Month: November 2022

Alleviation of postharvest rib-edge darkening and chilling injury of carambola fruit by brassinolide under low temperature storage was written by Duan, Wenhui;Ngaffo Mekontso, Francine;Li, Wen;Tian, Jixin;Li, Jiangkuo;Wang, Qing;Xu, Xiangbin. And the article was included in Scientia Horticulturae (Amsterdam, Netherlands) in 2022.Category: alcohols-buliding-blocks The following contents are mentioned in the article:

Carambola fruit produced in the tropical and subtropical region could easily suffer the postharvest loss in low temperature storage and cold chain logistics owing to the hazard of chilling injury (CI). Here, the effects of brassinolide (BR) on phenolic metabolism, rib-edge darkening and CI of carambola fruit were studied. The present results showed that BR treatment effectively delayed the CI and weight loss, maintained peel color and flesh firmness, and inhibited the increases of electrolyte leakage, malondialdehyde and reactive oxygen species production, induced total phenols and proline accumulation. Moreover, BR treatment raised the activities of antioxidant enzymes and higher content of individual phenolic compounds, inhibited membrane lipid peroxidation and safeguard cellular membrane integrity. This study for the first time demonstrated that BR could alleviate CI in carambola fruit during low temperature storage and cold chain circulation. 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: 29106-49-8Category: alcohols-buliding-blocks).

(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. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Category: alcohols-buliding-blocks

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Visible light promoted polyhalomethylation of alkenes: alkylation and cyclization was written by Wang, Tong-Lin;Zhang, Bo-Sheng;Liu, Jing-Jiang;Liu, Xiao-Jun;Wang, Xi-Cun;Quan, Zheng-Jun. And the article was included in Organic Chemistry Frontiers in 2022.Electric Literature of C10H22O The following contents are mentioned in the article:

A visible light promoted carbochloromethylation of 2-bromomethyl acrylates BrCH₂CH(=CH₂)C(O)OR¹ (R¹ = Me, cyclopentyl, (5S)-1,7,7-trimethylbicyclo[3.1.1]heptan-6-yl, etc.), N-arylmethacrylamides R²N(CH₃)C(O)CH(=CH₂)CH₃ (R² = Ph, pyridin-2-yl, 4-chlorophenyl, etc.), and a series of trihalomethyl substituted allylic acid esters R¹C(O)OCH(=CH₂)CH₂R³ (R³ = trichloromethyl, dichloromethyl, 1,1,2,2-tetrachloroethyl, etc.) and indolone derivatives I (R⁴ = Me, Et, Cl, etc.) and 1,3-dimethyl-3-(2,2,2-trichloroethyl)-1,3-dihydro-2H-benzo[g]indol-2-one/pyrrolo[2,3-b]pyridin-2-one were reported. The reaction used common and inexpensive chloroform and tribromomethane as trihalomethyl reagents R³H, iodobenzene diacetate (PIDA) as an oxidant and Eosin Y as a photocatalyst. 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. 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.Electric Literature of C10H22O

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Diastereoselective Synthesis of Methanopyridoxazocinones was written by Detistov, Oleksandr S.;Panda, Siva S.;Steel, Peter J.;Asiri, Abdullah M.;Hall, C. Dennis;Katritzky, Alan R.. And the article was included in Synlett in 2014.Name: 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride The following contents are mentioned in the article:

Two approaches to the synthesis of oxygen-bridged tetrahydropyridones have been developed. In the first approach, substituted pyrido[4,3-g][1,3]oxazocine derivatives were prepared by a diastereoselective one-pot reactions of substituted 7-azacoumarin derivatives with enolizable ketones and non-bulky primary amines. In the second one, 3-amido-7-azacoumarin derivatives were reacted with enolizable ketones in the presence of a base to form diastereomerically pure pyrido[4,3-g][1,3]oxazocine derivatives The synthesis of the target compounds was achieved by a reaction of the above-mentioned aza-coumarin derivs, 5-(hydroxymethyl)-8-methyl-2-oxo-2H-pyrano[2,3-c]pyridine-3-carboxamide, 5-(hydroxymethyl)-8-methyl-3-[3-(4-methylphenyl)-1,2,4-oxadiazol-5-yl]-2H-pyrano[2,3-c]pyridin-2-one, 5-(hydroxymethyl)-8-methyl-3-(phenylsulfonyl)-2H-pyrano[2,3-c]pyridin-2-one with ketones and amines, amino acid esters. This study involved multiple reactions and reactants, such as 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5Name: 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride).

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. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Name: 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Effect of inoculation method on the quality and nutritional characteristics of low-alcohol kiwi wine was written by Huang, Jintao;Wang, Yaqin;Ren, Yichen;Wang, Xingnan;Li, Hongcai;Liu, Zhande;Yue, Tianli;Gao, Zhenpeng. And the article was included in LWT–Food Science and Technology in 2022.Synthetic Route of C30H26O12 The following contents are mentioned in the article:

In order to prepare the kiwi wine with high nutritional characteristics and low alc. content, the physicochem. properties, organic acids, monomer phenols, water-soluble vitamins and aroma of kiwi wine fermented by Saccharomyces cerevisiae and Wickerhamomyces anomalus in different inoculation method were analyzed. The results showed that the alc. content of the three kiwi wines ranged from 5.3 to 5.5% (volume/volume). The lactic acid content of COF (inoculated with a mix of S. cerevisiae and W. anomalus) low-alc. kiwi wine was 10.99 mg/mL. The quercetin and catechin contents of WSF (sequential inoculation with W. anomalus followed by S. cerevisiae) low-alc. kiwi wine were significantly lower than those in the other kiwi wines. The aroma in COF and WSF low-alc. kiwi wines were predominately from W. anomalus, while those in SWF (sequential inoculation with S. cerevisiae followed by W. anomalus) low-alc. kiwi wine were predominately from S. cerevisiae. 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: 29106-49-8Synthetic Route 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 weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. 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.Synthetic Route of C30H26O12

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Continuous recovery of boron from wastewater with a diol was written by Kwon, Taeok;Hirata, Makoto;Sakuma, Shiro;Hano, Tadashi;Yamagishi, Toshio. And the article was included in Solvent Extraction and Ion Exchange in 2005.Application of 115-84-4 The following contents are mentioned in the article:

Boron stripping was carried out with various alk. solutions A KOH solution was selected as the stripping phase for a continuous operation since the crystals obtained by KOH solution showed the highest boron content. A continuous extraction and stripping operation was conducted by using two mixer-settlers involving an organic solvent of 2-butyl-2-ethyl-1,3-propanediol in 2-ethylhexanol. A long-term continuous operation with a dilute boron solution was carried out steadily for >500 h. Over 0.15 m³ of wastewater was successfully treated, and boron was concentrated to 18 kg/m³. A continuous recovery of boron as crystals was successfully performed at a high boron concentration of 0.32 kg/m³. The crystallization of boron took place at its supersaturated concentration of 33 kg/m³ when a 56.1 kg/m³ KOH solution was used as the stripping phase, and the pH of the stripping phase was maintained at 10.5. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Application of 115-84-4).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) 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. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Application of 115-84-4

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kinetics and mechanism of the condensation of pyridoxal hydrochloride with L-tryptophan and D-tryptophan, and the chemical transformation of their products was written by Pishchugin, F. V.;Tuleberdiev, I. T.. And the article was included in Russian Journal of Physical Chemistry A in 2017.Related Products of 65-22-5 The following contents are mentioned in the article:

The kinetics and mechanism of interaction between pyridoxal and L-tryptophan, D-tryptophan, and their derivatives are studied. It is found that condensation reactions proceed via three kinetically distinguishable stages: (1) the rapid intraplanar addition of the NH₂ groups of the amino acids to pyridoxal with the formation of amino alcs.; (2) the rotational isomerism of amino alc. fragments with their subsequent dehydration and the formation of a Schiff base with a specific configuration; (3) the abstraction of α-hydrogen in the product of condensation of pyridoxal with L-tryptophan, or the abstraction of CO₂ in the product of condensation of pyridoxal with D-tryptophan with the formation of quinoid structures, hydrolysis of which results in the preparation of pyridoxamine and keto acid or pyridoxal and tryptamine, resp. Schiff bases resistant to further chem. transformations are formed in the reaction with tryptophan Me ester. 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. 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. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Related Products of 65-22-5

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Structural Relaxation and Viscoelasticity of a Higher Alcohol with Mesoscopic Structure was written by Yamaguchi, Tsuyoshi;Saito, Makina;Yoshida, Koji;Yamaguchi, Toshio;Yoda, Yoshitaka;Seto, Makoto. And the article was included in Journal of Physical Chemistry Letters in 2018.Application of 106-21-8 The following contents are mentioned in the article:

This work studied the slow dynamics of liquids with mesoscopic structure and its relation to shear viscosity. Quasielastic scattering measurements were made on a liquid higher alc., 3,7-dimethyl-1-octanol, using γ-ray time-domain interferometry at a synchrotron radiation facility, SPring-8. The quasielastic scattering spectra were measured to determine the structural relaxation at two wavenumbers of the prepeak and the main peak of the static structure factor. It was found that relaxation at the prepeak is more than 10 times slower than that at the main peak. Compared with the viscoelastic spectrum, which exhibits bimodal relaxation, the relaxations at the prepeak and the main peak were shown to correspond to the slower and faster modes of the viscoelastic relaxation, resp. This indicates that the dynamics of the mesoscopic structure represented as the prepeak contributes to the shear viscosity through the slowest mode of the viscoelastic relaxation. 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. 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. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Application of 106-21-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Identification of small molecules that strongly inhibit bacterial quorum sensing using a high-throughput lipid vesicle lysis assay was written by Polaske, Thomas J.;Gahan, Curran G.;Nyffeler, Kayleigh E.;Lynn, David M.;Blackwell, Helen E.. And the article was included in Cell Chemical Biology in 2022.Recommanded Product: 923-61-5 The following contents are mentioned in the article:

Strategies to both monitor and block bacterial quorum sensing (QS), and thus associated infections, are of significant interest. We developed a straightforward assay to monitor biosurfactants and lytic agents produced by bacteria under the control of QS. The method is based on the lysis of synthetic lipid vesicles containing the environmentally sensitive fluorescent dye calcein. This assay allows for the in situ screening of compounds capable of altering biosurfactant production by bacteria, and thereby the identification of mols. that could potentially modulate QS pathways, and avoids the constraints of many of the cell-based assays in use today. Application of this assay in a high-throughput format revealed five mols. capable of blocking vesicle lysis by S. aureus. Two of these compounds were found to almost completely inhibit agr-based QS in S. aureus and represent the most potent small-mol.-derived QS inhibitors reported in this formidable pathogen. This study involved multiple reactions and reactants, such as (2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5Recommanded Product: 923-61-5).

(2R)-3-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-diyl dipalmitate (cas: 923-61-5) 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: 923-61-5

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Proanthocyanidin B2 and transglutaminase synergistically improves gel properties of oxidized myofibrillar proteins was written by Zhang, Daojiu;Yang, Xu;Wang, Yichun;Wang, Biao;Wang, Shaoyu;Chang, Jinyang;Liu, Suwen;Wang, Hao. And the article was included in Food Chemistry in 2022.Computed Properties of C30H26O12 The following contents are mentioned in the article:

We investigated the roles of Proanthocyanidin B2 (PCB2) and transglutaminase (TGase) in improving myofibrillar protein (MP) gel properties. TGase and PCB2 increased the surface hydrophobicity (41%) and water holding capacity (WHC) (16%) of the MP. Secondary and tertiary structures of MP were resp. analyzed by Fourier transform IR spectroscopy (FTIR) and fluorescence spectrophotometry. The content of α -helix in MP was found to be increased while its fluorescence intensity decreased upon the addition of PCB2 and TGase. The addition of PCB2 and TGase resulted in formation of a dense MP network structure as revealed by SEM (SEM). Low-field NMR (LF-NMR) and magnetic resonance imaging (MRI) anal. showed that immobilized water levels in the MP gel were markedly increased while the amount of free water was significantly decreased after PCB2 and TGase addition These findings indicate that a combination of PCB2 and TGase are potential additives for meat products. 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: 29106-49-8Computed Properties 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. 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.Computed Properties of C30H26O12

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Pd^II-Catalyzed Site-selective β- and γ-C(sp³)-H Arylation of Primary Aldehydes Controlled by Transient Directing Groups was written by Li, Yi-Hao;Ouyang, Yuxin;Chekshin, Nikita;Yu, Jin-Quan. And the article was included in Journal of the American Chemical Society in 2022.Electric Literature of C10H22O The following contents are mentioned in the article:

Pd(II)-catalyzed site-selective β- and γ-C(sp³)-H arylation of primary aldehydes C(R)(R¹)(R²)CH₂CHO (R = Me, cyclohexylmethyl, 2,2-dimethylpropyl, etc.; R¹ = H, Me; R² = H, Me) and 2-cyclohexylacetaldehyde is developed by rational design of L,X-type transient directing groups (TDG). External 2-pyridone ligands such as (5-nitro-3-(trifluoromethyl)-2(1H)-pyridinone) are identified to be crucial for the observed reactivity. By minimizing the loading of acid additives, the ligand effect is enhanced to achieve high reactivities of the challenging primary aldehyde substrates. Site selectivity can be switched from the proximate to the relatively remote position by changing the bite angle of TDG to match the desired palladacycle size. Exptl. and computational investigations support this rationale for designing TDG to potentially achieve remote site-selective C(sp³)-H functionalizations. 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. 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. 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.Electric Literature of C10H22O

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts