Tag: 200-300

HPLC of Formula: 63012-03-3On November 5, 2004 ,《The effects of aromatic substituents on the chromatographic enantioseparation of diarylmethyl esters with the Whelk-O1 chiral stationary phase》 appeared in Journal of Chromatography A. The author of the article were Job, Gabriel E.; Shvets, Alex; Pirkle, William H.; Kuwahara, Shunsuke; Kosaka, Masashi; Kasai, Yusuke; Taji, Hiromi; Fujita, Kaori; Watanabe, Masataka; Harada, Nobuyuki. The article conveys some information:

Members of diarylmethanols, diarylmethyl pivalates, and diarylmethyl acetates were enantioresolved with the (S,S)-Whelk-O1 chiral stationary phase (CSP). An analog of the (S,S)-Whelk-O1 selector was combined with enantioenriched samples of the various diarylmethyl pivalates and thereby used as a chiral solvating agent (CSA) for high field 1H NMR studies. The absolute configurations of a number of chiral diarylmethyl pivalates were assigned using this approach, and hydrolysis of the pivalates allowed assignment of the absolute configurations of the corresponding diarylmethanols. Chromatog., 1H NMR, and x-ray evidence are given in support of a chiral recognition model for the enantioresoln. of diarylmethyl esters on this CSP. In the experimental materials used by the author, we found (3-Chlorophenyl)(phenyl)methanol(cas: 63012-03-3HPLC of Formula: 63012-03-3)

(3-Chlorophenyl)(phenyl)methanol(cas: 63012-03-3) belongs to hydroxy-containing compounds. Hydroxy-containing compounds engage in intermolecular hydrogen bonding increasing the electrostatic attraction between molecules and thus to higher boiling and melting points than found for compounds that lack this functional group. Organic compounds, which are often poorly soluble in water, become water-soluble when they contain two or more hydroxy groups, as illustrated by sugars and amino acid.HPLC of Formula: 63012-03-3

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Related Products of 591-70-8On May 18, 2022 ,《Disparities and Early Engagement Associated with the 18- to 36-month High-risk Infant Follow-up Visit among Very Low Birthweight Infants in California.》 appeared in The Journal of pediatrics. The author of the article were Lakshmanan, Ashwini; Rogers, Elizabeth E; Lu, Tianyao; Gray, Erika; Vernon, Lelis; Briscoe, Heather; Profit, Jochen; Jocson, Maria A L; Hintz, Susan R. The article conveys some information:

OBJECTIVE: To determine follow-up rates for the high-risk infant follow-up (HRIF) visit at 18-36 months among infants with very low birthweights and identify factors associated with completion. STUDY DESIGN: We completed a retrospective cohort study using linked California Perinatal Quality of Care Collaborative neonatal intensive care unit, California Perinatal Quality of Care Collaborative California Children’s Services HRIF, and Vital Statistics Birth Cohort databases. We identified maternal, sociodemographic, neonatal, clinical, and HRIF program level factors associated with the 18- to 36-month follow-up using multivariable Poisson regression. RESULTS: From 2010 to 2015, among 19 284 infants with very low birthweight expected to attend at least 1 visit at 18-36 months, 10 249 (53%) attended. On multivariable analysis, factors independently associated with attendance at an 18- to 36-month visit included estimated gestational age (relative risk [RR], 1.21; 95% CI, 1.15-1.26; <26 weeks vs ≥31 weeks), maternal education (RR, 1.09; 95% CI, 1.06-1.12; college degree or more vs high school), distance from clinic (RR, 0.92; 95% CI, 0.89-0.97; fourth quartile vs first quartile), and Black non-Hispanic race vs White race (RR, 0.88; 95% CI, 0.84-0.92). However, completion of an initial HRIF visit within the first 12 months was the factor most strongly associated with completion of an 18- to 36-month visit (RR, 6.47; 95% CI, 5.91-7.08). CONCLUSIONS: In a California very low birthweight cohort, maternal education, race, and distance from the clinic were associated with sustained HRIF participation, but attendance at a visit by 12 months was the most significantly associated factor. These findings highlight the importance of early engagement with all families to ensure equitable follow-through for children born preterm. The experimental process involved the reaction of Octadecan-9-ol(cas: 591-70-8Related Products of 591-70-8)

Octadecan-9-ol(cas: 591-70-8) belongs to hydroxy-containing compounds. Hydroxy-containing compounds engage in intermolecular hydrogen bonding increasing the electrostatic attraction between molecules and thus to higher boiling and melting points than found for compounds that lack this functional group. Organic compounds, which are often poorly soluble in water, become water-soluble when they contain two or more hydroxy groups, as illustrated by sugars and amino acid.Related Products of 591-70-8

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Application of 20880-92-6On March 6, 2020, Jakas, Andreja; Visnjevac, Aleksandar; Jeric, Ivanka published an article in Journal of Organic Chemistry. The article was 《Multicomponent Approach to Homo- and Hetero-Multivalent Glycomimetics Bearing Rare Monosaccharides》. The article mentions the following:

We applied a multicomponent approach to access a library of densely functionalized homo- and hetero-multivalent glycomimetics comprising aldehyde, amine, and isocyanide components related to isopropylidene-protected D-fructose, L-sorbose, D-galactose, and D-allose. Passerini products were obtained in very good yields (up to 78%) and high diastereoselectivities (up to 98:2). Three types of products were obtained by the Ugi reaction; along with the “”classical”” four-component product, α-acylaminoamides, a three-component α-aminoamides, and a four- component α-aminoacylamides were isolated. The presence of multiple pathways is rationalized by the structure of the imidate intermediate, mainly influenced by the amine component. In the part of experimental materials, we found many familiar compounds, such as ((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4′,5′-d]pyran-3a-yl)methanol(cas: 20880-92-6Application of 20880-92-6)

((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4′,5′-d]pyran-3a-yl)methanol(cas: 20880-92-6) is a useful reactant for examining the effectiveness of sulfamate and sulfamide groups for the inhibition of carbonic anhydrase-​II (CA-​II)​.Application of 20880-92-6 And it is used as chiral auxiliaries in Michael and Aldol addition reactions.

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《Synthesis of Vertically Conformal ZnO/CuO Core-Shell Nanowire Arrays by Electrophoresis-Assisted Electroless Deposition》 was written by Kim, Sanggon; Lee, Younghyo; Gu, Ayeong; You, Chanseok; Oh, Kwangjoong; Lee, Sanghyun; Im, Yeonho. Reference of Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrateThis research focused onzinc copper oxide nanowire array electroless deposition nanostructure. The article conveys some information:

Vertically conformal ZnO/CuO core-shell nanowire (NW) arrays with high aspect ratios were synthesized by electrophoresis-assisted electroless deposition (EAELD) of CuO onto preformed ZnO NWs. Using this method, conformal CuO seeds were successfully formed on long ZnO NWs by the electrostatic attachment of colloidal Cu2O NPs under the solution and subsequent thermal oxidation Using the CuO seeds, conformal CuO shell to core ZnO NWs were successfully fabricated by kinetic-limited deposition in the solution, which overcame the inherent diffusion limitations of conventional electroless deposition. This exptl. evidence and thermodn. modeling results are presented to validate the proposed EAELD mechanism. The vertically conformal hetero-nanostructure arrays developed in this work are a promising platform for applications such as solar cells and catalysts because of the maximized junction areas and active sites.Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5Reference of Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate) was used in this study.

Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5) is a ferroelectric crystal with a high piezoelectric effect and electromechanical coupling coefficient. Reference of Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate Potassium sodium tartrate tetrahydrate has been used in the preparation of Lowry reagent for the determination of microsomal protein concentration in rat hepatic microsomes by Lowry method.

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《Ball milling synthesis of covalent organic framework as a highly active photocatalyst for degradation of organic contaminants》 was written by Lv, Hongzhou; Zhao, Xiaoli; Niu, Hongyun; He, Sijing; Tang, Zhi; Wu, Fengchang; Giesy, John P.. Application of 34374-88-4This research focused ontriformylphloroglucinol melamine covalent organic framework photocatalyst wastewater treatment; Ball milling; Covalent organic framework; Mechanochemical fabrication; Photocatalysis; TpMA. The article conveys some information:

Facile, environmentally-friendly fabrication of high-yield and stable covalent organic framework (COF) materials was a limitation to their large-scale production and application. Ball milling was used to synthesize COF by mechanochem. reaction between 1,3,5-triformylphloroglucinol (Tp) and melamine (MA) at ambient temperature Different routes (liquid-free, solvent-assisted and catalyst-assisted) and proportions of liquids (solvents or catalyst) were studied. Two morphologies were obtained when various amounts of liquid were added during grinding. The 2 forms were interwoven thread-shaped and exfoliative thin ribbon-like structures. Further, visible-light photocatalytic (λ > 400 nm) performance and mechanism of the 2 structures of COFs were studied. The exfoliative ribbon-like structures exhibited greater rates of photodegradation of phenol and retained 87.6% of initial photodegradation after being used 4 times. Addition of liquid catalyst not only improved crystallinity of the COF materials, but also enhanced rates of photocatalytic reactions. Photocatalytic activity of the exfoliative structure of TpMA synthesized by ball milling was comparable with that of the photocatalyst prepared using the solvothermal method, while time to prepare the catalyst was shortened by 36-fold and the amount of solvent used was reduced by 8-fold at room temperature Mechanochem. synthesis is a promising potential tool for large-scale production of COFs, which will make greater use of COFs for degradation of pollutants. After reading the article, we found that the author used 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4Application of 34374-88-4)

2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4) is a member of phloroglucinol derivatives. Phloroglucinol derivatives are a major class of secondary metabolites. Phloroglucinol compounds can be classified into monomeric, dimeric, trimeric and higher phloroglucinols, and phlorotannins.Application of 34374-88-4

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Application of 34374-88-4In 2020 ,《Thiol-functionalized magnetic covalent organic frameworks by cutting strategy for efficient removal of Hg2+ from water》 was published in Journal of Hazardous Materials. The article was written by Huang, Lijin; Shen, Rujia; Liu, Ruiqi; Shuai, Qin. The article contains the following contents:

Covalent organic frameworks (COFs) have attracted tremendous attention due to their excellent performance in wastewater remediation, but their practical application still suffers from various challenges. The development of highly-efficient magnetic COFs along with fast adsorption kinetic and high adsorption capacity is very promising. To achieve the purpose, thiol-functionalized magnetic covalent organic frameworks (M-COF-SH) with abundant accessible chelating sites were designed and synthesized by utilizing disulfide derivative as building blocks and subsequently cutting off the disulfide linkage. After the cutting process, the crystallinity, porosity, superparamagnetism of pristine M-COF are well maintained, and the resultant M-COF-SH turned out to be an effective and selective platform for Hg2+ capture from water. Impressively, the resulting composite exhibited a maximum adsorption capacity of Hg2+ as high as 383 mg g-1. In addition, it also displays a rapid kinetic, where the adsorption equilibrium can be achieved within 10 min. More importantly, there is no significant loss of its adsorption performance even after recycling 5 times. This work not only offers a reliable platform for wastewater remediation but also provides a conceptual guide to prepare functionalized M-COF composites which cannot be obtained through conventional approaches. In addition to this study using 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde, there are many other studies that have used 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4Application of 34374-88-4) was used in this study.

2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4) is a member of phloroglucinol derivatives. Phloroglucinol derivatives are a major class of secondary metabolites. Phloroglucinol compounds can be classified into monomeric, dimeric, trimeric and higher phloroglucinols, and phlorotannins.Application of 34374-88-4

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Wu, Chaoqiang; Bao, Zhicheng; Dou, Bowen; Wang, Jianbo published their research in Chemistry – A European Journal in 2021. The article was titled 《Generation of α-Boryl Radicals and Their Conjugate Addition to Enones: Transition-Metal-Free Alkylation of gem-Diborylalkanes》.Electric Literature of C13H26B2O4 The article contains the following contents:

A transition-metal-free method for the alkylation of gem-diborylalkanes with α,β-unsaturated ketones has been developed. It is demonstrated that the α-boryl radicals can be generated efficiently from gem-diborylalkanes with the aid of catechol and oxidants. The α-boryl radicals formed through such process can be engaged in conjugate addition reaction with α,β-unsaturated ketones. This transformation is a straightforward method for the synthesis of γ-borylketones. After reading the article, we found that the author used Bis[(pinacolato)boryl]methane(cas: 78782-17-9Electric Literature of C13H26B2O4)

Bis[(pinacolato)boryl]methane(cas: 78782-17-9) belongs to organoboron compounds. Organoboron compounds have been a cornerstone of synthetic transformations for decades. Areas such as boron-containing catalysts, metalate chemistry, photoredox methods, and boryl anions have brought significant new developments in understanding and provided new reactivity upon.Electric Literature of C13H26B2O4

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The author of 《Fast Desalination by Multilayered Covalent Organic Framework (COF) Nanosheets》 were Zhou, Wei; Wei, Mingjie; Zhang, Xin; Xu, Fang; Wang, Yong. And the article was published in ACS Applied Materials & Interfaces in 2019. Quality Control of 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde The author mentioned the following in the article:

Covalent organic frameworks (COFs) are penetrated with uniform and ordered nanopores, implying their great potential in mol./ion separations As an imine-linked, stable COF, TpPa-1 is receiving tremendous interest for mol. sieving membranes. Theor., atomically thin TpPa-1 monolayers exhibit extremely high water permeance but unfortunately no rejection to ions because of its large pore size (∼1.58 nm). The COF monolayers tend to stack to form laminated multi-layers, but how this stacking influences water transport and ion rejections remains unknown. Herein, we investigate the transport behavior of water and salt ions through multi-layered TpPa-1 COFs by nonequilibrium mol. dynamics simulations. By analyzing both the interfacial and interior resistance for water transport, we reveal that with rising stacking number of COF multi-layers exhibit increasing ion rejections at the expense of water permeance. More importantly, stacking in the offset eclipsed fashion significantly reduces the equivalent pore size of COF multi-layers to 0.89 nm, and ion rejection is correspondingly increased. Remarkably, 25 COF monolayers stacked in this fashion give 100% MgCl2 rejection, whereas water permeance remains 1 to 2 orders of magnitude higher than that of com. nanofiltration membranes. This work demonstrates the rational design of fast membranes for desalination by tailoring stacking number and fashion of the COF monolayers. In the experiment, the researchers used many compounds, for example, 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4Quality Control of 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde)

2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4) is a member of phloroglucinol derivatives. Regarding monomeric phloroglucinols, this group encompasses acryl phloroglucinols, phloroglucinol-terpene adducts, phloroglucinol glycosides, halogenated phloroglucinols, prenylated phloroglucinols, and cyclicroup polyketides.Quality Control of 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde

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In 2019,Applied Catalysis, B: Environmental included an article by Lu, Meng; Li, Qiang; Liu, Jiang; Zhang, Feng-Ming; Zhang, Lei; Wang, Jin-Lan; Kang, Zhen-Hui; Lan, Ya-Qian. Reference of 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde. The article was titled 《Installing earth-abundant metal active centers to covalent organic frameworks for efficient heterogeneous photocatalytic CO2 reduction》. The information in the text is summarized as follows:

Photocatalytic conversion of CO2 into energy carriers has been recognized as a highly promising strategy for achieving the virtuous carbon cycle in nature. The realization of this process depends on an efficient catalyst to reduce the reaction barrier. Herein, we report a series of transition metal ion modified crystalline covalent organic frameworks (COFs) for the heterogeneous photocatalytic reduction of CO2. By coordinating different kinds of open metal active species into COFs, the resultant DQTP (2,6-diaminoanthraquinone – 2,4,6-triformylphloroglucinol) COF-M (M = Co/Ni/Zn) exerts a strong influence on the activity and selectivity of products (CO or HCOOH). Significantly, DQTP COF-Co exhibits a high CO production rate of 1.02 × 103 μmol h-1 g-1, while DQTP COF-Zn has a high selectivity (90% over CO) for formic acid generation (152.5 μmol h-1 g-1). This work highlights the great potential of using stable COFs as platforms to anchor earth-abundant metal active sites for heterogeneous CO2 reduction In the experiment, the researchers used 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4Reference of 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde)

2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4) is a member of phloroglucinol derivatives.Reference of 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehydeFor acyl phloroglucinols, it is considered the largest category of compounds among phloroglucinols of natural characteristics.

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Application of 6381-59-5In 2016 ,《Optimization of cold-active CMCase production by psychrotrophic Sphingomonas sp. FLX-7 from the cold region of China》 appeared in Cellulose (Dordrecht, Netherlands). The author of the article were Li, Dapeng; Feng, Lu; Liu, Keran; Cheng, Yi; Hou, Ning; Li, Chunyan. The article conveys some information:

Organic solid waste consists of 70 % biodegradables, such as cellulose, which is unable to be degraded quickly and efficiently in the cold region of China. Psychrotrophic cellulose-degrading bacteria play an important role in cellulose degradation at low temperatures In this study, a psychrotrophic cellulose-degrading FLX-7 strain with high carboxymethyl cellulase (CMCase) activity was isolated from the soil of a solid waste landfill under the environmental temperature of -10 °C. The FLX-7 strain was identified as Sphingobacterium sp. based on morphol. and physiol. and biochem. properties as well as 16S rRNA gene sequence anal. To improve the cold-active CMCase production of FLX-7, fermentation conditions were optimized using response surface methodol. based on a Box-Behnken design. The maximum CMCase activity (16.95 U/mL) was obtained at optimal fermentation conditions (inoculum size 2.1 %, temperature 10.4 °C, incubation time 73.5 h, and pH 7.2). The optimum pH and temperature for enzymic reaction of cold-active CMCase were 5.0 and 25 °C, resp. The cold-active CMCase was stable at a wide pH range of 5.0-9.0 and temperature range of 10-30 °C. The FLX-7 strain could be distributed via a psychrotrophic cellulose-degrading strain library and applied more broadly to organic solid waste composting in cold regions. In the experiment, the researchers used many compounds, for example, Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5Application of 6381-59-5)

Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5) is a ferroelectric crystal with a high piezoelectric effect and electromechanical coupling coefficient. Application of 6381-59-5 It is utilized to break up emulsion in organic synthesis as well as a common precipitant in protein crystallography.

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