Month: November 2022

Stereospecific Cross Couplings To Set Benzylic, All-Carbon Quaternary Stereocenters in High Enantiopurity was written by Zhou, Qi;Cobb, Kelsey M.;Tan, Tianyu;Watson, Mary P.. And the article was included in Journal of the American Chemical Society in 2016.Reference of 1003858-50-1 The following contents are mentioned in the article:

Asym. preparation of all-carbon quaternary stereocenters is an important goal. Despite advances in formation of highly enantioenriched products with quaternary stereocenters proximal to a functional group, methods to install quaternary stereocenters isolated from functional groups are limited. Transition metal catalysis offers a potential solution, but prior cross couplings are limited to allylic substrates or deliver little to no enantiomeric enrichment. We report a stereospecific, nickel-catalyzed Suzuki-Miyaura arylation of tertiary benzylic acetates to deliver products with diaryl and triaryl quaternary stereocenters in high yields and ee’s. This reaction employs an inexpensive, air-stable Ni(II) salt and com. available phosphine ligand to transform tertiary alc. derivatives, which are easily available in exceptional ee, into valuable products with stereoretention. This study involved multiple reactions and reactants, such as 2-(3-Methoxyphenyl)-5,5-dimethyl-1,3,2-dioxaborinane (cas: 1003858-50-1Reference of 1003858-50-1).

2-(3-Methoxyphenyl)-5,5-dimethyl-1,3,2-dioxaborinane (cas: 1003858-50-1) 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. 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.Reference of 1003858-50-1

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

Shedding light on curcumin stability was written by Appendino, Giovanni;Allegrini, Pietro;de Combarieu, Eric;Novicelli, Federico;Ramaschi, Giuseppe;Sardone, Nicola. And the article was included in Fitoterapia in 2022.Synthetic Route of C19H16O4 The following contents are mentioned in the article:

The stability of mol. curcumin (purcumin, 1a) in solution is strongly light-dependent. Under laboratory artificial light, a relative stability is observed only at neutral pH, while more intense light and/or solar light can trigger degradation via a combination of hydrolytic and oxidative fragmentation of the heptadiendione moiety. Minor curcuminoids in com. curcumin (purcuminoids) can improve the stability of mol. curcumin, but only under conditions of low irradiation While confirming earlier observations alerting to the instability of purcumin, our results provide new rationales for unexplained differences between previous studies, question the biol. relevance of a non-enzymic degradation for the bioactivity profiles that have been reported for purcumin, and highlight the need of a better characterization of the degradation of purcuminoids under visible light irradiation This study involved multiple reactions and reactants, such as Bisdemethoxycurcumin (cas: 33171-05-0Synthetic Route of C19H16O4).

Bisdemethoxycurcumin (cas: 33171-05-0) 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.Synthetic Route of C19H16O4

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

Predicting Flash Points of Pure Compounds and Mixtures with COSMO-RS was written by Reinisch, Jens;Klamt, Andreas. And the article was included in Industrial & Engineering Chemistry Research in 2015.Related Products of 112-59-4 The following contents are mentioned in the article:

Flash point (FP) is an important parameter to assess chem. compound safety. Many empirical approaches have been developed to predict FP based on mol. structure, sometimes involving a large number of descriptors and resulting in class-specific equations. This work demonstrated that a satisfying, rather general prediction of saturation pressure at the FP can be achieved using only mol. surface area. This relation in conjunction with any exptl. or computational method to calculate temperature-dependent vapor pressures allows for the FP predictions. In a second step, chem. mixture FP were calculated using COSMO-RS activity coefficients Using the proposed method, FP were calculated without needing data typically generated in experiments (normal b.p., combustion enthalpy), although exptl. pure-compound FP and vapor pressure data can still be used to increase prediction quality. This study involved multiple reactions and reactants, such as 2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4Related Products of 112-59-4).

2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4) 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.Related Products of 112-59-4

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

Hydrothermal conversion of biomass (Xanthium strumarium) to energetic materials and comparison with other thermochemical methods was written by Durak, Halil;Genel, Yasar. And the article was included in Journal of Supercritical Fluids in 2018.Synthetic Route of C9H12O3 The following contents are mentioned in the article:

In the present study, the biomass was converted into liquid and solid residues by using hydrothermal liquefaction method at 250, 300 and 350°C with (FeCl₃, NaOH) and without catalyst. The resultant products were examined using GC-MS, FT-IR, ¹H NMR, SEM, and elemental anal. methods. According to the performed analyses, the highest liquid product yield (total bio-oil) was found to be 38.08% at 300°C by using FeCl₃ as catalyst. In the experiments carried out at 350°C, the highest HHV value was found to be 32.35 MJ kg^-1 by using NaOH catalyst. The energy values of products obtained at the end of experiments were compared to the values obtained from pyrolysis and supercritical liquefaction method, and it was determined that the liquid products having higher level of energy value were achieved by using hydrothermal liquefaction method. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Synthetic Route of C9H12O3).

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. 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.Synthetic Route of C9H12O3

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

Constructing chiral bicyclo[3.2.1]octanes via palladium-catalyzed asymmetric tandem Heck/carbonylation desymmetrization of cyclopentenes was written by Yuan, Zhenbo;Zeng, Yuye;Feng, Ziwen;Guan, Zhe;Lin, Aijun;Yao, Hequan. And the article was included in Nature Communications in 2020.Related Products of 103-16-2 The following contents are mentioned in the article:

A palladium-catalyzed asym. tandem Heck/carbonylation desymmetrization of cyclopentenes I (R = COMe, CO₂Et; R¹ = H, F, Cl, Me, OMe; X = I, Br) has been described. Alcs., (such as., n-propanol, isopropanol, cyclohexanol, etc.) phenols (such as., 4-methylphenol, biphenyl-4-ol, naphthol, etc.) and amines (such as., pyrrolidine, morpholine, benzylamine, etc.) are employed as versatile coupling reagents for the construction of multifunctional chiral bicyclo[3.2.1]octanes II (R² = OMe, OEt, OPh, pyrrolidino, morpholino, thiomorpholino, etc.) with one all-carbon quaternary and two tertiary carbon stereogenic centers in high diastereo- and enantioselectivities. This study represents an important progress in both the asym. tandem Heck/carbonylation reactions and enantioselective difunctionalization of internal alkenes. 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 typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. 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. Related Products of 103-16-2

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

Constructing chiral bicyclo[3.2.1]octanes via palladium-catalyzed asymmetric tandem Heck/carbonylation desymmetrization of cyclopentenes was written by Yuan, Zhenbo;Zeng, Yuye;Feng, Ziwen;Guan, Zhe;Lin, Aijun;Yao, Hequan. And the article was included in Nature Communications in 2020.Application of 103-16-2 The following contents are mentioned in the article:

A palladium-catalyzed asym. tandem Heck/carbonylation desymmetrization of cyclopentenes I (R = COMe, CO₂Et; R¹ = H, F, Cl, Me, OMe; X = I, Br) has been described. Alcs., (such as., n-propanol, isopropanol, cyclohexanol, etc.) phenols (such as., 4-methylphenol, biphenyl-4-ol, naphthol, etc.) and amines (such as., pyrrolidine, morpholine, benzylamine, etc.) are employed as versatile coupling reagents for the construction of multifunctional chiral bicyclo[3.2.1]octanes II (R² = OMe, OEt, OPh, pyrrolidino, morpholino, thiomorpholino, etc.) with one all-carbon quaternary and two tertiary carbon stereogenic centers in high diastereo- and enantioselectivities. This study represents an important progress in both the asym. tandem Heck/carbonylation reactions and enantioselective difunctionalization of internal alkenes. This study involved multiple reactions and reactants, such as 4-Benzyloxyphenol (cas: 103-16-2Application of 103-16-2).

4-Benzyloxyphenol (cas: 103-16-2) belongs to ethers. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. 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. Application of 103-16-2

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

Antiproliferative properties of Papaver rhoeas ovule extracts and derived fractions tested on HL60 leukemia human cells was written by Ovidi, Elisa;Masci, Valentina Laghezza;Garzoli, Stefania;Gambellini, Gabriella;Keita, Saran Vittoria;Zago, Daniele;Turchetti, Giovanni;Modesti, Lorenzo;Tiezzi, Antonio. And the article was included in Molecules in 2020.Computed Properties of C10H22O3 The following contents are mentioned in the article:

Papaver rhoeas plant is common in many regions worldwide and contributes to the landscape with its red flower. In the present study we first carried out morphol. investigation by optical and SEM of the ovules within the ovary. After ovules’ isolation we prepared extracts to test possible cytotoxic activities on HL60 leukemia human cells and investigated the extracts using thin-layer chromatog. (TLC) and gas-chromatog./mass spectrometry (GC-MS). P. rhoeas ovules showed an elongated, round shape and the presence of ordered sculptures on the ovule surface. The ovule extracts showed cytotoxic activity on HL60 human cells mainly found in some TLC-isolated spots. Compounds consisting of active spots were identified by GC-MS investigations. Our findings on the P. rhoeas ovule compounds open perspectives for further investigations of TLC-isolated spots on other human cancer cell lines. This study involved multiple reactions and reactants, such as 2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4Computed Properties of C10H22O3).

2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4) 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. 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.Computed Properties of C10H22O3

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

Aqueous solution behavior of cationic surfactant modulated by the presence of glycols and their ethers was written by Chavda, Suresh;Singh, Kulbir;Marangoni, D. Gerrard;Bahadur, Pratap. And the article was included in Bulletin of the Chemical Society of Japan in 2012.Electric Literature of C10H22O3 The following contents are mentioned in the article:

The effect of ethylene glycol (EG), diethylene glycol (DEG) and their monoalkyl (C₁-C₆) ethers (cellosolves and carbitols) and di-Me ethers (glymes and diglymes) on the micellar behavior of a cationic surfactant tetradecyltrimethylammonium bromide (TTAB) in aqueous solution was examined from elec. conductivity measurements. The effect of these additives on critical micelle concentration (CMC) and degree of counter ion dissociation (α) is evaluated. While both EG, DEG, their monomethyl/monoethyl ethers and di-Me ethers increased CMC and α, for monobutyl and monohexyl ethers a decrease in CMC was noticed at studied concentration For all ethers, the α values increased with concentration NOESY experiments confirmed the location of glycol ethers in micellar solution The results are discussed in terms of effect of ethers on water structure and solvent properties. This study involved multiple reactions and reactants, such as 2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4Electric Literature of C10H22O3).

2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4) 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. Electric Literature of C10H22O3

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

Nonionic microemulsions with chlorinated hydrocarbons for catalysis was written by Egger, H.;Sottmann, T.;Strey, R.;Valero, C.;Berkessel, A.. And the article was included in Tenside, Surfactants, Detergents in 2002.Quality Control of 2-(2-(Hexyloxy)ethoxy)ethanol The following contents are mentioned in the article:

N-alkyl glycosides were found capable of solubilizing chlorinated oils into microemulsions. Interestingly, the ternary systems with such polar oils frequently used in organic syntheses show a temperature-dependent phase inversion within the exptl. window, which is absent with n-alkanes as the oil component. For comparison, the usefulness of the well-known class of n-alkyl polyglycol ethers is also examined The investigations show important differences in phase behavior, depending on whether the “hydrophobicity” of the oil is changed by altering the hydrocarbon chain length or the polarity. In addition, our studies reveal variations in the Krafft boundary of the glyco-surfactant systems using different chlorinated hydrocarbons. In a set of preliminary reaction experiments in these ternary micro-emulsions, the epoxidation of olefins with manganese dihydrosalen catalysts is studied. This study involved multiple reactions and reactants, such as 2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4Quality Control of 2-(2-(Hexyloxy)ethoxy)ethanol).

2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4) 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. 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. Quality Control of 2-(2-(Hexyloxy)ethoxy)ethanol

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

Investigating the Structure-Activity Relationship of 1,2,4-Triazine G-Protein-Coupled Receptor 84 (GPR84) Antagonists was written by Mahindra, Amit;Jenkins, Laura;Marsango, Sara;Huggett, Mark;Huggett, Margaret;Robinson, Lindsay;Gillespie, Jonathan;Rajamanickam, Muralikrishnan;Morrison, Angus;McElroy, Stuart;Tikhonova, Irina G.;Milligan, Graeme;Jamieson, Andrew G.. And the article was included in Journal of Medicinal Chemistry in 2022.Electric Literature of C3H9NO The following contents are mentioned in the article:

G-protein-coupled receptor 84 (GPR84) is a proinflammatory orphan G-protein-coupled receptor implicated in several inflammatory and fibrotic diseases. Several agonist and antagonist ligands have been developed that target GPR84; however, a noncompetitive receptor blocker that was progressed to phase II clin. trials failed to demonstrate efficacy. New high-quality antagonists are required to investigate the pathophysiol. role of GPR84 and to validate GPR84 as a therapeutic target. Here, authors describe an extensive structure-activity relationship (SAR) of antagonist compound I and also present in silico docking with supporting mutagenesis studies that reveals a potential binding pose for this type of orthosteric antagonist. Lead compound II is a potent GPR84 antagonist with a favorable pharmacokinetic (PK) profile suitable for further drug development. This study involved multiple reactions and reactants, such as 2-Methoxyethylamine (cas: 109-85-3Electric Literature of C3H9NO).

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, including apples, durians, pears, bananas, pineapples, and strawberries. 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.Electric Literature of C3H9NO

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