Category: ethers-buliding-blocks

Simple method to assess autoignition temperature of organic ether compounds with high reliability for process safety was written by Nazari, Behzad;Keshavarz, Mohammad Hossein;Roohi, Fatemeh. And the article was included in Journal of Thermal Analysis and Calorimetry in 2022.Quality Control of 2-Methoxyethylamine The following contents are mentioned in the article:

The knowledge of autoignition temperature (AIT) for organic ether compounds is essential because they usually have low m.ps. where their leakage can provide potential hazard of flammability during heating. Since the reported data of the AIT for different types of ether materials are scarce, special attention in industries and processes should be considered for handling, transport, and storage of these compounds with the unknown values of the AIT. Due to the potential hazard of flammability of organic ether compounds, it is important to have a reliable method for prediction of their AIT than available methods. This work introduces the initial and the improved correlations for estimating the values of the AIT of different categories of organic ether compounds including complex structures and polar groups. The initial correlation is based on the number of carbon and hydrogen atoms but the improved correlation contains two further correcting variables. Different statistical parameters are used to assess the high trustworthy of the improved correlation as compared to two of the best available predictive methods. For 115 organic ether compounds given in training and test sets, the value of Mean Absolute Percent Error (MAPE) of the improved model is 5.93, which is much less than two comparative methods, i.e., 18.96 and 12.69. This study involved multiple reactions and reactants, such as 2-Methoxyethylamine (cas: 109-85-3Quality Control of 2-Methoxyethylamine).

2-Methoxyethylamine (cas: 109-85-3) 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. 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.Quality Control of 2-Methoxyethylamine

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

Discovery of N-amido-phenylsulfonamide derivatives as novel microsomal prostaglandin E₂ synthase-1 (mPGES-1) inhibitors was written by Kim, Misong;Kim, Geuntae;Kang, Minji;Ko, Dohyeong;Nam, Yunchan;Moon, Chang Sang;Kang, Heung Mo;Shin, Ji-Sun;Werz, Oliver;Lee, Kyung-Tae;Lee, Jae Yeol. And the article was included in Bioorganic & Medicinal Chemistry Letters in 2021.Application In Synthesis of 4-Benzyloxyphenol The following contents are mentioned in the article:

Our previous research showed that N-carboxy-phenylsulfonyl hydrazide (scaffold A) could reduce LPS-stimulated PGE₂ levels in RAW 264.7 macrophage cells by an inhibition of mPGES-1 enzyme. However, a number of scaffold A derivatives showed the drawbacks such as the formation of regioisomers and poor liver metabolic stability. In order to overcome these synthetic and metabolic problems, therefore, we decided to replace N-carboxy-phenylsulfonyl hydrazide (scaffold A) with N-carboxy-phenylsulfonamide (scaffold B) or N-amido-phenylsulfonamide frameworks (scaffold C) as a bioisosteric replacement. Among them, MPO-0186 (scaffold C) inhibited the production of PGE₂ (IC₅₀: 0.24μM) in A549 cells via inhibition of mPGES-1 (IC₅₀: 0.49μM in a cell-free assay) and was found to be approx. 9- and 8-fold more potent than MK-886 as a reference inhibitor, resp. A mol. docking study theor. suggests that MPO-0186 could inhibit PGE₂ production by blocking the PGH₂ binding site of mPGES-1 enzyme. Furthermore, MPO-0186 demonstrated good liver metabolic stability and no significant inhibition observed in clin. relevant CYP isoforms except CYP2C19. This result provides a potential starting point for the development of selective and potent mPGES-1 inhibitor with a novel scaffold. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Application In Synthesis of 4-Benzyloxyphenol).

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. 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.Application In Synthesis of 4-Benzyloxyphenol

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

Discovery of N-amido-phenylsulfonamide derivatives as novel microsomal prostaglandin E₂ synthase-1 (mPGES-1) inhibitors was written by Kim, Misong;Kim, Geuntae;Kang, Minji;Ko, Dohyeong;Nam, Yunchan;Moon, Chang Sang;Kang, Heung Mo;Shin, Ji-Sun;Werz, Oliver;Lee, Kyung-Tae;Lee, Jae Yeol. And the article was included in Bioorganic & Medicinal Chemistry Letters in 2021.SDS of cas: 103-16-2 The following contents are mentioned in the article:

