Month: November 2022

On October 5, 2011, Arumugam, Selvanathan; Popik, Vladimir V. published an article.HPLC of Formula: 929-37-3 The title of the article was Patterned Surface Derivatization Using Diels-Alder Photoclick Reaction. And the article contained the following:

The utility of photochem. induced hetero-Diels-Alder reaction for the light-directed surface derivatization and patterning was demonstrated. Glass slides functionalized with vinyl ether moieties are covered with aqueous solution of substrates conjugated to 3-(hydroxymethyl)-2-naphthol (NQMP). Subsequent irradiation via shadow mask results in an efficient conversion of the latter functionality into reactive 2-naphthoquinone-3-methide (oNQM) in the exposed areas. ONQM undergoes very facile hetero Diels-Alder addition (kD-A ≈ 4 × 104 M-1s-1) to immobilized vinyl ether mols. resulting in a photochem. stable covalent link between a substrate and a surface. Unreacted oNQM groups are rapidly hydrated to regenerate NQMP. The click chem. based on the addition of photochem. generated oNQM to vinyl ether works well in aqueous solution, proceeds at high rate under ambient conditions, and does not require catalyst or addnl. reagents. This photoclick strategy represents an unusual paradigm in photopatterning: the surface itself is photochem. inert, while photoreactive component is present in the solution The short lifetime (τ ≈ 7 ms in H2O) of the active form of a photoclick reagent in aqueous solution prevents its migration from the site of irradiation, thus allowing for the spatial control of surface derivatization. Both o-naphthoquinone methide precursors and vinyl ethers are stable in dark and the reaction is orthogonal to other derivatization techniques, such as acetylene-azide click reaction. The experimental process involved the reaction of 2-(2-(Vinyloxy)ethoxy)ethanol(cas: 929-37-3).HPLC of Formula: 929-37-3

The Article related to photoinduced patterned surface derivatization hetero diels alder photoclick reaction, Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes: Radiation Chemistry and Photochemistry and other aspects.HPLC of Formula: 929-37-3

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

On May 20, 2022, Li, Yonglong; Wang, Teng; Wang, Ying; Deng, Zhijie; Zhang, Li; Zhu, Aonan; Huang, Yanmin; Zhang, Cancan; Yuan, Mingjian; Xie, Wei published an article.SDS of cas: 93-04-9 The title of the article was Tunable Photocatalytic Two-Electron Shuttle between Paired Redox Sites on Halide Perovskite Nanocrystals. And the article contained the following:

Perovskite semiconductors as advanced solar energy-converting materials are promising catalysts for photoredox organic synthesis. Despite the high concentration of charge carriers generated on the perovskite surface, efficient utilization of these nonequilibrium and shambolic energetic carriers to trigger a chem. reaction remains a hot and challenging subject. Here, we report a photon-mediated electron shuttle between paired redox sites on perovskite nanocrystals for the reformation of highly stable carbon-halogen bonds, where both surface electrons and holes are utilized simultaneously. The photo-redox cascade can be effortlessly tailored by precise control of the surface-reducing/-oxidizing reaction rates, which unlocks the transformation for a wide range of (het)arenes. This work demonstrates colloidal perovskite photocatalysts for the direct installation of more than 10 different synthetically important functional groups onto arenes and heteroarenes. The experimental process involved the reaction of 2-Methoxynaphthalene(cas: 93-04-9).SDS of cas: 93-04-9

The Article related to tunable photocatalytic two electron shuttle halide perovskite nanocrystal photocatalyst, Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes: Radiation Chemistry and Photochemistry and other aspects.SDS of cas: 93-04-9

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

On April 30, 2020, MacKenzie, Ian A.; Wang, Leifeng; Onuska, Nicholas P. R.; Williams, Olivia F.; Begam, Khadiza; Moran, Andrew M.; Dunietz, Barry D.; Nicewicz, David A. published an article.Safety of 1,2-Dimethoxybenzene The title of the article was Discovery and characterization of an acridine radical photoreductant. And the article contained the following:

Photoinduced electron transfer (PET) is a phenomenon whereby the absorption of light by a chem. species provides an energetic driving force for an electron-transfer reaction1-4. This mechanism is relevant in many areas of chem., including the study of natural and artificial photosynthesis, photovoltaics and photosensitive materials. In recent years, research in the area of photoredox catalysis has enabled the use of PET for the catalytic generation of both neutral and charged organic free-radical species. These technologies have enabled previously inaccessible chem. transformations and have been widely used in both academic and industrial settings. Such reactions are often catalyzed by visible-light-absorbing organic mols. or transition-metal complexes of ruthenium, iridium, chromium or copper5,6. Although various closed-shell organic mols. have been shown to behave as competent electron-transfer catalysts in photoredox reactions, there are only limited reports of PET reactions involving neutral organic radicals as excited-state donors or acceptors. This is unsurprising because the lifetimes of doublet excited states of neutral organic radicals are typically several orders of magnitude shorter than the singlet lifetimes of known transition-metal photoredox catalysts7-11. Here we document the discovery, characterization and reactivity of a neutral acridine radical with a maximum excited-state oxidation potential of -3.36 V vs. a SCE, which is similarly reducing to elemental lithium, making this radical one of the most potent chem. reductants reported12. Spectroscopic, computational and chem. studies indicate that the formation of a twisted intramol. charge-transfer species enables the population of higher-energy doublet excited states, leading to the observed potent photoreducing behavior. We demonstrate that this catalytically generated PET catalyst facilitates several chem. reactions that typically require alkali metal reductants and can be used in other organic transformations that require dissolving metal reductants. The experimental process involved the reaction of 1,2-Dimethoxybenzene(cas: 91-16-7).Safety of 1,2-Dimethoxybenzene

The Article related to intramol photoinduced electron transfer dehalogenation acridine detosylation photocatalyst photocatalysis, Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes: Radiation Chemistry and Photochemistry and other aspects.Safety of 1,2-Dimethoxybenzene

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

On March 15, 2012, Chen, Hua; Yang, Jinliang; Guo, Dongfang; Wang, Liyuan; Nie, Jun published an article.Product Details of 929-37-3 The title of the article was Photopolymerization kinetics of α-disulfone cationic photoinitiator. And the article contained the following:

An α-disulfone cationic photoinitiator called 4-tolyl Me disulfone was synthesized and characterized by UV-vis absorption spectroscopy, LCMS, IR and NMR. Eight vinyl ether monomers were chosen to study the kinetics of photopolymerization by real-time IR spectroscopy (FT-IR). It showed that 4-tolyl Me disulfone was an effective cationic photoinitiator. The rate of polymerization and ultimate conversion increased with increase of 4-tolyl Me disulfone concentration and light intensity. The experimental process involved the reaction of 2-(2-(Vinyloxy)ethoxy)ethanol(cas: 929-37-3).Product Details of 929-37-3

The Article related to disulfone cationic photoinitiator photopolymerization vinyl ether monomer, photolysis disulfone photopolymerization catalyst, Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes: Radiation Chemistry and Photochemistry and other aspects.Product Details of 929-37-3

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

Cao, Zhen; Bassani, Dario M.; Bibal, Brigitte published an article in 2018, the title of the article was Photoreduction of thioether gold(III) complexes: mechanistic insight and homogeneous catalysis.SDS of cas: 929-37-3 And the article contains the following content:

Complexes formed between AuCl3 and thioether ligands underwent a photoinduced reductive elimination under homogeneous conditions in dichloromethane and toluene solutions to afford the corresponding AuI complexes. All the gold(III) complexes were rapidly reduced to the gold(I) chloride complexes under 365 nm irradiation or ambient light while being thermally stable below 55 °C. The mechanism of photoreduction through Cl2 elimination is discussed based on a kinetic study and the chem. trapping of chlorine species: Cl2, radical Cl., and possibly Cl+. The catalytic activities of the gold(III) chloride complexes and the corresponding gold(I) complexes obtained by in situ reduction were evaluated in the cyclization of N-propargylic amides to oxazoles. The merits of such photoreducible complexes in homogeneous gold catalysis are illustrated by a cascade reaction catalyzed by thioether gold complexes that affords a 4H-quinolizin-4-one in high yields. The experimental process involved the reaction of 2-(2-(Vinyloxy)ethoxy)ethanol(cas: 929-37-3).SDS of cas: 929-37-3

The Article related to photoreduction gold cyclization catalyst amide oxazole thioether, gold, homogeneous catalysis, photoreduction, reaction mechanisms, reduction, thioether ligand, Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes: Radiation Chemistry and Photochemistry and other aspects.SDS of cas: 929-37-3

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

On December 20, 2018, Weiss, Matthias; Sulzer-Mosse, Sarah published a patent.Category: ethers-buliding-blocks The title of the patent was N-phenyl amidine derivatives used in fungicidal compositions and their preparation. And the patent contained the following:

The invention relates compounds of formula I and their use as fungicides. Compounds of formula I, wherein R1 is Et, isopropy and cyclopropyl, R2 is cyclopropyl, n-butoxymethyl, Ph, etc.; and salts, enantiomers, tautomers and N-oxides thereof, are claimed. Compound II was prepared by halogenation of 5-methoxy-2-methyl-aniline with N-bromosuccinimide to give 4-bromo-5-methoxy-2-methyl-aniline, the resulting compound underwent N-alkylation with N-(dimethoxymethyl)-N-methyl-ethanamine which resulted in compound II. Compounds of the invention were tested for their fungicidal activity (data given). The experimental process involved the reaction of 4-Bromo-5-methoxy-2-methylaniline(cas: 152626-77-2).Category: ethers-buliding-blocks

The Article related to phenyl amidine preparation fungicide phytopathogenic, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Amides, Amidines, Imidic Esters, Hydrazides, and Hydrazonic Esters and other aspects.Category: ethers-buliding-blocks

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

On September 30, 2022, Khanthong, Adisorn; Khamphaijun, Korawit; Ruengsuk, Araya; Docker, Andrew; Limpanuparb, Taweetham; Tantirungrotechai, Jonggol; Bunchuay, Thanthapatra published an article.Quality Control of 1,4-Dimethoxybenzene The title of the article was Pillar[4]arene[1]thioarenes: Synthesis and Host-Guest Binding Properties. And the article contained the following:

The synthesis and characterization of a novel class of pillar[4]arene[1]thioarenes I [R = Me, Et] was reported. An oxidation-thionation strategy was used to replace a single dialkoxybenzene panel in the parent pillar[5]arene. Spectroscopic(1H NMR) titration experiments, supported by d. functional theory computational studies, revealed that compound I [R = Me] showed starkly modulated host-guest binding properties for electron-deficient aliphatic guests. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Quality Control of 1,4-Dimethoxybenzene

The Article related to pillararenethioarene preparation binding property dft, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Higher-Membered Ring Systems, Including Cyclophanes and Fullerenes and other aspects.Quality Control of 1,4-Dimethoxybenzene

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

On December 21, 2001, Wu, Zhong-Liu; Li, Zu-Yi published an article.COA of Formula: C10H12O3 The title of the article was Enantioselective hydrolysis of various racemic α-substituted arylacetonitriles using Rhodococcus sp. CGMCC 0497. And the article contained the following:

The enantioselective hydrolysis of 17 racemic α-substituted arylacetonitriles by Rhodococcus sp. CGMCC 0497 is described. The corresponding (R)-amides and (S)-acids were obtained with excellent enantiomeric excess in most cases. The effect of steric and electronic factors on the outcome of the reactions are discussed here. The results prove that nitrile-converting enzymes are efficient tools for the synthesis of sterically unencumbered chiral α-arylpropionic acids and amides. The experimental process involved the reaction of (S)-2-(2-Methoxyphenyl)propanoic acid(cas: 81616-80-0).COA of Formula: C10H12O3

The Article related to enantioselective hydrolysis arylacetonitrile rhodococcus, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Amides, Amidines, Imidic Esters, Hydrazides, and Hydrazonic Esters and other aspects.COA of Formula: C10H12O3

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

Lu, Qixing; Wang, Tao; Wu, Qian; Cheng, Lijing; Luo, Han; Liu, Lei; Chu, Guobiao; Wang, Lufeng; Li, Baosheng published an article in 2022, the title of the article was C-H heteroarylation of aromatics via catalyst free SN2′ coupling cycloaromatization.Quality Control of 2-Methoxynaphthalene And the article contains the following content:

The construction of a carbon-carbon bond is the most fundamental aspect of synthetic chem. In this study, authors developed a catalyst-free SN2′ reaction of β-OTf-substituted enamides with aromatics to obtain aryl-substituted aza-1,4-dicarbonyl compounds that can be in situ transformed into aryl-imidazole, aryl-thiazole, and aryl-oxazole in one-pot operation, thus achieving C-H heteroarylation of aromatics This simple, efficient, clean and scalable strategy, which provides difficult-to-realize biaryl products, is compatible with various aromatics having varying complexities. This method can be used for the late-stage modification of various com. pharmaceuticals or functional materials and offers an orthogonal approach for constructing biaryl compounds The experimental process involved the reaction of 2-Methoxynaphthalene(cas: 93-04-9).Quality Control of 2-Methoxynaphthalene

The Article related to aromatic compound heteroarylation coupling cycloaromatization, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Amides, Amidines, Imidic Esters, Hydrazides, and Hydrazonic Esters and other aspects.Quality Control of 2-Methoxynaphthalene

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

On May 15, 2020, Verevkin, Sergey P.; Pimerzin, Andrey A.; Sun, Li-Xian published an article.Recommanded Product: 578-58-5 The title of the article was Structure-property relationships in substituted diphenyl ethers: Non-nearest interactions of methyl-, methoxy-, hydroxyl-, amino-, and nitro-substituents. And the article contained the following:

The standard molar enthalpies of formation, ΔfHom(liq/cr) of di-Ph ether substituted with nitro substituents were measured by the high-precision combustion calorimetry. Enthalpies of vaporisation/sublimation Δgl,crHom(298.15 K) of these compounds were obtained by the transpiration method. Enthalpies of fusion were measured by DSC. Gas-phase enthalpies of formation ΔfHom(g, 298.15 K) of substituted di-Ph ethers calculated by the G4 method were in an excellent agreement with the exptl. results. A set of thermodn. properties of di-Ph ether derivatives of benchmark quality was recommended for thermochem. calculations and for quantification of non-nearest interactions of methyl-, methoxy-, hydroxyl-, amino- and nitro-substituents on the di-Ph ether aromatic system. The experimental process involved the reaction of 2-Methylanisole(cas: 578-58-5).Recommanded Product: 578-58-5

The Article related to diphenyl methyl methoxy hydroxyl nitro ether structure property, Phase Equilibriums, Chemical Equilibriums, and Solutions: Other Chemical Equilibriums (Without Mechanistic Or Kinetic Interest) and other aspects.Recommanded Product: 578-58-5

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