Month: November 2022

Synthesis, spectroscopic characterization and quantum chemical studies of a dioxomolybdenum(VI) complex with an N,S-substituted pyridoxal thiosemicarbazone was written by Ilhan-Ceylan, Berat;Bolukbasi, Olcay;Yilmaz, Ayberk;Kaya, Kerem;Kurt, Yasemin;Ulkuseven, Bahri. And the article was included in Polyhedron in 2021.Application of 65-22-5 The following contents are mentioned in the article:

The new compounds Pyridoxal N-allyl-S-methylthiosemicarbazone (L) and the dioxomolybdenum(VI) complex [MoO₂(L)CH₃OH] have been synthesized and characterized by elemental anal., UV-Vis, FT-IR, Raman and ¹H NMR spectra, and also by the single crystal X-ray diffraction technique. Single crystals of the cis-dioxomolybdenum(VI) complex were obtained by evaporating its methanol solution According to the single-crystal X-ray diffraction investigation, the molybdenum atom in the complex is in a distorted octahedral coordination. The sixth coordination site is occupied by the oxygen atom of a methanol solvent mol. The methanol coordination between the oxygen and molybdenum atoms is the weakest bond, with a Mo-O bond length of 2.355 Å. The geometries and vibrational spectra of the pyridoxal thiosemicarbazone (L) and its complex are explained by quantum chem. calculations This study involved multiple reactions and reactants, such as 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5Application of 65-22-5).

3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Application of 65-22-5

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Changes in Proanthocyanidin Content during the Processing of Umeshu, a Spirit-Based Liqueur of Japanese Apricot (Prunus mume Sieb. et Zucc.) Fruit was written by Horinishi, Asako;Toyama, Yoshimasa;Watanabe, Minoru;Ayano, Shigeru;Ozaki, Yoshihiko. And the article was included in ACS Food Science & Technology in 2022.Related Products of 29106-49-8 The following contents are mentioned in the article:

Japanese apricot (Prunus mume Sieb. et.Zucc.), also known as Ume, is used as a food item and a folk remedy in most east Asian countries, including Japan. Umeshu is a liqueur made from Ume and is one of the most popular products obtained from this fruit. The polyphenols (PPs) and proanthocyanidins (PAs) present in Umeshu and the residual fruit obtained post immersion were analyzed. We are the first to report the characteristics of the phenolic compounds obtained during the processing of Umeshu. The concentration of PA in Umeshu was approx. 16μg/mL, and this concentration was significantly lower than the concentrations of PA present in other liqueurs. It is believed that most of the PAs contained in Umeshu leach out from the endocarp. The total amounts of extractable PAs decreased, and the total amounts of nonextractable PAs increased in Umeshu and the residual fruit during the processing stage. This study involved multiple reactions and reactants, such as (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8Related Products of 29106-49-8).

(2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Related Products of 29106-49-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Preventive Effect of Apple Polyphenol Extract on High-Fat Diet-Induced Hepatic Steatosis in Mice through Alleviating Endoplasmic Reticulum Stress was written by Yan, Bei;Chen, Lei;Wang, Yanhui;Zhang, Jiacheng;Zhao, Hui;Hua, Qinglian;Pei, Shengjie;Yue, Zihang;Liang, Hui;Zhang, Huaqi. And the article was included in Journal of Agricultural and Food Chemistry in 2022.Application of 29106-49-8 The following contents are mentioned in the article:

In this work, the protective effect of apple polyphenol extract (APE) on hepatic steatosis was investigated. Thirty-two C57BL/6J mice were assigned randomly to control group, hepatic steatosis group, lovastatin group, and APE group. After 8 wk of intervention, APE supplementation markedly decreased the body weight gain, liver weight, liver index, epididymal adipose weight, epididymal adipose index, serum, and hepatic lipid levels. Hematoxylin and eosin staining revealed that APE supplementation alleviated histopathol. changes of hepatic steatosis. Western blot revealed that APE downregulated the protein levels of GRP78, IRE1α, p-IRE1α, XBP1, PERK, p-PERK, p-eIF2α, ATF6, PPAR-γ, SREBP-1c, FAS, and ACC1. In conclusion, this study found that APE inhibited IRE1α-XBP1, PERK-eIF2α, and ATF6 signaling pathways to alleviate endoplasmic reticulum stress, thereby improving HFD-induced hepatic steatosis. This study involved multiple reactions and reactants, such as (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8Application of 29106-49-8).

(2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.Application of 29106-49-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Synthesis of PtSn nanoparticles on carbon materials by different preparation methods for selective catalytic hydrogenation of citral was written by Stassi, Julieta;Mendez, Jonathan;Vilella, Irene;De Miguel, Sergio;Zgolicz, Patricia. And the article was included in Chemical Engineering Communications in 2020.Recommanded Product: 3,7-Dimethyloctan-1-ol The following contents are mentioned in the article:

In this work, PtSn bimetallic catalysts supported on three different carbons were prepared by two methods: (a) conventional impregnation followed by a reduction treatment under H_2- flow (CI) and (b) deposition-reduction in liquid phase (RLP). All the catalysts were tested in the selective hydrogenation of citral to the unsaturated alcs. (UA). A strong influence of the preparation method and the support was found over the selectivity to UA. For CI prepared catalysts, low Sn loadings give a metallic phase with highly ordered PtSn alloys, while for RLP catalysts, high Sn loadings give highly ordered phases with Sn ionic species intercalated in the Pt metallic phase. Both ordered phases are highly effective to promote the hydrogenation of carbonyl group. For the RLP method, high Sn/Pt molar ratios in solution leads to the formation of PtSn complexes with a good interaction between metals. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Recommanded Product: 3,7-Dimethyloctan-1-ol).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.Recommanded Product: 3,7-Dimethyloctan-1-ol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Synthesis and Properties of Alternating Copolymers Based on 4H-Cyclopenta[2,1-b:3,4-b’]dithiophene and 4H-Dithieno[3,2-b:2′,3′-d]silol was written by Drozdov, F. V.;Surin, N. M.;Peregudova, S. M.;Trukhanov, V. A.;Dmitryakov, P. V.;Chvalun, S. N.;Parashchuk, D. Yu.;Ponomarenko, S. A.. And the article was included in Polymer Science, Series B: Polymer Chemistry in 2019.Electric Literature of C10H22O The following contents are mentioned in the article:

A number of copolymers based on 4H-cyclopenta[2,1-b:3,4-b’]dithiophene and 4H-dithieno[3,2-b:2′,3′-d]silol are synthesized via direct C-H arylation and Suzuki cross-coupling, and their properties are compared. The chem. structure of the copolymers is investigated by ¹H and ¹³C NMR spectroscopy, and their mol.-mass characteristics are determined by GPC. The study of absorption spectra of the copolymers in dilute solutions and thin films shows that they absorb light in a wide visible spectral range (300-800 nm). On the basis of the cyclic voltammetry data, the levels of boundary MOs-the highest occupied and the lowest unoccupied-are estimated and the width of the energy gap is shown to be in the range of 1.4-1.9 eV. Using the copolymers as donor components of the active layer, the samples of solar photocells are manufactured and their photovoltaic properties are investigated. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Electric Literature of C10H22O).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Electric Literature of C10H22O

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Machine Learning Algorithm Identifies an Antibiotic Vocabulary for Permeating Gram-Negative Bacteria was written by Mansbach, Rachael A.;Leus, Inga V.;Mehla, Jitender;Lopez, Cesar A.;Walker, John K.;Rybenkov, Valentin V.;Hengartner, Nicolas W.;Zgurskaya, Helen I.;Gnanakaran, S.. And the article was included in Journal of Chemical Information and Modeling in 2020.COA of Formula: C37H74NO8P The following contents are mentioned in the article:

Drug discovery faces a crisis. The industry has used up the “obvious” space in which to find novel drugs for biomedical applications, and productivity is declining. One strategy to combat this is rational approaches to expand the search space without relying on chem. intuition, to avoid rediscovery of similar spaces. In this work, we present proof of concept of an approach to rationally identify a “chem. vocabulary” related to a specific drug activity of interest without employing known rules. We focus on the pressing concern of multidrug resistance in Pseudomonas aeruginosa by searching for submols. that promote compound entry into this bacterium. By synergizing theory, computation, and experiment, we validate our approach, explain the mol. mechanism behind identified fragments promoting compound entry, and select candidate compounds from an external library that display good permeation ability. This study involved multiple reactions and reactants, such as (2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5COA of Formula: C37H74NO8P).

(2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. A multistep synthesis may use Grignard-like reactions to form an alcohol with the desired carbon structure, followed by reactions to convert the hydroxyl group of the alcohol to the desired functionality.COA of Formula: C37H74NO8P

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Tautomeric design of ortho-hydroxyheterocyclic Schiff bases was written by Kwocz, Agnieszka;Kochel, Andrzej;Chudoba, Dorota;Filarowski, Aleksander. And the article was included in Journal of Molecular Structure in 2015.Reference of 65-22-5 The following contents are mentioned in the article:

The article reports on the synthesis and crystallog. and theor. studies on various heterocyclic derivatives of ortho-hydroxy Schiff bases. The prevailing of one of the two (enolimine – OH and ketoamine – NH) tautomeric forms has been stated in studied compounds depending on the substitutes in heterocyclic formation, the nitrogen and carbon atoms of the imine group. A specific situation has been shown in (1E)-1-(5-chloro-2-hydroxy-3-nitrophenyl)ethanone oxime compound The potentials on the proton transfer of the hydrogen bridges in these compounds have been found out. Grounded on the obtained potential curves the influence of the protonation on nitrogen in the pyridoxal derivative of the studied ortho-hydroxy Schiff bases has been analyzed. The most efficient method of the impact (by means of various substitutes) on the intramol. tautomeric equilibrium in ortho-hydroxy Schiff bases has been presented. This study involved multiple reactions and reactants, such as 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5Reference of 65-22-5).

3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5) belongs to alcohols. Alcohols are among the most common organic compounds. They are used as sweeteners and in making perfumes, are valuable intermediates in the synthesis of other compounds, and are among the most abundantly produced organic chemicals in industry. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.Reference of 65-22-5

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Turn on ESIPT based chemosensor for histidine: Application in urine analysis and live cell imaging was written by Das, Chandrima;Pakhira, Bholanath;Rheingold, Arnold L.;Kumar Chattopadhyay, Shyamal. And the article was included in Inorganica Chimica Acta in 2018.Related Products of 65-22-5 The following contents are mentioned in the article:

A vitamin B₆ cofactor containing excited-state intramol. proton transfer (ESIPT) based fluorescent sensor [Cu(LH₂)Cl₂]·2H₂O [LH₂ is pyridoxal-semicarbazide Schiff base] is used as a selective “naked-eye” fluorescent sensor of L-histidine at pH 7.4 in aqueous media via the ligand displacement approach. Uv-Vis spectrophotometry and cyclic voltammetry can also be used to detect L-histidine by the Cu(II)-complex. The DFT calculation also supports the sensing phenomena. The fluorescence imaging studies indicated that the Cu(II)-complex can be applied to visualize the intracellular histidine in living cells. Our chemosensor can also be used for quant. determination of histidine in urine. It acts as a helpful tool for physiol. and pathol. estimation of histidine. It also shows high efficiency in ‘dip-stick’ method. This study involved multiple reactions and reactants, such as 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5Related Products of 65-22-5).

3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.Related Products of 65-22-5

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

TLC-Based Fingerprinting Analysis of the Geographical Variation of Melastoma malabathricum in Inland and Archipelago Regions: A Rapid and Easy-to-Use Tool for Field Metabolomics Studies was written by Mayasari, Dian;Murti, Yosi Bayu;Pratiwi, Sylvia Utami Tunjung;Sudarsono, Sudarsono;Hanna, George;Hamann, Mark T.. And the article was included in Journal of Natural Products in 2022.Reference of 29106-49-8 The following contents are mentioned in the article:

Melastoma malabathricum is an Indo-Pacific herb that has been used traditionally to treat numerous ailments such as wounds, dysentery, diarrhea, toothache, and diabetes. The objective of this study was to evaluate the variability of the metabolic profiles of M. malabathricum across its geog. distribution. By employing thin layer chromatog. (TLC), specimens collected from six terrestrial and archipelago regions of Indonesia were analyzed by densitometry for metabolomic fingerprinting anal. combined with chemometric tools: principal component anal. (PCA) and hierarchical cluster anal. (HCA). Two PCAs were identified as PC1 and PC2 with 41.90% and 20.36%, resp. Our results indicate the importance of considering geog. distribution during field-collection efforts since they demonstrate regional metabolic variation in secondary metabolites of M. malabathricum, as illustrated by TLC and their biol. activities. This study involved multiple reactions and reactants, such as (2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8Reference of 29106-49-8).

(2R,2’R,3R,3’R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-[4,8′-bichromane]-3,3′,5,5′,7,7′-hexaol (cas: 29106-49-8) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Reference of 29106-49-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Statistical study of hydrolytic stability in amine-neutralized waterborne polyester resins as a function of monomer composition was written by Jones, Travis E.;McCarthy, Julia M.. And the article was included in Journal of Coatings Technology in 1995.Recommanded Product: 2-Butyl-2-ethylpropane-1,3-diol The following contents are mentioned in the article:

The objective of this study is to demonstrate changes in hydrolytic stability in waterborne coating polyesters as a function of change in glycol and diacid composition In the glycol section of the study, 2-butyl-2-ethyl-1,3-propanediol (BEPD) and 3-hydroxy-2,2-dimethylpropyl 3-hydroxy-2,2-dimethylpropionate were compared. For the diacid section, adipic acid, isophthalic acid, and 1,4-cyclohexanedicarboxylic acid (1,4-CHDA) were examined Aqueous dispersions were subjected to storage at both ambient and elevated temperature Response factors measured over time included mol. weight, pH, appearance, and change in properties of coatings made from the aged dispersions. Results are discussed with reference to accepted hydrolysis rate theories. Results show that inductively stabilized, hydrophobic monomers such as 1,4-CHDA and BEPD produce the most stable waterborne polyesters of the glycols and diacids studied. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Recommanded Product: 2-Butyl-2-ethylpropane-1,3-diol).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Recommanded Product: 2-Butyl-2-ethylpropane-1,3-diol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts