Tag: 100-200

The effect of inoculation Leuconostoc mesenteroides and Lactiplantibacillus plantarum on the quality of Pleurotus eryngii Jiaosu was written by Jiang, Jikang;Li, Wenxiang;Yu, Shuping. And the article was included in LWT–Food Science and Technology in 2022.SDS of cas: 149-32-6 This article mentions the following:

To investigate the effects of inoculating Leuconostoc mesenteroides or Lactiplantibacillus plantarum on the changes in metabolites in Pleurotus eryngii Jiaosu, a fermented plant extract rich in nutrients and bioactive compounds, the physicochem. and metabolite features of the treated Jiaosu were compared to those of spontaneously-fermented Jiaosu. The physicochem. features of Jiaosu fermented with Leuconostoc mesenteroides or Lactiplantibacillus plantarum were superior to spontaneously-fermented Jiaosu. An Partial Least Squares Discrimination Anal. (PLS-DA) score plot showed a clear difference in metabolites between spontaneous fermentation group (SFG) and inoculated Lactiplantibacillus plantarum group (LPG). Metabolites were remarkably different between LPG and SFG on the first day of fermentation The differential metabolites included sugars, acids and alcs. This study highlights the applicability of GC-MS based metabolomics as a tool to monitor Jiaosu fermentation In the experiment, the researchers used many compounds, for example, (2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6SDS of cas: 149-32-6).

(2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6) 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. 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.SDS of cas: 149-32-6

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Imidazolium ion tethered TsDPENs as efficient water-soluble ligands for rhodium catalyzed asymmetric transfer hydrogenation of aromatic ketones was written by Kang, Guowei;Lin, Silong;Shiwakoti, Atul;Ni, Bukuo. And the article was included in Catalysis Communications in 2014.Category: alcohols-buliding-blocks This article mentions the following:

An imidazolium ion tethered TsDPEN has been synthesized readily and used as a water-soluble ligand for [Cp*RhCl₂]₂ catalyzed asym. transfer hydrogenation (ATH) of aromatic ketones in water. This process provided secondary alcs. in moderate to excellent conversions (up to 100%) with high enantioselectivity (up to 98% ee) under mild reaction conditions without adding any surfactants. The catalytic system is highly effective with the substrate to catalyst (S/C) ratio of 500 and low hydride donor loading of 1.5 equivalent of HCO₂Na. The procedure presented is simple and makes this method suitable for practical use. The synthesis of the target compounds was achieved using [[[[[(amino)diphenylethyl]amino]sulfonyl]phenyl]methyl]imidazolium salt and a rhodium complex as catalyst combination. The catalyst was prepared using N-[(1S,2S)-2-amino-1,2-diphenylethyl]carbamic acid 1,1-dimethylethyl ester and imidazole derivatives as starting materials. Under optimized conditions di-渭-(chloro)dichlorobis[(1,2,3,4,5-畏)-1,2,3,4,5-pentamethyl-2,4-cyclopentadien-1-yl]dirhodium was used as a catalyst. Transfer hydrogenation of 1-(phenyl)ethanone (acetophenone) derivatives gave (伪S)-伪-(methyl)benzenemethanol (chiral benzyl alc.) derivatives In the experiment, the researchers used many compounds, for example, (S)-1-(2-Fluorophenyl)ethanol (cas: 171032-87-4Category: alcohols-buliding-blocks).

(S)-1-(2-Fluorophenyl)ethanol (cas: 171032-87-4) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R鈥昈鈭?. For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. 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.Category: alcohols-buliding-blocks

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Thermo-sensitive ionic hydrogels synthesis via post quaternization cross-linking: A highly efficient reusable catalytic thermo-responsive nanoreactors was written by Maddahzadeh-Darini, Nastaran;Ghorbanloo, Massomeh;Mori, Masami;Yahiro, Hidenori. And the article was included in Applied Organometallic Chemistry in 2022.Application of 873-76-7 This article mentions the following:

Radical polymerization reactions were employed to synthesize thermo-responsive poly(N-isopropylacrylamide-co-1-vinylimidazole), p (NIPAM-co-VIm), hydrogels at room temperature A postquaternized crosslinking strategy was reported to fabricate thermo-sensitive quaternized-p (NIPAM-co-VIm) ionic hydrogels, Q-p (NIPAm-co-VIm). Combination of methods (high-resolution XPS, dynamic light scattering, and at. absorption spectroscopy) was employed to characterize the composite material. Following the concept of a “green chem.,” the oxidation of alcs./olefins was carried out in aqueous solution by using nanocomposites, p (NIPAM-co-VIm) and Q-p (NIPAM-co-VIm). It was found that the catalytic activity of the metal nanocomposite can be modulated by the lower critical solution temperature (LCST) of particles. The catalyst showed improved catalytic activity above LCST. Quaternized composites showed higher catalytic activity than unquaternized counterparts, due to their high hydrophobicity, effective interactions between substrates and catalyst, and high flexibility. In addition, we demonstrated that the catalytic activity of the nanocomposites can be tuned by the volume phase transition within the hydrogel by using the catalytic reduction of 4-nitrophenol/nitrobenzene, NP/NB, as the hydrophilic/hydrophobic substrates model. For 4-NP, with an increase in temperature from 25掳C to 35掳C (<LCST), the apparent rate constant values had a downward trend. On the contrary, for NB, this value had an upward trend. These results revealed that different changes in rate constant for 4-NP and NB with temperature should be attributed to significant differences in NP/NB affinity to interact with Ag-NPs in the hydrogel. Moreover, the catalysts could efficiently be recycled four times without losing their quality. FT-IR spectra and at. absorption spectroscopy also proved that the catalysts were recyclable, durable, and leaching-resistant. In the experiment, the researchers used many compounds, for example, (4-Chlorophenyl)methanol (cas: 873-76-7Application of 873-76-7).

(4-Chlorophenyl)methanol (cas: 873-76-7) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. 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.Application of 873-76-7

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Effect of pulse light on the quality of refrigerated (4掳C) large yellow croaker (Pseudosciaena crocea) was written by Zhang, Jianyou;Zhou, Guangcheng;Ji, Shengqiang;Zou, Ligen;Liang, Jianqin;Walayat, Noman;Chen, Jiang;Fei, Lyu;Ding, Yuting. And the article was included in LWT–Food Science and Technology in 2022.Category: alcohols-buliding-blocks This article mentions the following:

This study mainly analyzed the changes of quality of large yellow croaker treated by pulsed light during storage at 4掳C by studying TVC, TVB-N, TBARS, color, texture, sensory evaluation and volatile substances. The large yellow croaker was treated with different intensities (100, 200, 300, 400 and 500 J/pulse) of PL for 30 pulses. The results showed that the initial sterilization efficiency of 300 J/pulse PL group could reach to 86.27 卤 4.32%. And the TVB-N and TBARS increased at a slower rate in the 300 J/pulse group compared to the control group during storage. Furthermore, the L* and a* color parameters of 300 J/pulse group decreased more slowly than the control group. Besides that, the texture and the sensory evaluation score were also better than control group at the same storage time. The shelf life of large yellow croaker could be extended by 2-3 days after PL treatment. However, the 500 J/pulse PL group had increased lipid oxidation and resulted in some sulfur and metallic odor. To sum up, the PL technol. presented the potential effect to improve the shelf life of large yellow croaker, but it is necessary to further optimize the processing conditions of PL. In the experiment, the researchers used many compounds, for example, Oct-1-en-3-ol (cas: 3391-86-4Category: alcohols-buliding-blocks).

Oct-1-en-3-ol (cas: 3391-86-4) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Category: alcohols-buliding-blocks

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Vibrational dynamics of glass forming: 2-phenylbutan-1-ol (BEP), 2-(trifluoromethyl)phenethyl alcohol (2TFMP) and 4-(trifluoromethyl)phenethyl alcohol (4TFMP) in their thermodynamic phases was written by Juszynska-Galazka, Ewa;Zajac, Wojciech;Saito, Kazuya;Yamamura, Yasuhisa;Jurus, Natalia. And the article was included in Phase Transitions in 2018.Reference of 2968-93-6 This article mentions the following:

The complex polymorphism and vibrational dynamics of three glass-forming single-phenyl-ring alcs. (with and without fluorine atoms) have been studied by complementary methods. Glass of isotropic liquid phase and cold crystallization of metastable supercooled liquid state were detected. Temperature investigations of vibrational motions show important role of hydrogen bonds in interactions between mols. Theor. calculations for isolated mol., as well as dimer- and tetramer-type aggregates of non-covalently bound mols., allow for a good description of exptl. spectra. Intermol. interactions of mols. with ortho and para positions of CF₃ group in Ph ring have a similar influence on the spectra observed In the experiment, the researchers used many compounds, for example, 2-(4-(Trifluoromethyl)phenyl)ethanol (cas: 2968-93-6Reference of 2968-93-6).

2-(4-(Trifluoromethyl)phenyl)ethanol (cas: 2968-93-6) 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. 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.Reference of 2968-93-6

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Hydroxymethylpyridine containing half-sandwich complexes of Rh(III), Ir(III) or Ru(II) was written by Carmona, Daniel;Lamata, Pilar;Sanchez, Antonio;Pardo, Pilar;Rodriguez, Ricardo;Ramirez, Paola;Lahoz, Fernando J.;Garcia-Orduna, Pilar;Oro, Luis A.. And the article was included in Dalton Transactions in 2014.Recommanded Product: 6-Methyl-2-pyridinemethanol This article mentions the following:

Complexes of the formula [(畏ⁿ-ring)M(NOH){(R)-P1}][SbF₆]₂ ((畏ⁿ-ring)M = (畏⁵-C₅Me₅)Rh, (畏⁵-C₅Me₅)Ir, (畏⁶-p-MeC₆H₄ⁱPr)Ru; NOH = hydroxymethylpyridine ligand; {(R)-P1} = (R)-monophos) have been prepared from the corresponding dimers [{(畏ⁿ-ring)MCl}₂(渭-Cl)₂] through routes involving [(畏⁵-C₅Me₅)RhCl₂{(R)-P1}] or [(畏ⁿ-ring)MCl(NOH)][SbF₆] intermediates. The new complexes have been characterized by anal. and spectroscopic means, including the determination of the crystal structures of [(畏⁵-C₅Me₅)IrCl₂{(R)-P1}] (1b), [(畏⁶-p-MeC₆H₄iPr)RuCl(NOH-1)][SbF₆] (2c), [(畏⁵-C₅Me₅)IrCl{(R)-NOH-2}][SbF₆] ((R)-3b), [(畏⁵-C₅Me₅)Rh(NOH-1){(R)-P1}][SbF₆]₂ (4a) and [(畏⁶-p-MeC₆H₄iPr)Ru{(R)-NOH-2}{(S)-P1}][SbF₆]₂ ((R)-5c’) by x-ray diffractometric methods. From NMR and x-ray data, the absolute configuration of the new chiral compounds was established. In the experiment, the researchers used many compounds, for example, 6-Methyl-2-pyridinemethanol (cas: 1122-71-0Recommanded Product: 6-Methyl-2-pyridinemethanol).

6-Methyl-2-pyridinemethanol (cas: 1122-71-0) 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.Recommanded Product: 6-Methyl-2-pyridinemethanol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Antiproliferative activity and SARs of caffeic acid esters with mono-substituted phenylethanols moiety was written by Xie, Jin;Yang, Fengzhi;Zhang, Man;Lam, Celine;Qiao, Yixue;Xiao, Jia;Zhang, Dongdong;Ge, Yuxuan;Fu, Lei;Xie, Dongsheng. And the article was included in Bioorganic & Medicinal Chemistry Letters in 2017.COA of Formula: C9H9F3O This article mentions the following:

A series of caffeic acid phenylethyl ester (CAPE) derivatives with mono-substituted phenylethanols moiety were synthesized and evaluated by MTT assay on growth of 4 human cancer cell lines (Hela, DU-145, MCF-7 and ECA-109). The substituent effects on the antiproliferative activity were systematically investigated for the first time. It was found that electron-donating and hydrophobic substituents at 2′-position of phenylethanol moiety could significantly enhance CAPE’s antiproliferative activity. 2′-Propoxyl derivative, as a novel caffeic acid ester, exhibited exquisite potency (IC₅₀ = 0.4 卤 0.02 & 0.6 卤 0.03 渭M against Hela and DU-145 resp.). In the experiment, the researchers used many compounds, for example, 2-(4-(Trifluoromethyl)phenyl)ethanol (cas: 2968-93-6COA of Formula: C9H9F3O).

2-(4-(Trifluoromethyl)phenyl)ethanol (cas: 2968-93-6) 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. 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.COA of Formula: C9H9F3O

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Inhibition of cholesterol biosynthesis promotes the production of 1-octen-3-ol through mevalonic acid was written by Jin, Yuxi;Yuan, Xiaoya;Liu, Jianfeng;Wen, Jie;Cui, Huanxian;Zhao, Guiping. And the article was included in Food Research International in 2022.COA of Formula: C8H16O This article mentions the following:

1-Octen-3-ol makes an important contribution to meat flavor. The goal of this study was to identify the metabolic pathways of 1-octen-3-ol formation in meat. We found 218 metabolites associated with 1-octen-3-ol content in 20 samples of chicken meat, including mevalonic acid (pos. correlation), corticosterone (neg. correlation), and other lipids and lipid-like mols. Among these 218 metabolites, 17 metabolites were differentially expressed in different 1-octen-3-ol content groups. Similarly, 37 genes were not only differentially expressed, but were significantly correlated with 1-octen-3-ol. The regulation of HSP90AA1, PTPN9, and other genes converted more mevalonic acid to 1-octen-3-ol. Meanwhile, mevalonic acid, a key material in the synthesis of cholesterol, caused a decrease in corticosterone content, affecting ZNF414 and KLF15 gene expression. These findings reveal the effect of cholesterol on 1-octen-3-ol content, as well as a pos. regulation of mevalonic acid on the production of 1-octen-3-ol in chicken meat. In the experiment, the researchers used many compounds, for example, Oct-1-en-3-ol (cas: 3391-86-4COA of Formula: C8H16O).

Oct-1-en-3-ol (cas: 3391-86-4) 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.COA of Formula: C8H16O

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Three Different Types of Asymmetric Polymerization of Aryl Isocyanides by Using Simple Rare-Earth Metal Trialkyl Precursors was written by Gao, Feng;Chen, Jupeng;Cao, Qingbin;Li, Qiaozhen;Zheng, Jie;Li, Xiaofang. And the article was included in Macromolecules (Washington, DC, United States) in 2022.Synthetic Route of C10H20O This article mentions the following:

Three different types of asym. polymerization of aryl isocyanides containing helix-sense-selective polymerization of achiral aryl isocyanides with D/L-lactide as the chiral additive, asym. induced polymerization of chiral aryl isocyanides as well as helix-sense-selective copolymerization of chiral and achiral aryl isocyanides with chiral amplification have successfully been implemented by using two kinds of achiral monocation [LnR₂(THF)_n]⁺ or dication species [LnR(THF)_n]²⁺in situ generated from two series of simple rare-earth metal trialkyl precursors (LnR₃(THF)_n, Ln = Sc, Lu, Y; R = -CH₂SiMe₃, -o-CH₂C₆H₄NMe₂; n = 0, 2). As a result, various optically active poly(aryl isocyanide)s having one-handed helical conformations and/or aggregation-induced emission (AIE) nature are prepared A possible coordination mechanism is also proposed. Such a catalytic system affords a new design concept of simple, efficient, and superior rare-earth metal catalysts for asym. polymerization of functional isocyanides. In the experiment, the researchers used many compounds, for example, (1R,2S,5R)-2-Isopropyl-5-methylcyclohexanol (cas: 2216-51-5Synthetic Route of C10H20O).

(1R,2S,5R)-2-Isopropyl-5-methylcyclohexanol (cas: 2216-51-5) 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. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Synthetic Route of C10H20O

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Halophilic bacteria as starter cultures: A new strategy to accelerate fermentation and enhance flavor of shrimp paste was written by Yu, Jing;Lu, Kuan;Zi, Jiwei;Yang, Xihong;Zheng, Zuoxing;Xie, Wancui. And the article was included in Food Chemistry in 2022.Application In Synthesis of Oct-1-en-3-ol This article mentions the following:

Retaining the traditional flavor while shortening the fermentation cycle is the current research focus for shrimp paste fermentation technol. The present study investigated the effect of combined use of halophilic bacteria as starters on the sensory and flavor characteristics of rapidly fermented shrimp paste. Sensory evaluation indicated that the starter-inoculated samples had high texture, appearance, and overall quality scores. Headspace gas chromatog.-ion mobility spectrometry/mass spectrometry (HS-GC-IMS/MS) identified 95 volatile compounds, the fingerprint profiles of the starter-inoculated samples were similar to those of the traditional sample. Notably, the content of benzaldehyde, phenylethylaldehyde, and 3-methylbutyraldehyde increased significantly in the starter-inoculated samples (p < 0.05), which may provide an intense malt, caramel, and pleasant odor. Although the content of certain flavor substances in the starter-inoculated samples was lower than those of traditional sample, the use significantly reduced the fermentation time and mimicked the flavor profile of traditional shrimp paste to some extent. In the experiment, the researchers used many compounds, for example, Oct-1-en-3-ol (cas: 3391-86-4Application In Synthesis of Oct-1-en-3-ol).

Oct-1-en-3-ol (cas: 3391-86-4) 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.Application In Synthesis of Oct-1-en-3-ol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts