. Cu(I)-catalyzed 1,3-dipolar cycloaddition of diazides with terminal alkynes and 1-iodoalkynes, affording tertiary alcs. bearing a 1,2,3-triazole moiety in high yield and excellent ee value. PYBOX ligands with a C4 shielding group once again show the promising ability to achieve higher enantioselectivity.(S)-2-Amino-2-(4-fluorophenyl)ethanol (cas: 224434-01-9) were involved in the experimental procedure.

(S) – 2-amino-2 – (4-fluorophenyl) ethanol (cas: 224434-01-9) has the characteristics of alcohol. In general, the hydroxyl group makes alcohols polar. Those groups can form hydrogen bonds to one another and to most other compounds. Related Products of 224434-01-9

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Amsallem, Dana;Bedi, Anjan;Tassinari, Francesco;Gidron, Ori published 《Relation between Morphology and Chiroptical Properties in Chiral Conducting Polymer Films: A Case Study in Chiral PEDOT》 in 2020. The article was appeared in 《Macromolecules (Washington, DC, United States)》. They have made some progress in their research.Category: alcohols-buliding-blocks The article mentions the following:

The electronic properties of conducting polymers are influenced by their micro- and macrostructural orders, which can be tailored by substituent modification. However, while the effect of substituents on conducting polymers is extensively investigated, chiral substituents are far less studied. Furthermore, many chiral conducting polymers have regioirregular structures, which result in polymer films with inferior properties. In this work, we apply electronic CD (ECD) spectroscopy to study the morphol. changes to the chiral polymers under different polymerization conditions. For this purpose, we investigated 3,4-ethylenedioxythiophene (EDOT) derivatives having two stereogenic centers on each monomer and bearing Me or Ph side groups (dimethyl-EDOT and diphenyl-EDOT, resp.). Polymerizing the enantiomerically pure monomers produces regioregular and stereoregular dimethyl-PEDOT and diphenyl-PEDOT, resp. The effect of the electrolyte and solvent on polymer film morphol. was studied using SEM and ECD, showing a correlation between the polymer’s morphol. and the chiroptical properties of its films. We found that, for diphenyl-PEDOT, the combination of perchlorate anion electrolyte and acetonitrile solvent resulted in a unique morphol. characterized by significant intermol. interactions. These interactions were clearly observable in the ECD spectra in the form of exciton couplings, whose presence was supported by TD-DFT calculations A small enantiomeric excess was sufficient to induce very intense ECD signals, demonstrating chiral amplification in electropolymerized films. To complete the study, the researchers used rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) .

rel-(1R,2S)-1,2-Diphenylethane-1,2-diol(cas: 579-43-1 Category: alcohols-buliding-blocks) has been used in the preparation of trans-methyl meso-hydrobenzoin phosphite.

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Formula: C8H18O2In 2021, Tailor, Sanita B.;Manzotti, Mattia;Smith, Gavin J.;Davis, Sean A.;Bedford, Robin B. published 《Cobalt-Catalyzed Coupling of Aryl Chlorides with Aryl Boron Esters Activated by Alkoxides》. 《ACS Catalysis》published the findings. The article contains the following contents:

The cobalt-catalyzed Suzuki biaryl cross-coupling of aryl chloride substrates with aryl boron reagents, activated with more commonly used bases, remained a significant unmet challenge in the race to replace platinum group metal catalysts with Earth-abundant metal alternatives. This highly desirable process can be realized using alkoxide bases, provided the right counterion is employed, strict stoichiometric control of the base is maintained with respect to the aryl boron reagent, and the correct boron ester is selected. Potassium tert-butoxide works well, but any excess of the base first inhibits and then poisons the catalyst. Lithium tert-butoxide performs very poorly, while even catalytic amounts of lithium additives also poison the catalyst. Meanwhile, a neopentane diol-based boron ester is required for best performance. As well as delivering this sought-after transformation, a detailed mechanistic and computational investigations to probe the possible mechanism of the reaction has been discussed and explains the unexpected exptl. observations. To complete the study, the researchers used 2,5-Dimethyl-2,5-hexanediol (cas: 110-03-2) .

2,5-Dimethyl-2,5-hexanediol(cas:110-03-2) on heteropoly acid catalyzed dehydration yields cyclic ethers via stereospecific intramolecular SN2 mechanism. It reacts with nitriles in concentrated sulfuric acid to yield Δ1-pyrrolines.Formula: C8H18O2

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