Month: November 2022

Bidentate Schiff base coordinated square planer nickel(II) complexes: Synthesis, crystal structure, DFT/TD-DFT calculation and DNA/protein binding was written by Patra, Apu;Puschmann, Horst;Manna, Subal Chandra. And the article was included in Polyhedron in 2021.Category: ethers-buliding-blocks The following contents are mentioned in the article:

Two mononuclear square planer Ni(II) complexes, [Ni(L¹)₂] (1) and [Ni(L²)₂] (2) [HL¹ = 2-[(2-Methoxy-ethylimino)-methyl]-phenol; HL² = 2-Methoxy-6-[(2-methoxy-ethylimino)-methyl]-phenol] were synthesized and characterized through x-ray single crystal structure determination and DFT/TDDFT calculation Both the complexes crystallize with P2₁/c space group. C-H…π interactions results 2-dimensional and 1-dimensional supramol. network of complexes 1 and 2, resp. Interaction of complexes with calf thymus DNA (CT-DNA), bovine serum albumin (BSA) and human serum albumin (HSA) were studied by using both UV-visible absorption and emission spectroscopic techniques, and the calculated values of intrinsic binding constants with CT-DNA are (1.43 ± 0.56) x 10⁶ M^-1 (for 1) and (1.25 ± 0.79) x 10⁶ M^-1 (for 2). This study involved multiple reactions and reactants, such as 2-Methoxyethylamine (cas: 109-85-3Category: ethers-buliding-blocks).

2-Methoxyethylamine (cas: 109-85-3) belongs to ethers. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Category: ethers-buliding-blocks

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

The effect of solder paste residues on RF signal integrity was written by Turbini, Laura J.;Smith, Brian A.;Brokaw, James;Williams, John;Gamalski, Jurgen. And the article was included in Journal of Electronic Materials in 2000.Synthetic Route of C10H22O3 The following contents are mentioned in the article:

Wireless devices such as pagers and cellular phones are becoming common consumer items. These products require low loss RF signal propagation which is affected by material choices and processing conditions. This paper examines the effect of a series of no-clean solder pastes on signal integrity using an RF test circuit which sends a broadband signal through a gallium arsenide antenna switch and measures its transmission using a network analyzer. The test circuit also measures signal leakage. This paper reports on two different test vehicles, one that uses a 900 MHz antenna switch, and the other that uses a 2.0 GHz antenna switch. The transmission and leakage readings were taken daily for 16-21 days while the test vehicles were under accelerated aging conditions of 85°C and 85% RH. Average values for the readings for each solder paste were plotted to provide comparison among the pastes. The comparison data clearly distinguish solder pastes that provide consistency throughout the test period from those which do not. This study involved multiple reactions and reactants, such as 2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4Synthetic Route of C10H22O3).

2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4) belongs to ethers. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Synthetic Route of C10H22O3

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

A two-phase reaction system for selective oxidative degradation of lignin model compounds was written by Chen, Yueying;Xue, Aiguo;Jiang, Haomin;Cheng, Yujuan;Ren, Yuan;Sun, Yanzhi;Chen, Yongmei. And the article was included in BioResources in 2020.Related Products of 103-16-2 The following contents are mentioned in the article:

Lignin depolymerization through an oxidation method could provide value-added products, but it is challenging in terms of recovering catalysts or separating products in time to avoid over-oxidation In this study, a process of selectively oxidative degradation of lignin model compounds was operated in a two-phase reaction system. Lignin model compounds of 4-benzyloxyphenol (PBP) or guaiacylglycerol-β-guaiacyl ether (GGE) in a bottom phase of 1-butyl-3-methylimidazole chloride ([BMIM]Cl) ionic liquid were selectively oxidized by H₂O₂ in the presence of a solid acid (SO₄^2-/Fe₂O₃-ZrO₂), and the degradation products immediately diffused into the upper organic solvent phase (Bu acetate). In this kind of reaction system, the yield of the products was improved due to the prolonged life of ·OH in ionic liquid, and the product selectivity was maintained due to the timely product separation, and the ionic liquid and the catalyst were easily recycled. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Related Products of 103-16-2).

4-Benzyloxyphenol (cas: 103-16-2) belongs to ethers. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Related Products of 103-16-2

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

A two-phase reaction system for selective oxidative degradation of lignin model compounds was written by Chen, Yueying;Xue, Aiguo;Jiang, Haomin;Cheng, Yujuan;Ren, Yuan;Sun, Yanzhi;Chen, Yongmei. And the article was included in BioResources in 2020.Recommanded Product: 103-16-2 The following contents are mentioned in the article:

Lignin depolymerization through an oxidation method could provide value-added products, but it is challenging in terms of recovering catalysts or separating products in time to avoid over-oxidation In this study, a process of selectively oxidative degradation of lignin model compounds was operated in a two-phase reaction system. Lignin model compounds of 4-benzyloxyphenol (PBP) or guaiacylglycerol-β-guaiacyl ether (GGE) in a bottom phase of 1-butyl-3-methylimidazole chloride ([BMIM]Cl) ionic liquid were selectively oxidized by H₂O₂ in the presence of a solid acid (SO₄^2-/Fe₂O₃-ZrO₂), and the degradation products immediately diffused into the upper organic solvent phase (Bu acetate). In this kind of reaction system, the yield of the products was improved due to the prolonged life of ·OH in ionic liquid, and the product selectivity was maintained due to the timely product separation, and the ionic liquid and the catalyst were easily recycled. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Recommanded Product: 103-16-2).

4-Benzyloxyphenol (cas: 103-16-2) belongs to ethers. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Recommanded Product: 103-16-2

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Existence of β-diketone form of curcuminoids revealed by NMR spectroscopy was written by Prasad, Durga;Praveen, Aishwarya;Mahapatra, Sipra;Mogurampelly, Santosh;Chaudhari, Sachin R.. And the article was included in Food Chemistry in 2021.Product Details of 33171-05-0 The following contents are mentioned in the article:

Curcumin (CUR), demethoxycurcumin (DMC) and bisdemethoxycurcumin (BDMC) – the class of natural compound derived from turmeric can exist as keto-enol and beta-diketone tautomer form. The structure and dynamics of particular relevance CUR is reported in prior studies, whereas DMC and BDMC, by far, have not been scrutinized. In the present studies, we have investigated the detailed mol. structure of CUR, DMC and BDMC by employing NMR spectroscopy as a key tool. The bridging carbon as methylene in beta-diketone form and methine in keto-enol form shows significant difference in NMR spectrum. The results justified that Curcuminoids (CC) has nearly 3% of beta-diketone tautomer in DMSO solvent at 298 K. Further, results revealed that beta-diketone form was favored in alk. pH condition whereas acidic and neutral pH conditions favor keto-enol tautomer. However, at higher temperature equilibrium shift towards beta-diketone tautomer. Moreover, this is the first report by NMR for observing the presence of beta-diketone tautomer. This study involved multiple reactions and reactants, such as Bisdemethoxycurcumin (cas: 33171-05-0Product Details of 33171-05-0).

Bisdemethoxycurcumin (cas: 33171-05-0) belongs to ethers. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Product Details of 33171-05-0

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Relating sensory analysis with SPME-GC-MS data for Spanish-style green table olive aroma profiling was written by Lopez-Lopez, Antonio;Sanchez, Antonio Higinio;Cortes-Delgado, Amparo;de Castro, Antonio;Montano, Alfredo. And the article was included in LWT–Food Science and Technology in 2018.Application In Synthesis of 4-Hydroxy-3-methoxyphenethanol The following contents are mentioned in the article:

The sensory profile and volatile composition of 24 samples of Spanish-style green table olives were studied by Quant. Descriptive Anal. and solid phase micro-extraction gas chromatog. coupled to mass spectrometry (SPME-GC-MS), resp., with the aim to characterize this type of table olive. The aroma of samples was described by the sensory panel using nine descriptors (lactic, green fruit, ripe fruit, grass, hay, musty, lupin, wine, and alc.). A total of 133 volatile compounds were identified in the headspace of samples. Principal component anal. (PCA) applied to both datasets showed a poor separation of samples according to cultivars, but a trend to sep. according to sampling time. Reliable partial least squares (PLS) regression models were developed for four sensory descriptors (lactic, lupin, wine, and alc.) and allowed identifying the compounds both pos. and neg. correlated to such odor sensations. Such models could be used to predict the intensity of the above-mentioned descriptors as a function of SPME-GC-MS data. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Application In Synthesis of 4-Hydroxy-3-methoxyphenethanol).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Application In Synthesis of 4-Hydroxy-3-methoxyphenethanol

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Lipid-Oriented Live-Cell Distinction of B and T Lymphocytes was written by Kwon, Haw-Young;Kumar Das, Raj;Jung, Gun Tae;Lee, Hong-Guen;Lee, Sun Hyeok;Berry, Stuart N.;Tan, Justin Kok Soon;Park, Solip;Yang, Jae-Seong;Park, Soohyun;Baek, Kangkyun;Park, Kyeng Min;Lee, Jae Won;Choi, Yun-Kyu;Kim, Ki Hean;Kim, Sangho;Kim, Kwang Pyo;Kang, Nam-Young;Kim, Kimoon;Chang, Young-Tae. And the article was included in Journal of the American Chemical Society in 2021.Product Details of 109-85-3 The following contents are mentioned in the article:

The identification of each cell type is essential for understanding multicellular communities. Antibodies set as biomarkers have been the main toolbox for cell-type recognition, and chem. probes are emerging surrogates. Herein we report the first small-mol. probe, CDgB, to discriminate B lymphocytes from T lymphocytes, which was previously impossible without the help of antibodies. Through the study of the origin of cell specificity, we discovered an unexpected novel mechanism of membrane-oriented live-cell distinction. B cells maintain higher flexibility in their cell membrane than T cells and accumulate the lipid-like probe CDgB more preferably. Because B and T cells share common ancestors, we tracked the cell membrane changes of the progenitor cells and disclosed the dynamic reorganization of the membrane properties over the lymphocyte differentiation progress. This study casts an orthogonal strategy for the small-mol. cell identifier and enriches the toolbox for live-cell distinction from complex cell communities. This study involved multiple reactions and reactants, such as 2-Methoxyethylamine (cas: 109-85-3Product Details of 109-85-3).

2-Methoxyethylamine (cas: 109-85-3) belongs to ethers. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Product Details of 109-85-3

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Hydrophilic silicon nanoparticles as turn-off and colorimetric fluorescent probe for curcuminoids detection in food samples and cell imaging was written by Li, Qin-Ying;Wang, Ya-Qian;Jiang, Ming;Cui, Yuanyuan;Yu, Xu;Xu, Li. And the article was included in Food Chemistry in 2022.Reference of 33171-05-0 The following contents are mentioned in the article:

Hydrophilic fluorescent silicon nanoparticles (SiNPs) with good pH stability, salt-tolerance and anti-photobleaching were for the first time prepared from hydrophobic 3-glycidoxypropyltrimethoxysilane. Employing SiNPs as the fluorescence probe, selective quantification of curcuminoids based on the quenching effect was realized with a linearity of 0.046-7.4μg/mL and a limit of detection of 17.6 ng/mL. Moreover, in light of fluorescence red shift of SiNPs corresponding to the elevated concentration of curcuminoids, a fluorescence colorimetric method was established based on only one extra probe, i.e. herein SiNPs. Thus, semi-quantification of curcuminoids (0-14.7μg/mL) was visualized from blue to yellow color. Both the developed quant. and semi-quant. probe were successfully applied to determine curcuminoids in various actual food samples. Furthermore, SiNPs possessed low cytotoxicity and succeeded in intracellular curcuminoids imaging. The proposed SiNPs could be a promising fluorescence probe for multiple applications. This study involved multiple reactions and reactants, such as Bisdemethoxycurcumin (cas: 33171-05-0Reference of 33171-05-0).

Bisdemethoxycurcumin (cas: 33171-05-0) belongs to ethers. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Reference of 33171-05-0

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Quantum Dot-Catalyzed Photoreductive Removal of Sulfonyl-Based Protecting Groups was written by Perez, Kaitlyn A.;Rogers, Cameron R.;Weiss, Emily A.. And the article was included in Angewandte Chemie, International Edition in 2020.HPLC of Formula: 103-16-2 The following contents are mentioned in the article:

This Communication describes the use of CuInS₂/ZnS quantum dots (QDs) as photocatalysts for the reductive deprotection of aryl sulfonyl-protected phenols. For a series of aryl sulfonates with electron-withdrawing substituents, the rate of deprotection for the corresponding Ph aryl sulfonates increases with decreasing electrochem. potential for the two electron transfers within the catalytic cycle. The rate of deprotection for a substrate that contains a carboxylic acid, a known QD-binding group, is accelerated by more than a factor of ten from that expected from the electrochem. potential for the transformation, a result that suggests that formation of metastable electron donor-acceptor complexes provides a significant kinetic advantage. This deprotection method does not perturb the common NHBoc or toluenesulfonyl protecting groups and, as demonstrated with an estrone substrate, does not perturb proximate ketones, which are generally vulnerable to many chem. reduction methods used for this class of reactions. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2HPLC of Formula: 103-16-2).

4-Benzyloxyphenol (cas: 103-16-2) belongs to ethers. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.HPLC of Formula: 103-16-2

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Quantum Dot-Catalyzed Photoreductive Removal of Sulfonyl-Based Protecting Groups was written by Perez, Kaitlyn A.;Rogers, Cameron R.;Weiss, Emily A.. And the article was included in Angewandte Chemie, International Edition in 2020.Product Details of 103-16-2 The following contents are mentioned in the article:

This Communication describes the use of CuInS₂/ZnS quantum dots (QDs) as photocatalysts for the reductive deprotection of aryl sulfonyl-protected phenols. For a series of aryl sulfonates with electron-withdrawing substituents, the rate of deprotection for the corresponding Ph aryl sulfonates increases with decreasing electrochem. potential for the two electron transfers within the catalytic cycle. The rate of deprotection for a substrate that contains a carboxylic acid, a known QD-binding group, is accelerated by more than a factor of ten from that expected from the electrochem. potential for the transformation, a result that suggests that formation of metastable electron donor-acceptor complexes provides a significant kinetic advantage. This deprotection method does not perturb the common NHBoc or toluenesulfonyl protecting groups and, as demonstrated with an estrone substrate, does not perturb proximate ketones, which are generally vulnerable to many chem. reduction methods used for this class of reactions. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Product Details of 103-16-2).

4-Benzyloxyphenol (cas: 103-16-2) belongs to ethers. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Product Details of 103-16-2

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem