Tag: M.W=100-150

Chaudhari, Chandan; Sato, Katsutoshi; Ogura, Yuta; Miayahara, Shin-Ichiro; Nagaoka, Katsutoshi published the artcile< Pr2O3 Supported Nano-layered Ruthenium Catalyzed Acceptorless Dehydrogenative Synthesis of 2-Substituted Quinolines and 1,8-Naphthyridines from 2-Aminoaryl Alcohols and Ketones>, Quality Control of 5344-90-1, the main research area is quinoline naphthyridine preparation; aminoaryl alc ketone dehydrogenation ruthenium nanocatalyst.

Pr2O3 supported Ru nanolayers and Ru nanoparticles catalysts were examined for the synthesis of quinolines I (R = Me, Ph, pyridin-3-yl, etc.; R1 = H, Me; RR1 = -(CH2)4-). The Ru nanolayer was most active catalyst and showed a broad substrate scope. Structure-activity relationship demonstrated that the metallic state and morphol. of Ru as well as the basic site of Pr2O3 were indispensable factors of this catalytic system.

ChemCatChem published new progress about Amino alcohols Role: RCT (Reactant), RACT (Reactant or Reagent) (aryl). 5344-90-1 belongs to class alcohols-buliding-blocks, and the molecular formula is C7H9NO, Quality Control of 5344-90-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Guan, Ruqun; Jing, Lingyan; Zhang, Xiaoming; Chen, Shuai; Xue, Nan; Yang, Hengquan published the artcile< Microspherical nitrogen-doped carbon nanotube assembly derived from Pickering droplets>, SDS of cas: 6850-39-1, the main research area is microspherical nitrogen carbon nanotube Pickering droplet.

Carbon nanotube assemblies with controlled morphol. and tailored architecture offer great potentials for myriad applications, but strategies for their production have remained a significant challenge. Here, we proposed a novel and simple microconfined-annealing strategy, in which a Pickering microdroplet patterned method and unique pyrolysis-stimulated-transformation processes were coupled unprecedentedly, for the fabrication of spherical nitrogen-doped carbon nanotube assemblies (NCNTA). Based on this strategy, the as-prepared superstructures not only retained the micrometer-size and well-defined morphol. of the initial Pickering droplets, but also derived a hierarchical pomegranate-like structure where numerous interconnected NCNT particles were encapsulated by a carbon crust. More importantly, the interior architectures were shown to be manipulated through controlling synthesized parameters. Owing to the unique structure and composition of these assemblies, the yielded superstructures exhibited excellent performance and good recyclability in heterogeneous catalysis applications. This synthetic strategy provides new routes to access other micro- or macroscopic materials with novel structures and paves the way to expand their potential applications.

Carbon published new progress about Aminoplasts Role: CAT (Catalyst Use), PEP (Physical, Engineering or Chemical Process), SPN (Synthetic Preparation), USES (Uses), PROC (Process), PREP (Preparation). 6850-39-1 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H13NO, SDS of cas: 6850-39-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wakayama, Takanari; Ito, Yuki; Sakai, Kiyoshi; Miyake, Mio; Shibata, Eiji; Ohno, Hiroyuki; Kamijima, Michihiro published the artcile< Comprehensive review of 2-ethyl-1-hexanol as an indoor air pollutant>, Application In Synthesis of 104-76-7, the main research area is review indoor air pollutant; 2-ethyl-1-hexanol; emission mechanism; indoor air pollution; indoor concentration; sick building syndrome; volatile organic compounds.

A review. Objectives : 2-Ethyl-1-hexanol (2EH), a fragrance ingredient and a raw material for the production of plasticizer di(2-ethylhexyl) phthalate, is responsible for sick building syndrome (SBS). This review aims to clarify the 2EH characteristics as an indoor air pollutant such as indoor air concentration, emission mechanism, toxicity, and clin. effects. Methods : Scientific publications in English that has been made available on PubMed as of June 2018 and ad hoc publications in regional languages were reviewed. Results : Inhalation exposure to 2EH caused mucous membrane irritation in the eyes, nose, and throat in exptl. animals. Studies in human volunteers revealed an increase in olfactory irritation and eye discomfort. There has been increasing evidence of 2EH being present in indoor air in buildings. The primary sources of 2EH emissions are not building materials themselves, but instead the hydrolysis of plasticizers and flooring adhesives. In particular, compounds like di(2-ethylhexyl) phthalate present in polyvinyl chloride flooring materials are hydrolyzed upon contact with alk. moisture-containing concrete floors. That being said, it may be observed that indoor concentrations of 2EH increased every year during summer. Conclusions : Unlike other volatile organic compounds that cause SBS, 2EH can be retained in indoor air for long durations, increasing the likelihood of causing undesirable health effects in building occupants exposed to it. As a precautionary measure, it is important to use flooring materials that do not emit 2EH by hydrolysis, or to dry concrete before covering with flooring materials.

Journal of Occupational Health published new progress about Air. 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Application In Synthesis of 104-76-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Castagnoli, Emmanuelle; Backlund, Peter; Talvitie, Oskari; Tuomi, Tapani; Valtanen, Arja; Mikkola, Raimo; Hovi, Hanna; Leino, Katri; Kurnitski, Jarek; Salonen, Heidi published the artcile< Emissions of DEHP-free PVC flooring>, Electric Literature of 104-76-7, the main research area is PVC C9 alc volatile organic compound indoor air pollution; 2-ethylhexanol; C9-alcohol; PVC; TVOC; flooring; phthalates.

Degrading 2-ethylhexyl-containing PVC floorings (eg DEHP-PVC floorings) and adhesives emit 2-ethylhexanol (2-EH) in the indoor air. The danger of flooring degradation comes from exposing occupants to harmful phthalates plasticisers (eg DEHP), but not from 2-EH as such. Since the EU banned the use of phthalates in sensitive applications, the market is shifting to use DEHP-free and alternative types of plasticisers in PVC products. However, data on emissions from DEHP-free PVC floorings are scarce. This study aimed at assessing the surface and bulk emissions of two DEHP-free PVC floorings over three years. The floorings were glued on the screed layer of concrete casts at 75%, 85%, and 95% RH. The volatile organic compounds (VOCs) were actively sampled using FLEC (surface emissions) and micro-chamber/thermal extractor (μ-CTE, bulk emissions) onto Tenax TA adsorbents and analyzed with TD-GC-MS. 2-EH, C9-alcs., and total volatile organic compound (TVOC) emissions are reported. Emissions at 75% and 85% RH were similar. As expected, the highest emissions occurred at 95% RH. 2-EH emissions originated from the adhesive. Because the two DEHP-free floorings tested emitted C9-alcs. at all tested RH, it makes the detection of flooring degradation harder, particularly if the adhesive used does not emit 2-EH.

Indoor Air published new progress about Alcohols, C9 Role: POL (Pollutant), OCCU (Occurrence). 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Electric Literature of 104-76-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Tagami, Takuma; Aoki, Yuma; Kawamura, Shintaro; Sodeoka, Mikiko published the artcile< 1,2-Bis-perfluoroalkylations of alkenes and alkynes with perfluorocarboxylic anhydrides via the formation of perfluoroalkylcopper intermediates>, Application In Synthesis of 10602-04-7, the main research area is bis perfluoroalkyl preparation; alkene alkyne perfluorocarboxylic anhydride perfluoroalkylation copper mediator perfluoroalkylcopper intermediate.

A novel, Cu-mediated protocol toward the 1,2-bis-perfluoroalkyaltion of alkenes/alkynes was developed. The method proceeded with perfluorocarboxylic anhydrides as inexpensive and readily available perfluoroalkyl sources. Diacyl peroxide was generated in situ from the perfluorocarboxylic anhydrides and H2O2. The key step in this reaction is the formation of a stable perfluoroalkylcopper intermediate that is achieved with the aid of a bipyridyl ligand. Subsequent reaction of the intermediate with perfluoroalkyl-containing alkyl or vinyl radicals affords the desired products.

Organic & Biomolecular Chemistry published new progress about Alkenes Role: RCT (Reactant), RACT (Reactant or Reagent). 10602-04-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C9H8O, Application In Synthesis of 10602-04-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ozyilmaz, Ali Tuncay; Ozgen, Begum; Celik, Cumali published the artcile< Poly(o-aminobenzyl alcohol) films with and without organic compound on AISI 316 surface; synthesis and the corrosion performances>, Synthetic Route of 5344-90-1, the main research area is aminobenzyl alc organic compound corrosion performance.

In this work, we obtained the anticorrosive properties of polymer films (SS/PABA and SS/PABAORG) synthesized on stainless steel surface by adding an organic substance to aniline derived oaminobenzyl alc. monomer synthesis medium. Firstly, we prepared the polymer coating bath by dissolving 0.15 M o -aminobenzyl alc. monomer in the electrolyte solvent containing acetonitrile and 0.15 M LiClO4. From this bath, poly (o-aminobenzyl alc.) (PABA) film was synthesized in 30 segments by cyclic voltammetry (CV) technique at a scanning rate of 50 mV/s at a potential range of -0.20/1.80 V on the AISI 316 (SS) working electrode in contrast to the platinum electrode. For the synthesis of organic structure doped polymer film (PABA-ORG), we repeated the same synthesis process by dissolving C21H27NO2(k) (ORG) at low concentration in the same bath. We investigated the corrosion performances of bare SS, SS/PABA, and SS/PABA-ORG substrates, using open circuit potential – time, anodic polarization, and AC impedance techniques in the solution of corrosion study. As a result, we observed that the organic additive added to the synthesis medium caused changes in the synthesis behavior of PABA. Corrosion performance tests showed that PABA and PABA-ORG films increased the corrosion protection performance of the SS electrode, and we observed a reduction of the corrosion rate of the SS electrode.

Journal of the Turkish Chemical Society, Section A: Chemistry published new progress about Anodic polarization. 5344-90-1 belongs to class alcohols-buliding-blocks, and the molecular formula is C7H9NO, Synthetic Route of 5344-90-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Dewidar, Assem A.; Sorial, George A. published the artcile< Effect of surfactin on removal of semi-volatile organic compound: Emphasis on enhanced biofiltration performance>, Recommanded Product: 2-Ethylhexan-1-ol, the main research area is surfactin semi volatile organic compound biofiltration; Biosurfactant; Biotrickling filter; Fungi; Semi-volatile organic compound (SVOC); Surfactin.

The performance of a lab-scale biotrickling filter inoculated with a mixed fungal consortium was investigated for the simultaneous abatement of 2-ethylhexanol; a hydrophobic semi-volatile organic compound, and propylene glycol monomethyl ether. The biotrickling filter performance was investigated in the presence of lipopeptide-type biosurfactant, surfactin. The effect of surfactin on the removal efficiency and elimination capacity was examined at stretched inlet loading rates: 1.04 to 15.7 and 3.2-48 g m-3 h-1 of propylene glycol monomethyl ether and 2-ethylhexanol, resp. Seeding the biotrickling filter with 50 mg L-1 of surfactin maintained high and consistent removal efficiencies of propylene glycol monomethyl ether and 2-ethylhexanol up to loading rates of 15.7 and 32 g m-3 h-1, with removal efficiencies of 98.5 and 99%, resp. Once the loading rate of 2-ethylhexanol increased to 48 g m-3 h-1, a substrate inhibition was observed, accompanied by a sudden decrease in removal efficiency from 99.2 to 62.3%. At the same loading rates, the biotrickling filter performance was improved by reseeding 100 mg L-1 of surfactin, hence, reinstated the removal efficiency of 2-ethylhexanol to 92.7% and achieving a maximum elimination capacity of 44.5 g m-3 h-1. This enhanced semi-volatile organic compounduptake rate was further confirmed by a considerable increase in reaction rate constant from 0.005 to 0.017 s-1. A batch study was also conducted at the end of the exptl. run to better understand the correlation between surfactin concentrations and the time-dependent partition coefficient of 2-ethylhexanol. Biofilm microbial community structure revealed relative abundancy of 72 and 28% of Trichoderma asperellum and Fusarium solani, resp. The findings of this study show for the first time that the removal of a semi-volatile organic compd such as 2-ethylhexanol is feasible in the presence of surfactin and hence improving the bioavailability of hydrophobic semi-volatile organic compound

Environmental Research published new progress about Bioavailability. 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Recommanded Product: 2-Ethylhexan-1-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Sankar, Velayudham; Kathiresan, Murugavel; Sivakumar, Bitragunta; Mannathan, Subramaniyan published the artcile< Zinc-Catalyzed N-Alkylation of Aromatic Amines with Alcohols: A Ligand-Free Approach>, Product Details of C7H9NO, the main research area is alkyl amine preparation; amine alc alkylation zinc catalyst.

An efficient zinc-catalyzed N-alkylation reaction of aromatic amines was achieved using aliphatic, aromatic and heteroaromatic alcs. as the alkylating reagent. A variety of aniline derivatives, including heteroaromatic amines, underwent the N-alkylation reaction and furnished N-alkyl amines in good to excellent yields. The application of reaction was also further demonstrated by the synthesis of 2-phenylquinoline from acetophenone and 2-aminobenzyl alc. Deuterium labeling experiments showed that the reaction proceeded via a borrowing hydrogen process.

Advanced Synthesis & Catalysis published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 5344-90-1 belongs to class alcohols-buliding-blocks, and the molecular formula is C7H9NO, Product Details of C7H9NO.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Melchiorre, Massimo; Amendola, Raffaele; Benessere, Vincenzo; Cucciolito, Maria E.; Ruffo, Francesco; Esposito, Roberto published the artcile< Solvent-free transesterification of methyl levulinate and esterification of levulinic acid catalyzed by a homogeneous iron(III) dimer complex>, HPLC of Formula: 104-76-7, the main research area is transesterification methyl levulinate esterification levulinic acid iron complex catalyst.

Levulinic acid esters MeC(O)CH2CH2CO2R (LAE) are emerging bio-based chems. used as solvents, additives and plasticizers. In this work a variety of levulinates (R= Bu, n-hexyl, n-octyl, 2-ethylhexyl, geranyl, 2-ethoxyethyl, benzyl, 2-octyl, cyclohexyl, menthyl) is obtained from the solvent-free transesterification of Me levulinate (ML) and esterification of levulinic acid (LA), catalyzed by a dimeric complex of iron(III). The results are competitive with the few related reports of literature mainly based on heterogeneous catalysis. This first systematic study based on a homogeneous catalytic system therefore represents a significant extension within the field of biomass valorization.

Molecular Catalysis published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, HPLC of Formula: 104-76-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Han, Xiaoxu; An, Hualiang; Zhao, Xinqiang; Wang, Yanji published the artcile< Influence of acid-base properties on the catalytic performance of Ni/hydroxyapatite in n-butanol Guerbet condensation>, Category: alcohols-buliding-blocks, the main research area is acid base catalytic nickel hydroxyapatite butanol Guerbet condensation.

A series of supported Ni-based multifunctional catalysts were prepared and their catalytic performances for n-butanol Guerbet condensation reaction were evaluated. Ni/hydroxyapatite (HAP) shows the best catalytic performance: a selectivity of 2-ethylhexanol reaches 52.4% at an n-butanol conversion of 29.6% at 230°C. The activity evaluation results indicate that Ni/HAP with both high-d. of acid sites and high-d. of base sites have higher catalytic performance. Furthermore, the importance of acid-base synergistic catalysis was proved by evaluating the change of the catalytic performance of Ni/HAP catalyst after poisoning the acidic or basic sites using an acid or a base probe mol.

Catalysis Communications published new progress about Catalyst poisoning. 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts