Month: November 2022

Nonionic diol-modified UV-curable polyurethane dispersions: preparation and characterization was written by Mishra, Vikash K.;Patel, Kalpesh I.. And the article was included in Journal of Dispersion Science and Technology in 2015.Application In Synthesis of 2-Butyl-2-ethylpropane-1,3-diol The following contents are mentioned in the article:

A series of novel water-based UV-curable polyurethane dispersions (UV-PUDs) were synthesized by acetone process with anionic and nonionic stabilization in combination, which can address the requirements of volatile organic compounds (VOCs) directives for both indoor and outdoor applications. The nonionic stabilization was introduced in structure to improve electrolyte stability, shear stability, freeze/thaw stability, etc. The structure of UV-PUDs were characterized by Fourier transform IR spectroscopy. Mol. weight and mol. weight distribution was characterized by gel permeation chromatog. Particle size was characterized by particle size analyzer. The thermal stability of the cured films were characterized by thermogravimetric anal., and their performance properties were measured by standard methods. The obtained dispersions were stable for >8 mo. It was found that both combinations of anionic and nonionic provide better colloidal stability against electrolytes and shear stability along with comparable performance properties. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Application In Synthesis of 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. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Application In Synthesis of 2-Butyl-2-ethylpropane-1,3-diol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Study of the degradation of epoxy resins used in spacecraft components by thermogravimetry and fast pyrolysis was written by Torres-Herrador, Francisco;Eschenbacher, Andreas;Blondeau, Julien;Magin, Thierry E.;Geem, Kevin M. Van. And the article was included in Journal of Analytical and Applied Pyrolysis in 2022.Synthetic Route of C13H12O2 The following contents are mentioned in the article:

Predicting the demisability upon re-entry of space debris objects is of great importance due to the threat these objects pose if they were to fall in an inhabited area. In particular, carbon/epoxy composite materials have been found on Earth in several occasions. Accurate models to assess the demisability of such components require, in particular, detailed thermal degradation data for the epoxy resin. In this work, we analyze a resin used to manufacture such components, using thermogravimetric anal. (TGA), organic elemental anal., and pyrolysis coupled to comprehensive two-dimensional gas chromatog. The epoxy resin rapidly decomposed in a relatively narrow range of temperatures (300-400 ^oC) in more than 70 different volatile products. A one-step kinetic model is proposed for the pyrolysis of epoxy based on thermogravimetry observations. The information on the species and elemental composition can be used to develop more accurate material degradation models for predicting the demisability upon re-entry of space debris. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Synthetic Route of C13H12O2).

4,4′-Methylenediphenol (cas: 620-92-8) 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.Synthetic Route of C13H12O2

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Evaluation of digestibility differences for apple polyphenolics using in vitro elderly and adult digestion models was written by Shang, Ya-Fang;Miao, Jun-Hao;Zeng, Jia;Zhang, Tian-Hua;Zhang, Rui-Ming;Zhang, Bing-Yan;Wang, Chao;Ma, Yi-Long;Niu, Xiang-Li;Ni, Xiao-Long;Wei, Zhao-Jun. And the article was included in Food Chemistry in 2022.Formula: C30H26O12 The following contents are mentioned in the article:

We evaluated the in vitro digestibility of apple polyphenols mimicking elderly and adult digestion models (dynamic and static systems). The digestibility of total apple polyphenols in small intestine was much higher in the adult dynamic system (62μg/100 g fresh apple) compared to the static system (20μg/100 g fresh apple) and elderly dynamic digestion conditions (33μg/100 g fresh apple). Elderly in vitro static digestion showed better antioxidant activity than the adult system (·OH and ABTS+ methods). Thus, the in vitro dynamic digestion system can more truly reflect the digestion of apple polyphenols than static digestion system. Moreover, elderly digestion conditions neg. influenced the digestibility of apple polyphenols including chlorogenic acid, epicatechin, phlorizin, rutin, phloretin, hyperoside, proanthocyanidin B2, and quercetin. Hence, appropriate selection of in vitro digestion models for elderly is a prerequisite to exploring the digestibility of phytochems. for the development of functional food products for elderly. 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: 29106-49-8Formula: C30H26O12).

(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. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Formula: C30H26O12

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Effect of high-pressure processing on the bioaccessibility of phenolic compounds from cloudy hawthorn berry (Crataegus pinnatifida) juice was written by Lou, Xinman;Xiong, Juanjuan;Tian, Huaixiang;Yu, Haiyan;Chen, Chen;Huang, Juan;Yuan, Haibin;Hanna, Milford;Yuan, Long;Xu, Huaide. And the article was included in Journal of Food Composition and Analysis in 2022.SDS of cas: 29106-49-8 The following contents are mentioned in the article:

The impact of high-pressure (HPP, 300/600 MPa for 2 and 6 min) and thermal (TP, 65°C/30 min) processing on phenolic profiles from cloudy hawthorn berry juice (CHBJ) as well as their potential bioaccessibility during in vitro digestion were investigated. Both HPP and TP enhanced phenolics concentration due to increased extractability, indicating CHBJ provided a good matrix for protecting phenolics from degradation during food processing. Importantly, HPP significantly enhanced phenolics bioaccessibility (35.12%) compared to untreated juice (30.54%) (p < 0.05), probably due to the release of bound phenolics. This might be attributed to the reinforced interaction of phenolics with other matrix compounds induced by HPP which provided effective protection for phenolics with a sustained digestive release. Addnl., 70.07-152.92μg/100 mL of phenolics were available for large-intestine health. These findings provide basic knowledge on HPP application for designing functional juice with improved bioaccessibility of antioxidant-phenolics. 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: 29106-49-8SDS of cas: 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. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. 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.SDS of cas: 29106-49-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Old dog, new tricks: Polydatin as a multitarget agent for current diseases was written by Ye, Penghui;Wu, Hefei;Jiang, Yinxiao;Xiao, Xiaolin;Song, Dan;Xu, Nuo;Ma, Xiao;Zeng, Jinhao;Guo, Yaoguang. And the article was included in Phytotherapy Research in 2022.Application In Synthesis of (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol The following contents are mentioned in the article:

A review. Polydatin (PD) is a natural single-crystal product that is primarily extracted from the traditional plant Polygonum cuspidatum Sieb. et Zucc. Early research showed that PD exhibited a variety of biol. activities. PD has attracted increasing research interest since 2014, but no review comprehensively summarized the new findings. A great gap between its biol. activities and drug development remains. It is necessary to summarize new findings on the pharmacol. effects of PD on current diseases. We propose that PD will most likely be used in cardiac and cerebral ischemia/reperfusion-related diseases and atherosclerosis in the future. The present work classified these new findings according to diseases and summarized the main effects of PD via specific mechanisms of action. In summary, we found that PD played a therapeutic role in a variety of diseases, primarily via five mechanisms: antioxidative effects, antiinflammatory effects, regulation of autophagy and apoptosis, maintenance of mitochondrial function, and lipid regulation. This study involved multiple reactions and reactants, such as (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6Application In Synthesis of (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol).

(2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. 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 In Synthesis of (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

A programmable encapsulation system improves delivery of therapeutic bacteria in mice was written by Harimoto, Tetsuhiro;Hahn, Jaeseung;Chen, Yu-Yu;Im, Jongwon;Zhang, Joanna;Hou, Nicholas;Li, Fangda;Coker, Courtney;Gray, Kelsey;Harr, Nicole;Chowdhury, Sreyan;Pu, Kelly;Nimura, Clare;Arpaia, Nicholas;Leong, Kam W.;Danino, Tal. And the article was included in Nature Biotechnology in 2022.Recommanded Product: (2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triol The following contents are mentioned in the article:

Living bacteria therapies have been proposed as an alternative approach to treating a broad array of cancers. In this study, we developed a genetically encoded microbial encapsulation system with tunable and dynamic expression of surface capsular polysaccharides that enhances systemic delivery. Based on a small RNA screen of capsular biosynthesis pathways, we constructed inducible synthetic gene circuits that regulate bacterial encapsulation in Escherichia coli Nissle 1917. These bacteria are capable of temporarily evading immune attack, whereas subsequent loss of encapsulation results in effective clearance in vivo. This dynamic delivery strategy enabled a ten-fold increase in maximum tolerated dose of bacteria and improved anti-tumor efficacy in murine models of cancer. Furthermore, in situ encapsulation increased the fraction of microbial translocation among mouse tumors, leading to efficacy in distal tumors. The programmable encapsulation system promises to enhance the therapeutic utility of living engineered bacteria for cancer. This study involved multiple reactions and reactants, such as (2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triol (cas: 367-93-1Recommanded Product: (2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triol).

(2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triol (cas: 367-93-1) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. 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.Recommanded Product: (2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kinetics and Mechanism of the Interaction and Transaldimination of Products of Condensation of Pyridoxal Hydrochloride with L-α-, D-α-, and β-Alanines was written by Pishchugin, F. V.;Tuleberdiev, I. T.. And the article was included in Russian Journal of Physical Chemistry A in 2021.Recommanded Product: 65-22-5 The following contents are mentioned in the article:

The kinetics and mechanism of the condensation and transaldimination of products of pyridoxal condensation with L-α-, D-α-, and β-alanines are studied via UV spectroscopy and polarimetry. It is found that pyridoxal hydrochloride interacts stereospecifically with L-α- and D-α-alanines, accompanied by the formation of intermediate products with a strictly defined structure that promote the elimination of hydrogen atoms (with L-α-alanine) or CO2 (with D-α-alanine) and the subsequent formation of a quinoid structure whose hydrolysis yields the final products. The reactions of transaldimination between pyridoxalidene-β-alanine, pyridoxalidene-L-α-, pyridoxalidene-D-α-alanines, and L-α- and D-α-alanines are studied. It is shown that transaldimination proceeds in two stages: the addition of L-α- and D-α-amino acids to Schiff bases with the formation of N-acetals of a strictly defined structure, and the cleavage of one of the amino acids with the formation of new Schiff bases. Schemes are proposed for the mechanisms of the studied reactions. This study involved multiple reactions and reactants, such as 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5Recommanded Product: 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.Recommanded Product: 65-22-5

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Rapid fingerprinting of extractable and non-extractable polyphenols from tropical fruit peels using direct analysis in real time coupled to orbitrap mass spectrometry was written by Dominguez-Rodriguez, Gloria;Marina, Maria Luisa;Plaza, Merichel. And the article was included in Food Chemistry in 2022.Electric Literature of C30H26O12 The following contents are mentioned in the article:

A simple and rapid direct anal. in real-time coupled to high-resolution mass spectrometry (DART-HRMS) methodol. was developed to generate the extractable and non-extractable polyphenols (NEPs) fingerprint for four different passion fruits, G. mangostana, and A. squamosa peels as case-study to investigate the influence of alk. hydrolysis and enzymic-assisted extraction (EAE) on the recovery of NEPs. The extraction residue obtained after these treatments was also analyzed by DART-HRMS. Data compiled from DART-HRMS mass spectra were processed with principal component anal. to discriminate among the different treatments. EAE with Depol enzyme enabled to obtain NEPs with the highest signal intensity in DART-HRMS anal. from all peels except for P. edulis and A. squamosa peels. In these two cases, NEPs were better extracted by EAE with Promod enzyme and alk. hydrolysis. Results showed that the applied treatments were efficient to extract NEPs since their signal intensities in the extraction residues were very low compared with their extracts 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: 29106-49-8Electric Literature of C30H26O12).

(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. 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. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Electric Literature of C30H26O12

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Multidimensional in silico strategy for identification of natural polyphenols-based SARS-CoV-2 main protease (M^pro) inhibitors to unveil a hope against COVID-19 was written by Adem, Sevki;Eyupoglu, Volkan;Ibrahim, Ibrahim M.;Sarfraz, Iqra;Rasul, Azhar;Ali, Muhammad;Elfiky, Abdo A.. And the article was included in Computers in Biology and Medicine in 2022.COA of Formula: C20H22O8 The following contents are mentioned in the article:

SARS-CoV-2, a rapidly spreading new strain of human coronavirus, has affected almost all the countries around the world. The lack of specific drugs against SARS-CoV-2 is a significant hurdle towards the successful treatment of COVID-19. Thus, there is an urgent need to boost up research for the development of effective therapeutics against COVID-19. In the current study, we investigated the efficacy of 81 medicinal plant-based bioactive compounds against SARS-CoV-2 Mpro by using various in silico techniques. The interaction affinities of polyphenolic compounds towards SARS-CoV-2 Mpro was assessed via intramol. (by Quantum Mechanic), intermol. (by Mol. Docking), and spatial (by Mol. Dynamic) simulations. Our obtained result demonstrate that Hesperidin, rutin, diosmin, and apiin are most effective compounds agents against SARS-CoV-2 Mpro as compared to Nelfinavir (pos. control). This study will hopefully pave a way for advanced exptl. research to evaluate the in vitro and in vivo efficacy of these compounds for the treatment of COVID-19. This study involved multiple reactions and reactants, such as (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6COA of Formula: C20H22O8).

(2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. 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.COA of Formula: C20H22O8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Effects of terpene alcohol dopant on the morphology and electro-optical properties of polymer-dispersed liquid-crystal composite films was written by Huang, Junyi;Hu, Wei;Yu, Meina;Ren, Yunxiao;Zhang, Lanying;Yang, Huai. And the article was included in Polymers for Advanced Technologies in 2021.Application of 106-21-8 The following contents are mentioned in the article:

Terpenes are a large class of hydrocarbon compounds derived from isoprene, which can be produced by plants or emitted by insects. Terpene alcs. contain double bonds that may affect the addition polymerization, and hydroxyl groups that can promote the network crosslinking d. during the formation of polymer-dispersed liquid-crystal (PDLC) composite films. In this work, effects of different terpene alc. dopant on the morphol. and electro-optical properties of PDLC films are systematically investigated. It is found that the appropriate dopant amount of geraniol (GOL) has the superior effect to improve the electro-optical performance. The optimum addition amount is at 3 wt%, where the transmittance vs. voltage curve gets steeper, the driving voltage of PDLC film reduces from 74 to 32 V and meanwhile the contrast ratio maintains at a relatively high level (123). Thus, this work not only broadens the application scope of the natural spices but also provides a new strategy to reduce the driving voltage of PDLC films for practical applications. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Application of 106-21-8).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. 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.Application of 106-21-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts