Tag: 200-300

The author of 《Paper-Based Colorimetric Sensor System for High-Throughput Screening of C-H Borylation》 were Kim, Han-Sung; Eom, Min Sik; Han, Min Su; Lee, Sunwoo. And the article was published in Chemistry – A European Journal in 2017. SDS of cas: 401797-00-0 The author mentioned the following in the article:

A paper-based colorimetric sensor system (PBCSS) was developed to detect the amount of bis(pinacolato)diboron (B2Pin2) and applied as a high-throughput screening protocol in Ir-catalyzed C-H borylation. First, 96 ligands were screened for the borylation of benzene, and then 12 of them were selected and tested for five substrates. These reaction mixtures were spotted in the PBCSS, showing a blue-violet color. The value of the gray scale of each reaction was obtained from these colored spots and converted to the extent of conversion of B2Pin2. The extents of conversion of B2Pin2 obtained from the PBCSS showed good correlation with those obtained from gas chromatog. anal. The modified conversion using blank data showed good correlation with the yield of products. In the part of experimental materials, we found many familiar compounds, such as 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0SDS of cas: 401797-00-0)

2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0) belongs to hydroxy-containing compounds. Hydroxy groups participate in the dehydration reactions that link simple biological molecules into long chains. The joining of a fatty acid to glycerol to form a triacylglycerol removes the −OH from the carboxy end of the fatty acid.SDS of cas: 401797-00-0

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Stavber, Stojan; Planinsek, Zdenka; Kosir, Iztok; Zupan, Marko published their research in Journal of Fluorine Chemistry on December 31 ,1992. The article was titled 《Substituent modulation of mild fluorination of aromatic molecules with cesium fluoroxysulfate》.Formula: C13H11ClO The article contains the following contents:

Functionalization of mono- and disubstituted benzene derivative with CsSO4F has been modulated by substituents on the benzene ring. α-Hydroxyalkylbenzenes, with a deactivated ring, were oxidized to phenones, while fluorodealkylation was achieved in high yield when electron-donating groups were present in a para position. Electron-withdrawing substituents favored chain fluorofunctionalization in alkylbenzenes, while ring fluorination was found exclusively in acylamino-derivatized alkylbenzenes; fluoro-addition products were formed in the case of p-alkoxy-substituted alkylbenzene derivatives In the experiment, the researchers used (3-Chlorophenyl)(phenyl)methanol(cas: 63012-03-3Formula: C13H11ClO)

(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.Formula: C13H11ClO

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Mukherji, Ananya; Addanki, Rupa Bai; Halder, Suvendu; Kancharla, Pavan K. published their research in Journal of Organic Chemistry on December 3 ,2021. The article was titled 《Sterically Strained Bronsted Pair Catalysis by Bulky Pyridinium Salts: Direct Stereoselective Synthesis of 2-Deoxy and 2,6-Dideoxy-β-thioglycosides from Glycals》.Application of 20880-92-6 The article contains the following contents:

A sterically strained ionic Bronsted pair complex obtained from a sterically bulky base 2,4,6-tri-tert-butylpyridine and hydrochloric acid unusual reactivity to the anionic chloride. The complete shielding of the cationic [N-H]+ by the bulky ortho-tert-Bu groups weakens the possible hydrogen-bonding interactions with the chloride anion, and the [N-H]+···Cl- distance is unusually longer (3.10 Å). This results in strained/frustrated electrostatic interactions between the ion-pair, thus infusing an increased reactivity in both of the ions, which results in the activation of a third mol. like thiol via hydrogen-bonding. This intriguing weak interaction-based reactivity has been utilized to develop an organocatalytic synthesis of 2-deoxy-β-thioglycosides from glycals. While the 1H NMR studies showcase the diamagnetic activation of thiols in the presence of the catalyst, the ESR (EPR) studies reveal the generation of a radical species that suggests a possible frustrated radical pair catalysis. Besides, IR spectroscopic studies explain the intriguing influence of size/charge d. of the anion on the solvation-insusceptible, cationic [TTBPyH]+ and on the observed reactivity. In the experiment, the researchers used many compounds, for example, ((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)​. And it is used as chiral auxiliaries in Michael and Aldol addition reactions.Application of 20880-92-6

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Reference of Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrateIn 2019 ,《A comparative analysis on optical, photo luminescence and laser damage properties of conventional and uniaxial method grown semi organic nonlinear optical material – sodium potassium tartrate tetrahydrate》 was published in Materials Research Innovations. The article was written by Purusothaman, R.; Shankar, M.; Dennis Raj, A.; Vimalan, M.; Rajarajan, K.; Vetha Potheher, I.. The article contains the following contents:

Bulk growth of (010) oriented Sodium Potassium Tartrate Tetrahydrate (SPTT), a Nonlinear Optical single crystal was grown by solution growth technique in uniaxial and conventional methods. Optically transparent single crystal of diameter 20 mm and length 150 mm was harvested by uniaxial method in a period of 25 days and dimensions upto10 mm ×5 mm ×3 mm by conventional method within 15 days. The grown crystal was confirmed by single crystal X-ray Diffraction (XRD) and Fourier Transform IR (FTIR) anal. Phase purity was checked with Powder XRD (PXRD) anal. Uniaxial method grown crystal has higher transmittance than the conventional grown crystal. The Second Harmonic Generation (SHG) efficiency was found to be 0.9 times higher than KDP and laser damage threshold also measured and reported. Broad Photoluminescence (PL) emission was observed at 350-449 nm from the crystals grown by both the methods and it arises due to the UV and violet of visible spectral emissions. Pos. photo conducting nature of the grown crystals was confirmed by photoconductivity measurements. The experimental process involved the reaction of Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5Reference of Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate)

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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Electric Literature of C4H12KNaO10In 2019 ,《Spectroscopic and theoretical studies of potassium sodium L-(+)-tartrate tetrahydrate and L-tartaric acid used as precursors for in situ laser-induced deposition of the catalytically active copper microstructures》 appeared in Optical and Quantum Electronics. The author of the article were Tumkin, Ilya I.; Khairullina, Evgeniia M.; Myund, Liubov A.; Logunov, Lev S.; Gordeychuk, Dmitrii I.; Panov, Maxim S.; Kochemirovsky, Vladimir A.. The article conveys some information:

In this work we study the influence of L-(+)-KNaC4H4O6 x 4H2O (KNaT) and L-H2C4H4O6 (H2T) on the complexation processes occurring during in situ laser-induced catalytic destruction of the organic components of the aqueous solutions with formation of the unsaturated hydrocarbons. For that purpose, ATR-FTIR, Raman, IR, and NIR spectroscopy as well as quantum chem. calculations were implemented. It was observed that hydration of T2- anion via carboxylate groups is stronger than that via hydroxyl groups. We also established the changes in the spectral characteristics of the absorption bands corresponding to vibrations of T2-, HT-, and H2T, at solid state-liquid and acid-salt transitions, depending on concentration of the solution components and the [OH-]/[H2T] ratio. Finally, it was shown that ethylene is a main product of the catalytic destruction of the copper tartrate complexes. In the experimental materials used by the author, we found Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5Electric Literature of C4H12KNaO10)

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. Electric Literature of C4H12KNaO10 As a Biuret reagent, it is used to measure the protein concentration. Furthermore, it is used as laxative and is also used in food industry.

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In 2011,Chemistry – A European Journal included an article by Chow, Wing-Kin; So, Chau-Ming; Lau, Chak-Po; Kwong, Fuk-Yee. Reference of 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane. The article was titled 《Palladium-Catalyzed Borylation of Aryl Mesylates and Tosylates and Their Applications in One-Pot Sequential Suzuki-Miyaura Biaryl Synthesis》. The information in the text is summarized as follows:

Palladium-catalyzed borylation with the N-methyl-2-(2′-dicyclohexylphosphino-5′-methoxyphenyl)indole (MeO-CM-Phos) ligand of ten aryl tosylates and twelve aryl mesylates gave the corresponding pinacol aryl boronates in 63% to 97% yield. The reaction conditions are mild and provide excellent functional-group compatibility (e.g., CN, CHO, COOMe, ketone, NH2, benzodioxole, quinolyl, benzothiazole or NH-indole). E.g., reaction of 3-cyanophenyl mesylate with bis(pinacolato)diboron afforded pinacol (3-benzonitrile) boronate in 97% yield. The Pd/MeO-CM-phos catalyst system allows one-pot sequential reactions in the preparation of unsym. biaryls. Four biaryls were prepared by one-pot two-step and one-pot three-step transformations of aryl tosylates and 3-cyanophenol, resp. In the experiment, the researchers used 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0Reference of 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane)

2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0) belongs to hydroxy-containing compounds. Hydroxy groups participate in the dehydration reactions that link simple biological molecules into long chains. The joining of a fatty acid to glycerol to form a triacylglycerol removes the −OH from the carboxy end of the fatty acid.Reference of 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

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HPLC of Formula: 401797-00-0On June 12, 2014, Fader, Lee D.; Carson, Rebekah; Morin, Sebastien; Bilodeau, Francois; Chabot, Catherine; Halmos, Ted; Bailey, Murray D.; Kawai, Stephen H.; Coulombe, Rene; Laplante, Steven; Mekhssian, Kevork; Jakalian, Araz; Garneau, Michel; Duan, Jianmin; Mason, Stephen W.; Simoneau, Bruno; Fenwick, Craig; Tsantrizos, Youla; Yoakim, Christiane published an article in ACS Medicinal Chemistry Letters. The article was 《Minimizing the Contribution of Enterohepatic Recirculation to Clearance in Rat for the NCINI Class of Inhibitors of HIV》. The article mentions the following:

A scaffold replacement approach was used to identifying the pyridine series of noncatalytic site integrase inhibitors (NCINIs). These mols. bind with higher affinity to a tetrameric form compared to a dimeric form of integrase. Optimization of the C6 and C4 positions revealed that viruses harboring T124 or A124 amino acid substitutions are highly susceptible to these inhibitors, but viruses having the N124 amino acid substitution are about 100-fold less susceptible. Compound 20 (I) had EC50 values <10 nM against viruses having T124 or A124 substitutions in IN and >800 nM in viruses having N124 substitutions. Compound 20 had an excellent in vitro ADME profile and demonstrated reduced contribution of biliary excretion to in vivo clearance compared to BI 224436, the lead compound from the quinoline series of NCINIs. The experimental part of the paper was very detailed, including the reaction process of 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0HPLC of Formula: 401797-00-0)

2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0) belongs to hydroxy-containing compounds. Hydroxy groups participate in the dehydration reactions that link simple biological molecules into long chains. The creation of a peptide bond to link two amino acids to make a protein removes the −OH from the carboxy group of one amino acid.HPLC of Formula: 401797-00-0

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Electric Literature of C14H21BO2On September 30, 2020 ,《Undirected ortho-selectivity in C-H borylation of arenes catalyzed by NHC platinum(0) complexes》 was published in Mendeleev Communications. The article was written by Rzhevskiy, Sergey A.; Topchiy, Maxim A.; Golenko, Yulia D.; Gribanov, Pavel S.; Sterligov, Grigorii K.; Kirilenko, Nikita Yu.; Ageshina, Alexandra A.; Bermeshev, Maxim V.; Nechaev, Mikhail S.; Asachenko, Andrey F.. The article contains the following contents:

Borylation of arenes with bis(pinacolato)diboron catalyzed by sterically encumbered NHC platinum complexes proceeds predominantly at ortho-position even in the absence of a directing group (o : m : p ratio up to 10: 3: 1). The similar borylation with pinacolborane would proceed less selectively. In the part of experimental materials, we found many familiar compounds, such as 2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0Electric Literature of C14H21BO2)

2-(3,4-Dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 401797-00-0) 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.Electric Literature of C14H21BO2

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Alcohol – Wikipedia,
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Application of 20880-92-6On May 3, 2019 ,《Esterification by Redox Dehydration Using Diselenides as Catalytic Organooxidants》 appeared in Journal of Organic Chemistry. The author of the article were Pickel, Thomas C.; Akondi, Srirama Murthy; Liebeskind, Lanny S.. The article conveys some information:

Ortho-functionalized aryl diselenides are catalytic (5.0 mol %) oxidants for the construction of esters from carboxylic acids and alcs. in the presence of stoichiometric tri-Et phosphite and dioxygen in air as the terminal redox reagents (redox dehydration conditions). The reaction proceeds through the intermediacy of the anhydride and requires the presence of 10% DMAP to drive the esterification.((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) was used in this study.

((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.

Referemce:
Alcohol – Wikipedia,
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《Plasma-etching enhanced titanium oxynitride active phase with high oxygen content for ambient electrosynthesis of ammonia》 was written by Kang, Shenghong; Wang, Jialu; Zhang, Shengbo; Zhao, Cuijiao; Wang, Guozhong; Cai, Weiping; Zhang, Haimin. COA of Formula: C4H12KNaO10This research focused ontitanium oxynitride phase plasma etching oxygen content ammonia electrosynthesis. The article conveys some information:

Here we report that the plasma-etching processed com. titanium nitride (TiN-PE, PE represents plasma-etching) that was first treated by ball-milling method (TiN-BM, BM represents ball-milling) is highly electrochem. active for the nitrogen (N2) reduction reaction (NRR) to NH3. The results demonstrate that the TiN-PE as NRR electrocatalyst can deliver a yield rate of NH3 of 3.32 × 10-10 mol s-1 cm-2 (4.1 mg h-1 g-1cat.) with a Faradaic efficiency of 9.1% at -0.6 V (vs. RHE) in 0.1 M Na2SO4 solution (pH = 3.2). The XPS anal. indicates that the titanium oxynitride (TiOxNy) with high oxygen content on TiN surface was significantly enhanced by this plasma-etching approach, which is electrocatalytically active species for NRR. The 15N isotopic labeling exptl. results using 15N2 as the feeding gas verify that the syntheized NH3 product during NRR is composed of 15N in 15NH+4 (the enrichement of 64%) and 14N in 14NH+4 (the enrichment of 36%), indicating that the NRR process follows the Mars-van Krevelen mechanism. In the experimental materials used by the author, we found Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5COA of Formula: C4H12KNaO10)

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. COA of Formula: C4H12KNaO10 As a Biuret reagent, it is used to measure the protein concentration. Furthermore, it is used as laxative and is also used in food industry.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts