Tag: 200-300

Wang, Yingying;Qin, Hongmei;Wang, Mei;Li, Yuxiang;Sun, Daotong;Yang, Jianye published 《Research of synthesis and properties of benzthiadiazole-based non-covalent conformational locking small molecule》 in 2021. The article was appeared in 《Gongneng Cailiao》. They have made some progress in their research.Reference of 2-Hexyl-1-decanol The article mentions the following:

In recent years, fused-ring compounds have achieved remarkable results in the field of organic optoelectronic materials. In this paper, two novel benzothiadiazole (BT)-based conjugated non-covalently bonded ring small mol. compounds with the electron-absorbing groups fluorine and cyano group as ending-group, namely BT2T-IC and BT2T-IC4F, were synthesized successfully by Still coupling and Knoevengel condensation reaction, resp. On the one hand, SO and OH can be used to form non-covalent bond conformation lock in mols. to promote the planarity of mols. On the other hand, intramol. charge transfer can be enhanced by increasing the electron-lack of the end group. Under the synergistic action, the spectral absorption of the two new small mol. compounds is broadened to the near IR region, which is conducive to obtaining a wide spectral response. Their mol. structures were characterized by NMR, and their photophysics and electrochem. properties were investigated by d. functional theory (DFT) calculations, UV-vis absorption spectroscopy and cyclic voltammetry experiments The experimental procedure involved many compounds, such as 2-Hexyl-1-decanol (cas: 2425-77-6) .

2-Hexyl-1-decanol(cas: 2425-77-6) is a fatty acid that is found in the essential oils of plants and has been shown to have fungicidal properties.Reference of 2-Hexyl-1-decanol It has also been shown to inhibit the growth of Candida glabrata when used as a cationic surfactant.

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Jana, Barun published 《Synthesis, characterization and crystal structure determination of aluminum hydride complexes of N,N’-Di(isopropyl)ethylenediamine ligand》. The research results were published in《Journal of Molecular Structure》 in 2021.Safety of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol The article conveys some information:

Reaction of alane-amine adduct, AlH₃·NMe₂Et, with N,N’-di(isopropyl)ethylenediamine was conducted for the preparation of amide ligated aluminum hydride complexes via dehydrocoupling pathway. Depending on the proportion of the reagents (1:1 and 3:2) two different products (1) and (2) were isolated. Compounds 1 and 2 were characterized using different spectroscopic techniques along with the determination of solid-state mol. structure via single crystal x-ray diffraction studies. In the crystal lattice of complex 2, mols. are connected via weak Al-H…H-C hydrogen bonding supramol. interactions to form polymeric arrangements of the mol. Further, a reaction of 2 with two equivalent of 1,2-diphenylethylene-glycol generated complex 3 that was isolated in trace quantities. Mol. structure of 3 was also determined using single crystal x-ray diffraction study. And rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) was used in the research process.

Desymmetrization of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol(cas:579-43-1 Safety of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol) using chiral phosphine catalyst has been reported. Conversion of meso-hydrobenzoin to trans-stillbene oxide by treatment with an aryl sulfonyl chloride and aqueous sodium hydroxide has been reported.

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Today I want to share an article with you. The article is 《Occurrence and tissue distribution of alkylphenols (APs) in selected waterbirds from the Southern Baltic》,you can find this article in 《Chemosphere》. The following contents are mentioned:

The aim of the present study was to determine the concentrations of nonylphenols (NPs) and 4-t-octylphenol (4tOP) in the muscles, liver, and kidneys of selected waterbird species. Three species with different feeding habits were selected, i.e., greater scaup (Aythya marila), great crested grebe (Podiceps cristatus), and great cormorant (Phalacrocorax carbo) to investigate the potential effects of diet on the level of contaminants tested. The determination and quantification of analytes were performed using gas chromatog. with mass spectrometric detection (GC-MS). The highest NP concentrations were noted in the kidneys of greater scaups and great crested grebes (208.3 and 160.8 μg kg-1 ww, resp.), which were six to fourteen-fold higher than those in the muscles (15.0 and 25.6 μg kg-1 ww, resp.) and livers (22.9 and 13.8 μg kg-1 ww, resp.) of these species. In greater scaups, the mean concentration of NPs in the livers was lower than in the muscles, while in great crested grebes, it was the opposite and higher concentrations were noted in the muscles. The mean concentrations of NPs in the muscles and livers of great cormorants were at similarly low levels (12.5 and 9.7 μg kg-1 ww, resp.). The concentrations of 4tOP in all samples were low, ranging from <LOQ to 0.29 μg kg-1 ww. The results of our study indicated that sex and diet did not affect the NP tissue concentrations in different waterbird species, but the phenol. period (migration vs breeding) might influence the contamination levels in the kidneys. The experimental procedure involved many compounds, such as 4-tert-Octylphenol (cas: 140-66-9) .

4-tert-Octylphenol(cas: 140-66-9) has been used as a reference standard for the determination of the analyte in water samples using ultra-high-performance liquid chromatography/tandem mass spectrometry (UHPLC/MS/MS).Name: 4-tert-Octylphenol

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Ye, Xianfeng;Chen, Yang;Ma, Shiyun;Yuan, Tian;Wu, Yaxuan;Li, Yingxuan;Zhao, Yuqiang;Chen, Shuying;Zhang, Yiwen;Li, Liuyan;Li, Zhoukun;Huang, Yan;Cao, Hui;Cui, Zhongli published 《Biocidal effects of volatile organic compounds produced by the myxobacterium Corrallococcus sp. EGB against fungal phytopathogens》. The research results were published in《Food Microbiology》 in 2020.HPLC of Formula: 2425-77-6 The article conveys some information:

Myxobacteria have excellent biocontrol activity against various phytopathogens due to their rich spectrum of secondary metabolites and active predatory characteristics. In this study, the mycelial growth of Fusarium oxysporum f. sp. cucumerinum (FOC) was found to be significantly inhibited by volatile compounds (VOCs) produced by Corallococcus sp. EGB. A total of 32 compounds were identified among the VOCs produced by strain EGB, of which isooctanol exhibited the highest antifungal activity, with dosages of 3.75 and 4.0μL/plate being sufficient to suppress FOC and Penicillum digitatum, resp. Isooctanol was found to damage the cell wall and cell membranes of FOC and P. digitatum. Apoptosis-like cell death of FOC and P. digitatum induced by isooctanol was observed subsequently due to the accumulation of reactive oxygen species (ROS). The transcription level of genes related to cell wall integrity (CWI) pathway and redox reactions were significantly upregulated by 15- to 40-fold, indicating the stress caused by isooctanol. Postharvest storage experiments showed that the disease severity of post-harvest oranges infected with P. digitatum could be significantly reduced by isooctanol at 114.2μL/L. The experimental procedure involved many compounds, such as 2-Hexyl-1-decanol (cas: 2425-77-6) .

2-Hexyl-1-decanol(cas: 2425-77-6) is a fatty acid that is found in the essential oils of plants and has been shown to have fungicidal properties.HPLC of Formula: 2425-77-6 It has also been shown to inhibit the growth of Candida glabrata when used as a cationic surfactant.

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Du, Zong-Da;Cui, Yuan-Yuan;Yang, Cheng-Xiong;Yan, Xiu-Ping published 《Synthesis of magnetic amino-functionalized microporous organic network composites for magnetic solid phase extraction of endocrine disrupting chemicals from water, beverage bottle and juice samples》. The research results were published in《Talanta》 in 2020.HPLC of Formula: 599-64-4 The article conveys some information:

In this work, the magnetic amino-functionalized microporous organic network composites (Fe₃O₄@MON-NH₂) were rational designed and facile synthesized for magnetic solid phase extraction (MSPE) of endocrine disrupting chems. (EDCs), followed by their anal. with high-performance liquid chromatog. The incorporation of amino groups (hydrogen bonding sites) into hydrophobic MON-NH₂ networks led to their good enrichment for four typical EDCs bisphenol A (BPA), 4-alpha-cumylphenol (4-α-CP), 4-tert-octylphenol (4-t-OP) and 4-nonylphenol (4-NP) relying on the pre-designed hydrogen bonding, π-π and hydrophobic interactions. The combination of MON-NH₂ shell and magnetic Fe₃O₄ core provided a fast extraction of BPA, 4-α-CP, 4-t-OP and 4-NP from matrix solution Under the optimal conditions, the developed method offered good linearity (R² > 0.990) in the range of 0.05-1000 μg L^-1, low limits of detection (S/N = 3) of 0.015-0.030 μg L^-1 and large enrichment factors of 172-197 for the studied EDCs. The maximum adsorption capacities of BPA, 4-α-CP, 4-t-OP and 4-NP were 124.1, 105.6, 116.6 and 117.9 mg g^-1, resp. The Fe₃O₄@MON-NH₂ gave larger selectivity for other polar phenols than non-polar polycyclic aromatic hydrocarbons, revealing the dominant role of hydrogen bonding interaction during the extraction and the potential of Fe₃O₄@MON-NH₂ for other polar phenols. The developed method was successfully applied for the anal. of EDCs in water, orange juice and beverage bottle samples with the recoveries of 80.3-109.5%. These results revealed the potential of functional MONs as efficient adsorbents in sample pretreatment. The experimental procedure involved many compounds, such as 4-(2-Phenylpropan-2-yl)phenol (cas: 599-64-4) .

4-(2-Phenylpropan-2-yl)phenol(cas:599-64-4) is a natural product found in Panax ginseng.HPLC of Formula: 599-64-4 4-(2-Phenylpropan-2-yl)phenol is a useful reagent for preparing and characterizing aromatic polyphosphonates as high refractive index polymers.

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Computed Properties of C14H14O2《A mild access to chiral syn 1,2-diaryl glycols by stereoselective ring opening of ortho substituted trans 2,3-diaryl-oxiranes using Amberlyst 15 in H₂O/THF system》 was published in 2015. The authors were Lupattelli, Paolo;Chiummiento, Lucia;Funicello, Maria;Tramutola, Francesco;Marmo, Antonella;Gliubizzi, Natascia;Tofani, Daniela, and the article was included in《Tetrahedron》. The author mentioned the following in the article:

Amberlyst 15 was an efficient and green catalyst for the reaction of 2,3-diaryloxiranes with H₂O in organic co-solvent to prepare glycols in high yield. Ortho substituted trans 2,3-diaryloxiranes afforded the corresponding syn glycols stereo- and enantiospecifically. Stereoselectivity appeared related to the coordination ability of the substituents, irresp. of their electronic properties. Indeed o-OCH₃ and o-OBn substituted syn glycols were obtained in high stereochem. ratios (6/1 and 10/1, resp.), and o-OTIPS and o-NO₂ substituted ones were obtained as exclusive products, with the same ee of the parent epoxides.rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) were involved in the experimental procedure.

rel-(1R,2S)-1,2-Diphenylethane-1,2-diol(cas: 579-43-1 Computed Properties of C14H14O2) has been used in the preparation of trans-methyl meso-hydrobenzoin phosphite.

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Ayya Swamy P, Chinna;Varenikov, Andrii;de Ruiter, Graham published 《Direct Asymmetric Hydrogenation and Dynamic Kinetic Resolution of Aryl Ketones Catalyzed by an Iridium-NHC Exhibiting High Enantio- and Diastereoselectivity》. The research results were published in《Chemistry – A European Journal》 in 2020.Safety of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol The article conveys some information:

A chiral iridium carbene-oxazoline catalyst that is able to directly and efficiently hydrogenate a wide variety of ketones such as 1-(4-fluorophenyl)ethan-1-one, hex-5-en-2-one, 2-methyl-1-tetralone, etc. in excellent yields and good enantioselectivity (up to 93% ee) is reported. Moreover, when using racemic α-substituted ketones R¹C(O)CH(CH₃)S(O)₂R² (R¹ = Ph, 4-fluorophenyl, 4-methoxyphenyl; R² = morpholin-4-yl, piperidin-1-yl, pyrrolidin-1-yl), excellent diastereoselectivities were obtained (1S,2S)-R¹CH(OH)CH(CH₃)S(O)₂R² (dr 99:1) by dynamic kinetic resolution of the in situ formed enolate. Overall, the herein described hydrogenation occurs under ambient conditions using low hydrogen pressures, providing a direct and atom efficient method towards chiral secondary alcs. such as (S)-1-(4-fluorophenyl)ethanol, (S)-hex-5-en-2-ol, (1S,2S)-2-methylcyclohexanol, etc. The experimental procedure involved many compounds, such as rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) .

Desymmetrization of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol(cas:579-43-1 Safety of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol) using chiral phosphine catalyst has been reported. Conversion of meso-hydrobenzoin to trans-stillbene oxide by treatment with an aryl sulfonyl chloride and aqueous sodium hydroxide has been reported.

Reference:
Alcohol – Wikipedia,
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Hayden, Kathryn R.;Preisendanz, Heather E.;Elkin, Kyle R.;Saleh, Laura B.;Weikel, Jamie;Veith, Tamie L.;Elliott, Herschel A.;Watson, John E. published 《Comparison of POCIS and grab sampling techniques for monitoring PPCPs in vernal pools in central Pennsylvania》. The research results were published in《Science of the Total Environment》 in 2022.Name: 4-tert-Octylphenol The article conveys some information:

Active ingredients in pharmaceuticals and personal care products (PPCPs) can persist through wastewater treatment plants and be released into the environment where they can inadvertently pose risks to non-target organisms. Emerging contaminants (ECs), including PPCPs, are commonly detected in wastewater effluent. With the increasing beneficial re-use of treated wastewater globally, there is a need to understand how spray-irrigation activities affect the occurrence and persistence of ECs in the environment to which they are introduced. Here, we explore the impacts of wastewater spray-irrigation on nearby ephemeral wetlands (e.g., vernal pools) through the use of grab and Polar Organic Chem. Integrative Sampling (POCIS) techniques. This study sought to determine whether integrative sampling techniques are better suited than traditional grab sampling techniques in assessing the presence and concentrations of ECs in vernal pools by evaluating 34 ECs in six vernal pools in central Pennsylvania. Three pools were impacted by wastewater spray-irrigation activities and three were in a nearby forested area. Results of this study found that POCIS detected a wide range of 25 ECs (log Kow between -2.6 and 9.37) more or, in some cases, equally frequently, relative to grab samples. Addnl., grab samples were found to best capture short-lived elevated inputs of ECs (from irrigation events) while POCIS were found to best capture ECs that were present in vernal pools over a longer period of time (weeks to months). For ECs detected more frequently in grab samples, concentrations were higher compared to time weighted average aqueous concentrations estimated from POCIS. This study advances understanding of the potential impact of wastewater beneficial reuse on vernal pools and informs how best to monitor the presence of ECs in vernal pools using integrative and grab sampling techniques. The experimental procedure involved many compounds, such as 4-tert-Octylphenol (cas: 140-66-9) .

4-tert-Octylphenol(cas: 140-66-9) is a common environmental pollutant showing weak estrogenic effects.Name: 4-tert-Octylphenol It has been shown to cause harm to vertebrate male reproductive systems.

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Yada, Shiho;Yoshioka, Yuiko;Ohno, Masashi;Koda, Toshinari;Yoshimura, Tomokazu published 《Adsorption and aggregation properties of homogeneous polyoxyethylene alkyl ether- and ester-type nonionic surfactants with multi-branched double chains》 in 2022. The article was appeared in 《Colloids and Surfaces, A: Physicochemical and Engineering Aspects》. They have made some progress in their research.Electric Literature of C16H34O The article mentions the following:

Homogeneous polyoxyethylene (EO) alkyl ether- and ester-type nonionic surfactants with multi-branched double chains were newly synthesized. Their adsorption and aggregation properties were investigated through cloud point, surface tension, and small-angle X-ray scattering measurements, and compared to those of homogeneous EO alkyl ether- and ester-type nonionic surfactants with sym. and asym. linear double chains as well as a conventional surfactant with a linear single chain. The surface tension at the critical micelle concentration for the multi-branched double-chain type decreased considerably to 27.9-28.8 mN m^-1 despite having a large hydrophilic group of EO12 when multi-branched Me groups with low surface energy were used as the hydrophobic groups of the surfactants. In the temperature vs. concentration phase diagrams, the regions of lamellar liquid crystals were more extensive for the linear double-chain surfactants because of the small interfacial curvature induced by the steric hindrance of the multi-branched chains. To complete the study, the researchers used 2-Hexyl-1-decanol (cas: 2425-77-6) .

2-Hexyl-1-decanol(cas: 2425-77-6) may be employed as an organic solvent to study the extraction of non-polar acidic drugs from human plasma by parallel artificial liquid membrane extraction (PALME). Electric Literature of C16H34O

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Name: 2-Hexyl-1-decanol《Plant extracts effectiveness to extend bison meat shelf life》 was published in 2020. The authors were Sood, Vipasha;Tian, Wenchao;Narvaez-Bravo, Claudia;Arntfield, Susan D.;Gonzalez, Argenis Rodas, and the article was included in《Journal of Food Science》. The author mentioned the following in the article:

The effectiveness of plant extracts (0.05% rosemary and 0.08% oregano) to extend shelf life of bison strip loin steaks in terms of color stability and consumer acceptability was studied. Steaks treated with oregano presented lower oxygen consumption, higher metmyoglobin-reducing activity (MRA), decreased lipid oxidation, and provided a stable red color with less discoloration during the retail display period than the control and rosemary treated steaks (P < 0.05). Results from consumer sensory evaluation indicated that treated steaks under study were not significantly different from the control (P > 0.05) based on palatability attributes and acceptability. However, rosemary treated steaks were more desirable and palatable than their oregano counterparts (P < 0.05). Overall, plant extracts, particularly oregano, can improve color stability of bison steaks due to its antioxidants properties and ability to increase MRA capacity in fresh bison meat without posing any neg. impact on its sensory attributes. Practical Application : This study will provide valuable information to the bison meat industry on how to offer a more consistent and acceptable product (in terms of palatability and color) to consumers using plant-based natural antioxidants, without diminishing the palatability of their products. This technol. can offer two more days of shelf life in retail overwrap packaging, consequently, opening the possibility for the bison industry to expand its market with a potential to reduce retail losses due to poor color stability and early browning (i.e., stock out, markdowns, and waste due to expired display life). And 2-Hexyl-1-decanol (cas: 2425-77-6) was used in the research process.

2-Hexyl-1-decanol(cas: 2425-77-6) may be employed as an organic solvent to study the extraction of non-polar acidic drugs from human plasma by parallel artificial liquid membrane extraction (PALME). Name: 2-Hexyl-1-decanol

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