Our previous research showed that N-carboxy-phenylsulfonyl hydrazide (scaffold A) could reduce LPS-stimulated PGE₂ levels in RAW 264.7 macrophage cells by an inhibition of mPGES-1 enzyme. However, a number of scaffold A derivatives showed the drawbacks such as the formation of regioisomers and poor liver metabolic stability. In order to overcome these synthetic and metabolic problems, therefore, we decided to replace N-carboxy-phenylsulfonyl hydrazide (scaffold A) with N-carboxy-phenylsulfonamide (scaffold B) or N-amido-phenylsulfonamide frameworks (scaffold C) as a bioisosteric replacement. Among them, MPO-0186 (scaffold C) inhibited the production of PGE₂ (IC₅₀: 0.24μM) in A549 cells via inhibition of mPGES-1 (IC₅₀: 0.49μM in a cell-free assay) and was found to be approx. 9- and 8-fold more potent than MK-886 as a reference inhibitor, resp. A mol. docking study theor. suggests that MPO-0186 could inhibit PGE₂ production by blocking the PGH₂ binding site of mPGES-1 enzyme. Furthermore, MPO-0186 demonstrated good liver metabolic stability and no significant inhibition observed in clin. relevant CYP isoforms except CYP2C19. This result provides a potential starting point for the development of selective and potent mPGES-1 inhibitor with a novel scaffold. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2SDS of cas: 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. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. SDS of cas: 103-16-2

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

Catalytic depolymerization of lignin via transfer hydrogenation strategy over skeletal CuZnAl catalyst was written by Huang, Yao-Bing;Zhang, Ji-Long;Zhang, Xuan;Luan, Xue;Chen, Hao-Ze;Hu, Bin;Zhao, Li;Wu, Yu-Long;Lu, Qiang. And the article was included in Fuel Processing Technology in 2022.Application In Synthesis of 4-Benzyloxyphenol The following contents are mentioned in the article:

Selective cleavage of the aromatic C-O bonds in lignin is a crucial step for lignin valorization to produce value-added chems., however, the development of efficient catalysts for mild conversions is still challenging. Herein, non-precious skeletal CuZnAl catalysts were firstly reported for the depolymerization of lignin dimers and real organosolv lignin via the catalytic transfer hydrogenation (CTH) method. Typical lignin dimers, including α-O-4, β-O-4 and 4-O-5 types, were all effectively converted to the corresponding aromatics and alcs. in isopropanol under mild reaction condition. Furthermore, birch organosolv lignin was also well depolymerized into monophenols in 56.1 wt% yield. Experiments revealed that the water brought by the wet catalyst effectively promoted the C-O bond cleavage, but slightly decreased the catalyst reactivity toward hydrogenation in isopropanol. Reaction evolution profiles and control experiments suggested that three reaction pathways were included, with the C-O ether bond cleavage and subsequent hydrogenolysis taking precedence over the dehydrogenation or hydrodeoxygenation routes. This work provides an economical and environmentally-friendly method for the selective cleavage of lignin and lignin model compounds into value-added chems., which holds great promise in industrial application. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Application In Synthesis of 4-Benzyloxyphenol).

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. 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.Application In Synthesis of 4-Benzyloxyphenol

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

Deep catalytic hydroconversion of straw-derived bio-oil to alkanes over mesoporous zeolite Y supported nickel nanoparticles was written by Kang, Yu-Hong;Wei, Xian-Yong;Zhang, Xiao-Qi;Li, Yan-Jun;Liu, Guang-Hui;Ma, Xiang-Rong;Li, Xiao;Bai, Hong-Cun;Li, Zhen-Ni;Yan, Hai-Jun;Zong, Zhi-Min. And the article was included in Renewable Energy in 2021.Recommanded Product: 2380-78-1 The following contents are mentioned in the article:

A supported nickle catalyst was prepared by loading ca. 11% of nickel nanoparticles (NNPs) on mesoporous zeolite Y (MZY) and denoted as Ni11%/MZY. A straw was methanolyzed at 300 °C to obtain methanol-soluble portion as a straw-derived bio-oil (SDBO) in the yield of 19.3%. According to the anal. with a gas chromatograph/mass spectrometer, SDBO consists of arenes (7.8%), oxygen-containing organic compounds (82.8%), nitrogen-containing organic compounds (6.3%), and sulfur-containing organic compounds (3.1%). It was subjected to catalytic hydroconversion (CHC) over Ni11%/MZY in n-hexane under 5 MPa of initial hydrogen pressure (IHP) at 160 °C for 16 h. As a result, all the compounds in SDBO were converted to chain alkanes (60.1%) and cyclanes (39.9%). In Ni11%/MZY, uniformly dispersed NNPs and strong Lewis acid sites in the defective crystal texture of MYZ play crucial roles in hydrogenating aromatic rings and removing heteroatoms (HAs), resp. Benzyloxybenzene (BOB) was used as a lignin-related model compound The main product from the CHC of BOB over Ni11%/MZY in n-hexane under 5 MPa of IHP at 160 °C for 2 h is methylcyclohexane in the yield of 90.9%, indicating that both hydrogenation of benzene rings and deoxygenation significantly proceeded. After being recycled 4 times, Ni11%/MZY is still active for the CHC of BOB. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Recommanded Product: 2380-78-1).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) 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. 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.Recommanded Product: 2380-78-1

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

Influence of pre-fermentative addition of aqueous solution tannins extracted from oak wood (Quercus petraea) on the composition of Grillo wines was written by Corona, Onofrio;Bambina, Paola;De Filippi, Diego;Cinquanta, Luciano. And the article was included in European Food Research and Technology in 2021.Recommanded Product: 2380-78-1 The following contents are mentioned in the article:

In this research, the chem. characterization of fixed and volatile compounds of two different tannins in aqueous solution (Pratiko L-Harvest and L-Fruit) extracted from oak wood, has been studied. The influence of the above tannins, at different concentrations, on the alc. fermentation kinetics and on the composition and sensorial characteristics of a white wine were then evaluated. The wines added tannins in aqueous solution compared to control wines showed significant differences in fixed compounds (colloids, polyphenols and ellagitannins) and volatile compounds (phenolic aldehydes, volatile phenols, furanic and piranic compounds). The differences of aqueous solution tannins extracted from oak wood were partly due to the drying/maturing and roasting methods used in barrel production Alc. fermentation was partially facilitated by the addition of tannins in aqueous solution The wines obtained showed a higher content of Et esters of medium-chain fatty acids (from 22 to 31%) and, in some cases, higher acetate alcs. (from 15 to 28%), relevant to the olfactory sensations provided to the wines. The tannins added to the must before fermentation also made it possible to obtain an addnl. supply of polyphenols (from 25 to 85%) able to induce more complex sensory profiles in the wines, with increased persistent taste notes. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Recommanded Product: 2380-78-1).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) 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, including apples, durians, pears, bananas, pineapples, and strawberries. 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.Recommanded Product: 2380-78-1

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

Chemical induced pathognomonic features observed in human vitiligo are mediated through miR-2909 RNomics pathway was written by Kaushik, Hitaishi;Kaul, Deepak;Kumaran, Muthu Sendhil;Parsad, Davinder. And the article was included in Journal of Dermatological Science in 2020.Formula: C13H12O2 The following contents are mentioned in the article:

This study was attempt to understand miR-2909 RNomics in vitiligo pathogenesis using MBEH treated primary melanocytes as an archetype cellular model because MBEH causes pathol. features indistinguishable from clin. vitiligo. Primary melanocytes were treated with MBEH and 4-TBP and the role of miR-2909 RNomics at transcriptional and translational level was explored through qRT-PCR, western blot anal., flow cytometry, immunocytochem., immunohistochem. and in silico binding affinities. 4 mm punch biopsies were also obtained from lesional sites of vitiligo patients to validate the results observed in cell culture experiments MBEH induced miR-2909 RNomics led to downregulation of MITF, TYR, TYRP1, and TYRP2 leading to decreased melanin synthesis which in turn is a characteristic trait of vitiligo. On the other hand, 4-TBP increased TGF-β which also has the intrinsic capacity to downregulate MITF leading to decreased melanin synthesis and thereby initiation of vitiligo. Based upon our results we propose a mol. pathway which has the inherent capacity to resolve the mechanism through which these chems. may induce vitiligo. This mechanism was also found to be involved in the lesional biopsies of vitiligo patients. These results could be exploited in better understanding the pathogenesis as well as in treatment of vitiligo. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Formula: C13H12O2).

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. 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.Formula: C13H12O2

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

Chemical induced pathognomonic features observed in human vitiligo are mediated through miR-2909 RNomics pathway was written by Kaushik, Hitaishi;Kaul, Deepak;Kumaran, Muthu Sendhil;Parsad, Davinder. And the article was included in Journal of Dermatological Science in 2020.Quality Control of 4-Benzyloxyphenol The following contents are mentioned in the article:

This study was attempt to understand miR-2909 RNomics in vitiligo pathogenesis using MBEH treated primary melanocytes as an archetype cellular model because MBEH causes pathol. features indistinguishable from clin. vitiligo. Primary melanocytes were treated with MBEH and 4-TBP and the role of miR-2909 RNomics at transcriptional and translational level was explored through qRT-PCR, western blot anal., flow cytometry, immunocytochem., immunohistochem. and in silico binding affinities. 4 mm punch biopsies were also obtained from lesional sites of vitiligo patients to validate the results observed in cell culture experiments MBEH induced miR-2909 RNomics led to downregulation of MITF, TYR, TYRP1, and TYRP2 leading to decreased melanin synthesis which in turn is a characteristic trait of vitiligo. On the other hand, 4-TBP increased TGF-β which also has the intrinsic capacity to downregulate MITF leading to decreased melanin synthesis and thereby initiation of vitiligo. Based upon our results we propose a mol. pathway which has the inherent capacity to resolve the mechanism through which these chems. may induce vitiligo. This mechanism was also found to be involved in the lesional biopsies of vitiligo patients. These results could be exploited in better understanding the pathogenesis as well as in treatment of vitiligo. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Quality Control of 4-Benzyloxyphenol).

4-Benzyloxyphenol (cas: 103-16-2) 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. 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.Quality Control of 4-Benzyloxyphenol

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

Virtual screening and drug repurposing experiments to identify potential novel selective MAO-B inhibitors for Parkinson’s disease treatment was written by Crisan, Luminita;Istrate, Daniela;Bora, Alina;Pacureanu, Liliana. And the article was included in Molecular Diversity in 2021.Recommanded Product: 4-Benzyloxyphenol The following contents are mentioned in the article:

The main study’s purpose is to detect novel natural products (NPs) that are potentially selective MAO-B inhibitors and, addnl., to computationally reposition the marketed drugs with a new therapeutic role for Parkinson’s disease. To reach the goals, 3D similarity search, docking, ADMETox, and drug repurposing approaches were employed. Thus, an unbiased benchmarking dataset was built including selective and nonselective inhibitors for MAO-B compliant with both ligand- and structure-based virtual screening approaches. A retrospective and prospective mining scenario was applied to SPECS NP and DrugBank databases to detect novel scaffolds with potential benefits for Parkinson’s disease patients. Out of the three best selected natural products, cardamomin showed excellently predicted drug-like properties, superior pharmacol. profile, and specific interactions with MAO-B active site, indicating a potential selectivity over MAO-B. Two marketed drugs, fenamisal and monobenzone, were proposed as promising candidates repurposed for Parkinson’s disease. The application of shape, physicochem., and electrostatic similarity searches protocol emerged as a plausible solution to explore MAO-B inhibitors selectivity. This protocol might serve as a rewarding tool in early drug discovery and can be extended to other protein targets. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Recommanded Product: 4-Benzyloxyphenol).

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 contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Recommanded Product: 4-Benzyloxyphenol

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

Structural elucidation of chiral (imino)pyridine/phosphine palladium(II) complexes and their applications as catalysts in methoxycarbonylation of styrene was written by Ngcobo, Nondumiso L.;Akiri, Saphan O.;Ogweno, Aloice O.;Ojwach, Stephen O.. And the article was included in Polyhedron in 2021.Safety of 2-Methoxyethylamine The following contents are mentioned in the article:

Treatment of ligands (S)-1-phenyl-N-(1-(pyridin-2-yl)ethylidene)ethanamine (L1), (R)-1-phenyl-N-(1-(pyridin-2-yl)ethylidene)ethanamine (L2), (S)-1-phenyl-N-((pyridin-2-yl)methylene)ethanamine (L3), (R)-1-phenyl-N-((pyridin-2-yl)methylene)ethanamine (L4), (S)-N-(2-(diphenylphosphino)benzylidene)-1-phenylethanamine (L5), and (R)-N-(2-(diphenylphosphino)benzylidene)-1-phenylethanamine (L6) with [Pd(COD)Cl₂] afforded the resp. palladium complexes [Pd(L1)Cl₂] (1), [Pd(L2)Cl₂] (2), [Pd(L3)Cl₂] (3), [Pd(L4)Cl₂] (4), [Pd(L5)Cl₂] (5) and [Pd(L6)Cl₂] (6) in high yields. Solid-state structures of the complexes established NN̂ and NP̂ bidentate coordination mode of the ligands to give distorted square planar geometries. Complexes 1–6 displayed moderate catalytic activities in the methoxycarbonylation of styrene, to give predominantly branched esters of up to 95%. NMR spectroscopy studies pointed to possible decomposition of the active species, via ligand dissociation This study involved multiple reactions and reactants, such as 2-Methoxyethylamine (cas: 109-85-3Safety of 2-Methoxyethylamine).

2-Methoxyethylamine (cas: 109-85-3) 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. 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.Safety of 2-Methoxyethylamine

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