Tag: 200-300

In 2016,Baranauskiene, Renata; Rutkaite, Ramune; Peciulyte, Laura; Kazernaviciute, Rita; Venskutonis, Petras Rimantas published 《Preparation and characterization of single and dual propylene oxide and octenyl succinic anhydride modified starch carriers for the microencapsulation of essential oils》.Food & Function published the findings.COA of Formula: C4H12KNaO10 The information in the text is summarized as follows:

Hydroxypropylation with propylene oxide followed by esterification with octenyl succinic anhydride (OSA) was used to produce modified potato starch derivatives suitable for the encapsulation of essential oils. Caraway essential oil (EO) was encapsulated by spray-drying into enzymically hydrolyzed dual/single modified and native starches. The EO microencapsulation efficiency in different modified starches, the retention of volatile aroma compounds, the emulsion particle size and the microstructure of the spray-dried encapsulated powd. products, as well as the compositional aroma changes taking place during the processing and storage for up to 8 mo have been estimated The increase of OSA content from 0.97 to 2.52% in the P-native structure and from 0.91% to 2.66% in P-HP resulted in the significant increase in the encapsulating capacity, evaluated as a percentage of the total EO retained, from 61.6 to 88.0% and 73.8% to 84.0%, resp. However, the compositional changes of the microencapsulated caraway EO constituents were not remarkable. Addnl., the effect of pure and encapsulated caraway EO products on the oxidative stability of com. rapeseed oil and mayonnaise was evaluated using the instrumental Oxipres method and it was shown that they were more effective in emulsion type products by the up to 1.8-fold increase in the oxidative stability of mayonnaise. After reading the article, we found that the author used Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5COA of Formula: C4H12KNaO10)

Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5) is a ferroelectric crystal with a high piezoelectric effect and electromechanical coupling coefficient. COA of Formula: C4H12KNaO10 It is utilized to break up emulsion in organic synthesis as well as a common precipitant in protein crystallography.

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In 2015,Muench, Falk; Juretzka, Benjamin; Narayan, Suman; Radetinac, Aldin; Flege, Stefan; Schaefer, Sandra; Stark, Robert W.; Ensinger, Wolfgang published 《Nano- and microstructured silver films synthesised by halide-assisted electroless plating》.New Journal of Chemistry published the findings.Category: alcohols-buliding-blocks The information in the text is summarized as follows:

Electroless Ag plating baths were modified with different amounts of chloride and bromide, and the effect on the deposition kinetics and the morphol. of the resulting Ag films was evaluated. The baths were based on Ag nitrate and tartrate as the metal source and the reducing agent. Ethylenediamine was used as the complexing agent to suppress Ag halide precipitation With increasing halide concentration, a reduction in the deposition rate and a decreased tendency towards three-dimensional nucleation was found. Bromide affected the plating reaction more strongly than chloride. The deposit morphologies range from coarse-grained, compact particle aggregates over bimodal structures composed of island-like microparticles and smaller particles of varying geometry to shape-controlled films dominated by plates with a triangular or hexagonal shape. The fabrication of Ag films of adjustable micro- and nanostructure is relevant for various applications such as heterogeneous catalysis, sensing and plasmonics. As an example for structural tailoring enabled by the outlined reaction system, the authors created a biomimetic, self-cleaning coating possessing a static contact angle of 165 ± 3° and a tilt angle of <3°. To this end, a hydrophobic metal surface was designed which exhibits a superimposed roughness on the micrometer and submicron scale. The former was defined by the Ag deposition, the latter by consecutive galvanic replacement. To achieve superhydrophobic properties, the metal surface was coated with an alkanethiol self-assembled monolayer. In the experiment, the researchers used Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5Category: alcohols-buliding-blocks)

Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5) is a ferroelectric crystal with a high piezoelectric effect and electromechanical coupling coefficient. Category: alcohols-buliding-blocks As a Biuret reagent, it is used to measure the protein concentration. Furthermore, it is used as laxative and is also used in food industry.

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《Transition-Metal-Free Homologative Cross-Coupling of Aldehydes and Ketones with Geminal Bis(boron) Compounds》 was written by Stephens, Thomas C.; Pattison, Graham. Electric Literature of C13H26B2O4This research focused ontransition metal free homologative cross coupling aldehyde ketone; geminal bis boron compound homologative cross coupling aldehyde ketone; homologated carbonyl compound preparation. The article conveys some information:

Authors report a transition-metal-free coupling of aldehydes and ketones with geminal bis(boron) building blocks which provides the coupled, homologated carbonyl compound upon oxidation This reaction not only extends an alkyl chain containing a carbonyl group, it also simultaneously introduces a new carbonyl substituent. Authors also demonstrated that enantiopure aldehydes with an enolizable stereogenic center undergo this reaction with complete retention of stereochem. In the experimental materials used by the author, we found Bis[(pinacolato)boryl]methane(cas: 78782-17-9Electric Literature of C13H26B2O4)

Bis[(pinacolato)boryl]methane(cas: 78782-17-9) belongs to organoboron compounds.Electric Literature of C13H26B2O4 Organoboron compounds have been a cornerstone of synthetic transformations for decades. Areas such as boron-containing catalysts, metalate chemistry, photoredox methods, and boryl anions have brought significant new developments in understanding and provided new reactivity upon.

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《Open circuit potential of electroless copper plating on tungsten particles》 was written by Liu, Qiang; Xu, Rui-dong; He, Shi-wei. Computed Properties of C4H12KNaO10This research focused ontungsten electroless copper plating open circuit potential. The article conveys some information:

The open circuit potential of electroless copper plating on process was measured by electrochem. workstation, and the copper-coated tungsten composite powder and tungsten strip after plating were characterized. The results showed that during electroless copper plating, the initial open circuit potential was about -600 mV, and changed through slight increase and rapid drop, and became stable at about -870 mV in a short time, then followed a sharp rise, and finally reached -690 mV in 300 s, in the meantime it remained stable and the copper thin-film plating was accomplished. The composite complexing agent of ethylenediamine tetraacetic acid disodium salt (EDTA·2Na) and potassium sodium tartrate tetrahydrate (TART) could facilitate the copper plating reaction through adjusting the charge distribution on the surface of tungsten particles. Trace (≤ 10 mg/L) of 2,2′-bipyridine could effectively restrain the formation of Cu2O and improve the quality of the film. In the part of experimental materials, we found many familiar compounds, such as Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5Computed Properties of C4H12KNaO10)

Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5) is a ferroelectric crystal with a high piezoelectric effect and electromechanical coupling coefficient. Computed Properties of C4H12KNaO10 Potassium sodium tartrate tetrahydrate has been used in the preparation of Lowry reagent for the determination of microsomal protein concentration in rat hepatic microsomes by Lowry method.

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《Mesoporous covalent organic framework: An active photocatalyst for formic acid synthesis through carbon dioxide reduction under visible light》 was published in Molecular Catalysis in 2020. These research results belong to Sarkar, Priyanka; Riyajuddin, Sk.; Das, Anjan; Hazra Chowdhury, Arpita; Ghosh, Kaushik; Islam, Sk. Manirul. Safety of 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde The article mentions the following:

The photocatalytic reduction is demonstrate of CO2 into HCOOH using mesoporous covalent organic framework (COF) as the active photocatalyst, Co(DMG)2 as co-catalyst with Triethanolamine (TEOA) as sacrificial electron source under atm. pressure. Greater than 125 TON is achieved with 10 mg catalyst. The reaction cycle is dependent on the use of co-catalyst, Co(DMG)2 and sacrificial electron donor (TEOA). The reaction does not occur in the absence of light (445 nm) and can readily be controlled by light intensity alternation. It is also demonstrate that a TON of 36 can be obtained with use of sunlight using the catalytic cycle. These results open the door to an entirely new class of protocol for photocatalytic reduction of CO2 using COF and Co(DMG)2 as co-catalyst under visible light. In the experiment, the researchers used many compounds, for example, 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4Safety of 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde)

2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4) is a member of phloroglucinol derivatives.Safety of 2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehydePhloroglucinols are known for their broad-spectrum antiviral, antibacterial, antifungal, antihelminthic, and phytotoxic activities.

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The author of 《Virtues of Volatility: A Facile Transesterification Approach to Boronic Acids》 were Hinkes, Stefan P. A.; Klein, Christian D. P.. And the article was published in Organic Letters in 2019. Recommanded Product: 24388-23-6 The author mentioned the following in the article:

Boronic acids are an increasingly important compound class for many applications, including C-C bond formation reactions, medicinal chem., and diagnostics. The deprotection of boronic ester intermediates is frequently a problematic and inefficient step in boronic acid syntheses. The authors describe an approach that highly facilitates this transformation by leveraging the volatility of methylboronic acid and its diol esters. The method was performed under mild conditions, provides high yields, and eliminates cumbersome and problematic purification steps. In the experiment, the researchers used 4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane(cas: 24388-23-6Recommanded Product: 24388-23-6)

4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane(cas: 24388-23-6) can be used to prepare sulfinamide derivatives by reacting with diethylaminosulfur trifluoride (DAST) and potassium phenyltrifluoroborate.Recommanded Product: 24388-23-6

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In 2019,Materials Transactions included an article by Mai, Bich Dung; Nguyen, Hoai Thuong; Hoang, Duc-Quang. Recommanded Product: Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate. The article was titled 《Influence of cellulose nanoparticles on structure and electrophysical properties of ferroelectrics》. The information in the text is summarized as follows:

In present work, a comparative study on electrophys. properties of two ferroelec. nanocomposites based on cellulose nanoparticles (CNP) mixed with Rochelle salt (RS) and sodium nitrite (NaNO2) at different composition mass ratios was conducted to clarify the influence of cellulose on dielec. properties of primitive ferroelecs. The composites were carefully characterized XRD and FTIR techniques. The experiments were carried out in a wide temperature range under a weak elec. field with an amplitude of 2 V/cm at 1 kHz. The obtained results revealed that at relatively high cellulose content, the phase transition temperature of Rochelle salt in the composite increased, while for sodium nitrite – decreased as compared to those of volume ferroelecs. Besides, the higher the cellulose content was, the stronger the shift of phase transition point was observed At small cellulose content, the Curie point characteristic for volume ferroelecs. occurred. The intermol. hydrogen bonds and size effects were supposed to be responsible for the observed anomalies. In the experimental materials used by the author, we found Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5Recommanded Product: Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate)

Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate(cas: 6381-59-5) is a ferroelectric crystal with a high piezoelectric effect and electromechanical coupling coefficient. Recommanded Product: Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate It is utilized to break up emulsion in organic synthesis as well as a common precipitant in protein crystallography.

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In 2018,Murray, Stephanie A.; Luc, Eugenia C. M.; Meek, Simon J. published 《Synthesis of Alkenyl Boronates from Epoxides with Di-[B(pin)]-methane via Pd-Catalyzed Dehydroboration》.Organic Letters published the findings.Application of 78782-17-9 The information in the text is summarized as follows:

A practical and broadly applicable catalytic method for the synthesis of E-alkenylborons is presented. Reactions are promoted by [Pd(Cl)(η3-C3H5)]2 and proceed by the dehydroboration of cyclic borates. Through the use of epoxides and readily available di-B(pin)-methane (pin = pinacolato) a range of allylic alc.-containing alkenyl boronates, including those that contain a tertiary alc., may be prepared in up to 75% yield, and >20:1 E/Z. The experimental part of the paper was very detailed, including the reaction process of Bis[(pinacolato)boryl]methane(cas: 78782-17-9Application of 78782-17-9)

Bis[(pinacolato)boryl]methane(cas: 78782-17-9) belongs to organoboron compounds.Application of 78782-17-9 Organoboron compounds are versatile intermediates and as such are some of the most important classes of reagents in modern organic chemistry. This stems from their ease of preparation combined with their ability to undergo a broad range of chemical transformations.

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《Copper-catalyzed synthesis of diarylamines using p-toluenesulfonamides and benzhydrol derivatives under homogeneous borrowing hydrogen conditions》 was published in Comptes Rendus Chimie in 2020. These research results belong to Ashouri, Akram; Samadi, Saadi; Ahmadian, Masoud; Nasiri, Behzad. Application of 63012-03-3 The article mentions the following:

Diarylamines ArCH(NTs)(Ph) [Ar = Ph, 4-MeC6H4, 2-ClC6H4, etc.] were synthesized using p-toluene sulfonamides with benzhydrol derivatives in the presence of a copper/bisphosphine complex by Borrowing Hydrogen (BH) mechanism. The use of readily available and cost-effective copper salts, short reaction times, high yield and reaction rates were highlighted. In the experiment, the researchers used (3-Chlorophenyl)(phenyl)methanol(cas: 63012-03-3Application of 63012-03-3)

(3-Chlorophenyl)(phenyl)methanol(cas: 63012-03-3) belongs to hydroxy-containing compounds. Hydroxy groups participate in the dehydration reactions that link simple biological molecules into long chains. The joining of a fatty acid to glycerol to form a triacylglycerol removes the −OH from the carboxy end of the fatty acid.Application of 63012-03-3

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Product Details of 34374-88-4In 2019 ,《Ag NPs decorated on a COF in the presence of DBU as an efficient catalytic system for the synthesis of tetramic acids via CO2 fixation into propargylic amines at atmospheric pressure》 was published in Dalton Transactions. The article was written by Ghosh, Swarbhanu; Molla, Rostam Ali; Kayal, Utpal; Bhaumik, Asim; Islam, Sk. Manirul. The article contains the following contents:

CO2 fixation reactions by inserting it in reactive organic compounds are very challenging for the utilization of this abundant and harmful gas present in air and thus to mitigate this greenhouse gas responsible for global warming. This can be achieved by appropriate design of functionalized porous nanocatalysts having high surface areas and porosity and good CO2 uptake capacity. Herein, we first report the decoration of silver nanoparticles (NPs) over the surface of a covalent organic framework (COF) material TpPa-1 synthesized through the polycondensation of 2,4,6-triformylphloroglucinol (TFP) and p-phenylenediamine. The resulting material Ag@TpPa-1 was thoroughly characterized by N2 adsorption/desorption, powder X-ray diffraction (PXRD), FE-SEM, TEM, UV-Vis, FT IR and thermogravimetric techniques. This Ag NP decorated porous COF in the presence of DBU exhibited excellent catalytic activity for the synthesis of tetramic acids from a variety of propargylic amine derivatives at 60 °C under atm. pressure of carbon dioxide via formation of oxazolidinones, where CO2 acts as a C1 reagent. The Ag@TpPa-1 catalyst exhibited excellent recycling efficiency for the synthesis of tetramic acid with no leaching of Ag from the catalyst surface.2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4Product Details of 34374-88-4) was used in this study.

2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4) is a member of phloroglucinol derivatives. Phloroglucinol derivatives are a major class of secondary metabolites. Phloroglucinol compounds can be classified into monomeric, dimeric, trimeric and higher phloroglucinols, and phlorotannins.Product Details of 34374-88-4

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