Category: 111-87-5

Chakraborty, Priyanka published the artcileα-Alkylation of Ketones with Secondary Alcohols Catalyzed by Well-Defined Cp*CoIII-Complexes, Name: n-Octanol, the main research area is alkyl aryl ketone preparation; ketone secondary alc alkylation cobalt catalyst; alkylation; cobalt; ketones; secondary alcohols; α-alkylation.

Herein a well-defined, high-valence cobalt(III)-catalyst was applied for successful α-alkylation of ketones RC(O)CH3 (R = pentamethylphenyl, Ph, naphthalen-2-yl, etc.) and 1,2,3,4-tetrahydronaphthalen-1-one with secondary alcs. R1OH (R1 = 1-phenylethyl, cyclopentyl, octan-2-yl, etc.). A wide-variety of secondary alcs., which include cyclic, acyclic, sym., and unsym. compounds, was employed as alkylating agents to produce β-alkyl aryl ketones RC(O)CH2R1 and 2-(1-phenylethyl)-3,4-dihydronaphthalen-1(2H)-one.

ChemSusChem published new progress about Alkylation. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Name: n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kolmar, Johannes F. published the artcileImproving Product Specificity of Whole-Cell Alkane Oxidation in Nonconventional Media: A Multivariate Analysis Approach, COA of Formula: C8H18O, the main research area is Tergitol octanol; alkane monooxygenases; high-throughput; multivariate data analyses; nonconventional media; whole-cell bio-oxidation.

Two-liquid-phase reaction media have long been used in bioconversions to supply or remove hydrophobic organic reaction substrates and products to reduce inhibitory and toxic effects on biocatalysts. In case of the terminal oxyfunctionalization of linear alkanes by the AlkBGT monooxygenase the excess alkane substrate is often used as a second phase to extract the alc., aldehyde, and acid products. However, the selection of other carrier phases or surfactants is complex due to a large number of parameters that are involved, such as biocompatibility, substrate bioavailability, and product extraction selectivity. This study combines systematic high-throughput screening with chemometrics to correlate physicochem. parameters of a range of cosolvents to product specificity and yield using a multivariate regression model. Partial least-squares regression shows that the defining factor for product specificity is the solubility properties of the reaction substrate and product in the cosolvent, as measured by Hansen solubility parameters. Thus the polarity of cosolvents determines the accumulation of either alc. or acid products. Whereas usually the acid product accumulates during the reaction, by choosing a more polar cosolvent the 1-alc. product can be accumulated. Especially with Tergitol as a cosolvent, a 3.2-fold improvement in the 1-octanol yield to 18.3 mmol L-1 is achieved relative to the control reaction without cosolvents.

Biotechnology Journal published new progress about Statistical optimization. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, COA of Formula: C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Jung, Mun Yhung published the artcileAn unattended HS-SPME-GC-MS/MS combined with a novel sample preparation strategy for the reliable quantitation of C8 volatiles in mushrooms: A sample preparation strategy to fully control the volatile emission, Recommanded Product: n-Octanol, the main research area is mushroom volatile HSSPMEGCMS freeze drying rehydration; Automation; Beech; Button; C8 volatiles; Gas chromatography; Headspace-solid phasemicroextraction; Mass spectrometry; Mushrooms; Quantitative analysis; Shiitake.

Eight carbon (C8) compounds are the key characteristic flavors of mushrooms. The quant. anal. of the volatiles in mushrooms is challenging especially with the unattended HS-SPME-GC-MS. An unattended HS-SPME-GC-MS/MS in combination with novel sample preparation of the complete control of volatile emissions was developed for the quantitation of the C8 volatiles in mushrooms. The sample preparation strategy was composed of freeze-drying, rehydration, and the addition of a 15% citric acid solution With this strategy, the volatile emission from mushroom was fully controlled at a certain time point. This method was found to be highly reliable, sensitive, precise, and accurate. This method was successfully applied to measure the contents of the C8 volatiles in the beech, button, and shiitake mushrooms. 1-Octene-3-ol was the most predominant compound in the mushrooms, representing 62.4, 69.0, and 89.2% of the total C8 volatiles in the beech, button, and shiitake mushrooms, resp.

Food Chemistry published new progress about Adsorption. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Recommanded Product: n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Cabal, Luis Felipe Rodriguez published the artcileDetermination of ring-substituted amphetamines through automated online hollow fiber liquid-phase microextraction-liquid chromatography, Application of n-Octanol, the main research area is forensic ring substituted amphetamine hollow liquid microextraction chromatog; Automation; Liquid chromatography; Mass spectrometry; Microextraction; Sample preparation.

The present paper describes an original method for the online preconcentration and anal. of ring-substituted amphetamines in urine samples, used on the integration of robot-assisted hollow fiber liquid-phase microextraction (HF-LPME), high-performance liquid chromatog. (HPLC), and fluorescence detection (FLD). A laboratory-made autosampler, actuating a 100-μL syringe and equipped with a three-way solenoid microvalve, allowed the acceptor phase to flow through and be withdrawn from the lumen fiber, enabling the automated online transference of the enriched acceptor phase for chromatog. anal., through a six-port switching valve. The developed online HF-LPME-LC/FLD method demonstrated high anal. throughput and confidence, facilitating the efficient extraction and determination of the target analytes, with minimal solvent consumption and sample manipulation, in a straightforward way. Sample cleanup, analyte uptake, and anal. were carried out in 14.5 min. Under optimal conditions, automated online HF-LPME showed excellent linearity, precision, and trueness, obtaining intraday RSDs between 2.9 and 9.2% (n = 6) and interday RSDs between 5.3 and 9.3% (n = 6). Enrichment factors (EFs) ranged between 14.2 and 15.7, extraction recoveries (ERs) ranged between 17.7 and 19.5%, and the limits of detection (S/N = 3) were 2.0, 3.0, and 3.0 μg L-1 for MDA, MDMA, and MDEA, resp. The method proved to be an effortless, rapid, reliable, and environment-friendly approach for the determination of drug abuse in urine samples.

Analytical and Bioanalytical Chemistry published new progress about Automated analysis. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Application of n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Fellechner, Oliver published the artcileLong-Chain Alcohol-Modified Micellar Systems and Their Application in a Continuous Extraction Process, Quality Control of 111-87-5, the main research area is long chain alc micellar extraction micelle surfactant purification.

The integration of an in situ extraction into biocatalytic processes is often limited by the toxicity of organic solvents. Therefore, it is desirable to use water-based extraction systems (for example, aqueous micellar two-phase systems). They can be used, for instance, for the extraction of valuable products from microalgae cultures. Recently, the nonionic surfactant ROKAnol NL5 was identified as a suitable surfactant for this purpose, since it forms an upper micellar phase, enabling an easy separation of whole-cell biocatalysts. However, its application at temperatures below 45 °C is limited by unstable phase boundaries, whereas the maximal temperature to ensure the vitality of the most microalgae cultures is ∼40 °C. To overcome this problem, the addition of long-chain alcs. to the surfactant-water mixture during extraction is suggested in this work. Using 1-hexanol, a continuous extraction process with the model solute trans-cinnamic acid at 40 °C in a stirred column could be realized. The results of a new suggested water/ROKAnol NL5/1-hexanol system at 40 °C (extraction yield, Ycont = 97.67% ± 0.14%; enrichment factor, log10TCA = 2.42 ± 0.03; number of theor. stages, Ntheo = 4.45 ± 0.16) are comparable to those of the water/ROKAnol NL5 system at 45 °C (Ycont = 99.26% ± 0.24%, log10TCA = 2.60 ± 0.10, Ntheo = 5.88 ± 0.67), ensuring, however, no damage of microalgae.

Industrial & Engineering Chemistry Research published new progress about Micellar extraction. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Quality Control of 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Song, Young-Kyu published the artcileRepeatable Self-Healing of a Protective Coating Based on Vegetable-Oil-Loaded Microcapsules, SDS of cas: 111-87-5, the main research area is vegetable oil loaded microcapsule self healing protective coating; microcapsule; olive oil; protective coating; repeatable self-healing; soybean oil; viscoelasticity.

Generally, microcapsule-based self-healing materials have the limitation of single local self-healing. A few studies have reported repeatable self-healing in these microcapsular materials, but there is a challenge to develop multi-cycle self-healing materials that have the advantages of easier preparation and a more efficient operation. In this work, a mixture of two vegetable oils, soybean and olive oil, was used as a healing agent. The atm. oxygen-induced reaction behavior (in the presence of a catalyst) was investigated for various compositions of the vegetable oil mixtures; IR spectroscopy, recovery testing, and viscoelasticity measurement were performed to find an optimum composition of the healing agent. Microcapsules loaded with soybean oil and catalyst-containing olive oil were sep. prepared and used to prepare a dual-capsule self-healing coating. It was demonstrated through optical and SEM that, upon scribing the self-healing coating, the vegetable oils flowed out from microcapsules to self-heal the damaged area. When the healed area of the self-healing coating was re-scribed, self-healing was repeated, which was confirmed by SEM (SEM) and anticorrosion and electrochem. testing. Our new repeatable self-healing coating provides the merits of easy preparation, no need for external intervention such as light irradiation, and an environmentally-friendly nature.

Polymers (Basel, Switzerland) published new progress about Anticorrosive coating materials. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, SDS of cas: 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts