Tag: 200-300

HPLC of Formula: 599-64-4《Effectively enhanced photodegradation of Bisphenol A by in-situ g-C₃N₄-Zn/Bi₂WO₆ heterojunctions and mechanism study》 was published in 2020. The authors were Ruan, Xian;Hu, Yongyou, and the article was included in《Chemosphere》. The author mentioned the following in the article:

In our work, a series of in-situ g-C₃N₄-Zn/Bi₂WO₆ heterojunctions were synthesized by a two-step solvothermal method followed with calcination process, using dicyanamide as the precursor for g-C₃N₄. C₃N₄-Zn/BWO heterojunctions were of gossypine shape, and both C₃N₄ and Zn were finely distributed into BWO nanosheets, forming a hierarchical structure. C₃N₄-Zn/BWO with 2.0 g of precursor addition and calcined at 520°C exhibited effectively enhanced photodegradation for typical organic contaminant BPA, degrading 93% within 120 min, and implied a maximum rate constant k of 0.0211 min^-1, indicating synergistic effect of C₃N₄ and Zn components in C₃N₄-Zn/BWO heterojunction. The enhancement of photocatalysis was due to quick carriers’ separations via Z-scheme system and enlarged sp. surface area of as-synthesized C₃N₄-Zn/BWO heterojunction. Main reactive oxidation species were detected to be h⁺ and ·O^–2, and nine intermediates were confirmed via anlysis of LC-MS/MS. This study provided an alternative strategy to design novel photocatalysts containing multicomponents for higher photocatalytic activity. 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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Bag, Raghunath;Sar, Dinabandhu;Punniyamurthy, Tharmalingam published 《Aerobic Metal-Free Dioxygenation of Alkenes with tert-Butyl Nitrite and N-Hydroxylamines》 in 2017. The article was appeared in 《ACS Omega》. They have made some progress in their research.Formula: C14H14O2 The article mentions the following:

Metal-free dioxygenation of alkenes with tert-Bu nitrite and N-hydroxylamines (NHPI, HOBt and NHSI) is described to produce β-aminoxy nitrate esters using air as the oxidant. These organic nitrates can be readily converted into 1,2-diols and 1,2-diketone with broad substrate scope and functional group diversity. 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 Formula: C14H14O2) 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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Silva, Lidia Gaudencio Ribeiro;Costa, Elizangela Pinheiro;Starling, Maria Clara Vieira Martins;dos Santos Azevedo, Taiza;Bottrel, Sue Ellen Costa;Pereira, Renata Oliveira;Sanson, Ananda Lima;Afonso, Robson Jose Cassia Franco;Amorim, Camila C. published 《LED irradiated photo-Fenton for the removal of estrogenic activity and endocrine disruptors from wastewater treatment plant effluent》 in 2021. The article was appeared in 《Environmental Science and Pollution Research》. They have made some progress in their research.Electric Literature of C14H22O The article mentions the following:

The goal of this work was to evaluate the performance of the LED irradiated photo-Fenton process on the removal of (i) estrogenic activity and (ii) seven endocrine disruptors (EDs) (4-octylphenol, 4-nonylphenol, bisphenol A, estrone, 17β-estradiol, 17α-ethinylestradiol, and estriol) from real wastewater treatment plant effluent (WWTPE). EDs are a group of contaminants of emerging concern present in WWTPE and which may be recognized by hormone receptors, thus harming animal and human health. The yeast estrogenic screen test (YES) was used to quantify estrogenic activity promoted by EDs in WWTPE samples before and after photo-Fenton treatment. Tests were performed following a factorial design with different iron (20, 40, and 60 mg L-1) and hydrogen peroxide (100, 200, and 300 mg L-1) concentrations in a laboratory scale LED photoreactor (λ = 455 nm, 1.5 L, 1.6 x 10-6 Einstein s-1). EDs were analyzed by gas chromatog. coupled to a mass spectrometer. Control experiments consisted of Fenton process, iron only, LED irradiation only, and H2O2 only. Optimum exptl. conditions for LED photo-Fenton resulted in 62% removal of estrogenic activity and 59% mineralization. In addition, treated WWTPE was not toxic to Aliivibrio fischeri and more than 80% of EDs were removed during LED irradiated photo-Fenton. Although Fenton process showed similar efficiency to that obtained by LED photo-Fenton, a higher volume of sludge was generated in the dark. Finally, results obtained in this study confirm the applicability of LED irradiated photo-Fenton process for improving the quality of WWTPE as an alternative to solar photo-Fenton in case solar radiation is not available, thus reducing hazards associated to WWTPE reuse or discharge. And 4-tert-Octylphenol (cas: 140-66-9) was used in the research process.

4-tert-Octylphenol(cas: 140-66-9) is a common environmental pollutant showing weak estrogenic effects.Electric Literature of C14H22O It has been shown to cause harm to vertebrate male reproductive systems.

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Zhu, Zhaodong;Gong, Yuxin;Tong, Weiqi;Xue, Weichao;Gong, Hegui published 《Ni-Catalyzed Cross-Electrophile Coupling of Aryl Triflates with Thiocarbonates via C-O/C-O Bond Cleavage》 in 2021. The article was appeared in 《Organic Letters》. They have made some progress in their research.COA of Formula: C15H16O The article mentions the following:

A synthesis of aryl thioesters RCOSR¹ (R = Ph, 4-MeO₂CC₆H₄, 4-BnOC₆H₄, etc.; R¹ = n-hexyl, cyclohexyl, cyclopentyl, etc.) via nickel-catalyzed reductive coupling of aryl triflates with thiocarbonates was reported. Both electron-rich and -deficient aryl C(sp²)-O electrophiles as well as a class of O-tBu S-alkyl thiocarbonates were compatible with the optimized reaction conditions as evidenced by 49 examples. The reaction also proceeded with good chemoselective cleavage of the C-O bond with regard to thioesters. This work broadened the scope of nickel-catalyzed reductive cross-electrophile coupling reactions. And 4-(2-Phenylpropan-2-yl)phenol (cas: 599-64-4) was used in the research process.

4-(2-Phenylpropan-2-yl)phenol(cas:599-64-4) is a natural product found in Panax ginseng.COA of Formula: C15H16O 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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Synthetic Route of C16H34OIn 2021, Liang, Kehong;Liu, Yuhang;Liang, Shan published 《Analysis of the characteristics of foxtail millet during storage under different light environments》. 《Journal of Cereal Science》published the findings. The article contains the following contents:

In this work, the impacts of white, red and blue light-emitting diodes on the quality of millet during long-term storage were investigated. It was found that millet stored under blue light for 90 days showed a significantly slower reduction in malondialdehyde (MDA) content and fatty acid value, and a higher iodine value, than that stored under white- or red-light conditions. Furthermore, blue light was also shown to lower lipoxygenase (LOX) and lipopolysaccharide (LPS) activity during storage. Scanning electron microscope observation revealed that narrow cracks became wider as storage time increased, while a rougher texture and more cracks were seen after 90 days in the millet irradiated with red light than in those either irradiated with blue light or stored in dark conditions. The components related to oxidation, such as 5-hexyldihydro-2(3h)-furanone, 3-octen-2-one, trans-β-ionone, and hexanal contents, were found to be lower under blue light than under either red or white light. Moreover, principal component anal. indicated that the volatile components present in the of millet during storage under different light conditions were mainly aldehydes, ketones, esters, alcs. and hydrocarbons. In order to limit the adverse effects of these volatile components during long-term storage, based on the results of this study, we recommend that blue light could be applied as a clean and cheap technol. to extend the shelf life of millet. To complete the study, the researchers used 2-Hexyl-1-decanol (cas: 2425-77-6) .

2-Hexyl-1-decanol(cas: 2425-77-6) is a branched alcohol. It is one of the constituent of the essential oil, extracted from the roots of Adiantum flabellulatum. Synthetic Route of C16H34O

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Rank, Christian K.;Oezkaya, Buenyamin;Patureau, Frederic W. published 《HBF₄– and AgBF₄-Catalyzed ortho-Alkylation of Diarylamines and Phenols》. The research results were published in《Organic Letters》 in 2019.Application of 599-64-4 The article conveys some information:

A silver-tetrafluoroborate- or HBF₄-catalyzed ortho-alkylation reaction of phenols and diarylamines with styrenes has been explored. A broad substrate scope is presented as well as mechanistic experiments and discussion. And 4-(2-Phenylpropan-2-yl)phenol (cas: 599-64-4) was used in the research process.

4-(2-Phenylpropan-2-yl)phenol(cas:599-64-4) is a natural product found in Panax ginseng.Application of 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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Tong, Huiquan;Cao, Changwei;Du, Yanli;Liu, Yong;Huang, Wei published 《Ultrasonic-assisted phosphate curing: a novel approach to improve curing rate and chicken meat quality》 in 2022. The article was appeared in 《International Journal of Food Science and Technology》. They have made some progress in their research.Category: alcohols-buliding-blocks The article mentions the following:

The effects of ultrasound-assisted phosphate curing (UPC), phosphate curing (PC), and deionised water curing (DC) on the quality of chicken breast meat were investigated. The anal. of tissue sections, low-field NMR (LF-NMR), and headspace solid-phase microextraction gas-phase mass spectrometry (HS-SPME-GC-MS) of water distribution, myofibrillary structure, and volatile components of the meat samples were performed to reveal the mechanism. Also, the curing rate, water holding capacity (WHC), and shear force of meat were assessed. The results revealed that ultrasonic-assisted salting improved the meat salting rate, WHC, and tenderness by mech. destroying the muscle fiber structure, increasing the space between the muscle fiber bundles, promoting water migration and uniform distribution, and reducing water freedom in the treated samples. In addition, HS-SPME-GC-MS anal. revealed that PC significantly reduced the content of volatile flavor components in the chicken breast meat compared with DC (P < 0.05); however, the combination treatment with PC and ultrasonic curing could reconstruct the flavor loss caused by phosphate. Thus, our cumulative results suggest that the ultrasonic technol. may effectively assist the processing technol. in improving the quality of meat and reconstructing the flavor loss in meat products.2-Hexyl-1-decanol (cas: 2425-77-6) were involved in the experimental procedure.

2-Hexyl-1-decanol(cas: 2425-77-6) has been shown to inhibit the growth of b16 mouse melanoma cells, suggesting it may be useful for treating skin cancer.Category: alcohols-buliding-blocks This fatty acid also has transport properties and can form hydrogen bonds with other molecules.

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Liu, Xiaojie;Xu, Biping;Su, Weiping published 《Ni-Catalyzed Deoxygenative Borylation of Phenols Via O-Phenyl-uronium Activation》. The research results were published in《ACS Catalysis》 in 2022.HPLC of Formula: 599-64-4 The article conveys some information:

Herein, we report an efficient method for the Ni-catalyzed deoxygenative borylation of unprotected phenols and also demonstrate that this Ni-catalyzed phenolic C(sp²)-O transformation is applicable to the Suzuki-Miyaura-type and Heck-type cross-couplings of phenols. Investigations on the reaction intermediate have revealed that the achievement of general, mild deoxygenative cross-coupling reactions of phenols is ascribed to the conversion of phenols into the unusual O-phenyl-uroniums that feature active phenolic C(sp²)-O bonds. The Ni-complex intermediate resulting from an oxidative addition of a phenolic C(sp²)-O bond to monophosphine-supported Ni(0) catalyst was characterized and confirmed to be (PCy₃)₂Ni(Ar)(F) complex, offering exptl. evidence for the generally proposed C(sp²)-O oxidative addition step.4-(2-Phenylpropan-2-yl)phenol (cas: 599-64-4) were involved in the experimental procedure.

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.

Reference:
Alcohol – Wikipedia,
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Sukuroglu, Ayca Aktas;Battal, Dilek;Kocadal, Kumsal;Sungur, Mehmet Ali;Cok, Ismet;Unlusayin, Irfan published 《Biomonitoring of bisphenol A, 4-nonylphenol, and 4-t-octylphenol in Turkish population: exposure and risk assessment》. The research results were published in《Environmental Science and Pollution Research》 in 2022.Category: alcohols-buliding-blocks The article conveys some information:

Biomonitoring studies are important tools to understand the effects of endocrine-disrupting compounds on human health. Up to now, there have been no biomonitoring and risk assessment studies conducted in Turkish population in which urinary bisphenol A (BPA), 4-nonylphenol (4-NP), and 4-t-octylphenol (4-t-OP) levels were measured simultaneously. The aim of this study is to measure urinary BPA, 4-NP, and 4-t-OP on Turkish population and conduct a risk assessment using urinary levels of chems. of interest. During the study, liquid chromatog. with tandem mass spectrometry (LC-MS/MS) was used to measure urinary levels of above-mentioned chems., and human biomonitoring was used as a risk assessment tool in 103 volunteers, living in Mersin Region, Turkey. Urinary BPA, 4-NP, and 4-t-OP were founded as 0.0079μg/g creatinine, 0.0177μg/g creatinine, and 0.0114μg/g creatinine, resp. The obtained estimated daily intakes (EDIs) were calculated as 0.095μg/kg bw/day, 0.041μg/kg bw/day, and 0.091μg/kg bw/day, for BPA, 4-NP, and 4-t-OP, resp. In conclusion, although no potential health risk due to BPA and 4-NP exposure was observed, there might be health risks associated with 4-t-OP exposure in the Turkish population.4-tert-Octylphenol (cas: 140-66-9) were involved in the experimental procedure.

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).Category: alcohols-buliding-blocks

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SDS of cas: 140-66-9《Effects of four drying methods on Ganoderma lucidum volatile organic compounds analyzed via headspace solid-phase microextraction and comprehensive two-dimensional chromatography-time-of-flight mass spectrometry》 was published in 2021. The authors were Liu, Yi-jun;Qian, Yang-yang;Bing, Shu;Liu, Yang-yang;Tu, Xing-hao;Ouyang, Hong-jun;Li, Yahui;Ge, Tan;Yu, Zi-wei;Fei, Chen;Lin, Li-jing, and the article was included in《Microchemical Journal》. The author mentioned the following in the article:

The effect of four drying methods (namely, sun drying, vacuum freeze drying, vacuum drying, and hot air drying) on the fresh Ganoderma lucidum volatile organic compounds (VOCs) was studied by their separation via headspace solid-phase microextraction and identification via comprehensive two-dimensional chromatog.-time-of-flight mass spectrometry. In total, 247 kinds of VOCs, mainly composed of alcs., aldehydes, esters, ketones, and olefins, were identified. Orthogonal partial least squares discriminant anal. and displacement test combined with the variable important in the projection method revealed that VOCs’ types and contents in Ganoderma lucidum were influenced by the particular drying method, which could be identified using specific organic compounds The heating process increased the content of aldehydes, esters, and olefins and reduced alc. and ketones’ content. Since 3-propoxy-1-Propene, 2-pentyl-Furan, Acetic acid, 2-Butanone, 1-Pantano, and other VOCs did not disappear during the drying process, they can be used for the classification and identification of Ganoderma lucidum species and other edible fungi. To complete the study, the researchers used 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).SDS of cas: 140-66-9

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