Category: ethers-buliding-blocks

On April 1, 2016, Li, Jianxiao; Li, Chunsheng; Yang, Shaorong; An, Yanni; Wu, Wanqing; Jiang, Huanfeng published an article.Synthetic Route of 157869-15-3 The title of the article was Assembly of 3-Sulfenylbenzofurans and 3-Sulfenylindoles by Palladium-Catalyzed Cascade Annulation/Arylthiolation Reaction. And the article contained the following:

A novel and efficient palladium-catalyzed cascade annulation/arylthiolation reaction has been developed to afford functionalized 3-sulfenylbenzofuran and 3-sulfenylindole derivatives in moderate to good yields from readily available 2-alkynylphenols and 2-alkynylanilines in ionic liquids This protocol provides a valuable synthetic tool for the assembly of a wide range of 3-sulfenylbenzofuran and 3-sulfenylindole derivatives with high atom- and step-economy and exceptional functional group tolerance. Moreover, the employment of ionic liquids under mild reaction conditions makes this transformation green and practical. Furthermore, this approach enriched current C-S bond formation chem., making a valuable and practical method in synthetic and medicinal chem. The experimental process involved the reaction of 2-((4-Methoxyphenyl)ethynyl)aniline(cas: 157869-15-3).Synthetic Route of 157869-15-3

The Article related to sulfenylbenzofuran preparation, sulfenylindole preparation, benzofuran indole sulfenyl preparation, palladium catalyst cascade annulation arylthiolation alkynylphenol alkynylaniline and other aspects.Synthetic Route of 157869-15-3

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

On October 15, 2020, Tan, Chaoqun; Wu, Haotian; He, Huan; Lu, Xu; Gao, Haiying; Deng, Jing; Chu, Wenhai published an article.SDS of cas: 150-78-7 The title of the article was Anti-inflammatory drugs degradation during LED-UV365 photolysis of free chlorine: roles of reactive oxidative species and formation of disinfection by-products. And the article contained the following:

Light-emitting diode (LED) is environmentally friendly with longer life compared with traditionally mercury lamps. This study investigated the non-steroidal anti-inflammatory drugs (NSAIDs)- phenacetin (PNT) and acetaminophen (ACT)- removal during LED-UV (365 nm) photolysis of free available chlorine (FAC). Degradation of PNT and ACT during LED-UV365/FAC treatment at pH 5.5-8.5 followed the pseudo-first order kinetics. The presence of hydroxyl radicals (路OH), reactive chlorine species (RCS), and ozone (O3, transformed from O (3P)) were screened by using scavengers of ethanol (EtOH), tert-Butanol (TBA), and 3-buten-2ol, and 4-hydroxy-2,2,6,6-tetramethylpiperidine (TEMP), and quantified by competition kinetics with probing compounds of nitrobenzene (NB), benzoate acid (BA), 1,4-dimethoxybenzene (DMOB). Higher pH would lead to decrease of 路OH contribution and an increase of FAC contribution to PNT and ACT degradation It has been determined that the contribution of O3 to degradation of PNT and ACT was less than 5% for all pHs, and O3(P) reacts toward EtOH with second-order constant of 1.52 x 109 M-1s-1. LED-UV365/FAC system reduced the formation of five typical CX3-R type disinfection byproducts (DBPs) as well as the cytotoxicity and genotoxicity of water samples at pH 5.5 and 8.5, compared with FAC alone. The decrease of DBPs formation resulted from fast FAC decomposition upon LED-UV365 irradiation A feasible reaction pathway of DBPs formation in the LED-UV365/FAC system was examined with d. functional theory (DFT). For FAC decay during LED-UV365/FAC with effluent from wastewater, the residual FAC in 15 min was 0.8 mg/L (lower than limit of 0.2 mg/L) once initial FAC was 2.0 mg/L. The results indicate that more tests on the balance of target pollutant removal efficiency, residual FAC and cost should be explored in LED-UV365/FAC system for application. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).SDS of cas: 150-78-7

The Article related to antiinflammatory drug chlorine disinfection byproduct photolysis degradation reactive species, acetaminophen, disinfection by-products, free active chlorine, led-uv(365), phenacetin and other aspects.SDS of cas: 150-78-7

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

On June 6, 1996, Achard, Daniel; Peyronel, Jean-Francois; Tabart, Michel published a patent.Formula: C10H12O3 The title of the patent was Perhydroisoindole derivatives as antagonists of substance p. And the patent contained the following:

New perhydroinsoindoles having the general formula I wherein R1 is optionally substituted Ph or is cyclohexadienyl, naphthyl, indenyl or mono or polycyclic heterocyclyl, saturated or unsaturated 5 to 9C and optionally substituted, R2 is H or halogen, OH, alkyl, amino, aminoalkyl, alkylaminoalkyl, dialkylaminoalkyl, alkyloxy, alkylthio, acyloxy, carboxy, alkyloxycarbonyl, dialkylaminoalcyloxycarbonyl, benzyloxycarbonyl, amino or acylamino, R3 is Ph optionally substituted in position -2 by a radical alkyl or alkyloxy 1 or 2C or by OH or F, or disubstituted by CF3, and R4 is an alkyl radical containing 1 or 2C substituted by halogen or CN, N3 or -NHCN, and the radicals R which are similar or different represent H, alkyl or Ph, in their isomer forms having the structure II or mixtures thereof, optionally their salts when they exist and preparation thereof. The new derivatives of the invention are particularly useful as antagonists of substance P. The derivative II (R = H, R1 = Me, R2 = R3 = 2-MeOC6H4, R4 = CH2OH) was prepared via acylation of (卤)-III with (S)-(2-MeOC6H4)CHMeCO2H in CH2Cl2 containing hydroxybenzotriazole hydrate and EtN:C:N(CH2)3NMe2. The antiinflammatory activity of several II were tested with a DE50 mg/kg p.o. range of 0.004-1. The experimental process involved the reaction of (S)-2-(2-Methoxyphenyl)propanoic acid(cas: 81616-80-0).Formula: C10H12O3

The Article related to substance p antagonist preparation, perhydroisoindole derivative preparation bioactivity, isoindole perhydro derivative preparation bioactivity, nk2 receptor antagonist preparation and other aspects.Formula: C10H12O3

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

Lu, Fangling; Chen, Ziyue; Li, Zhen; Wang, Xiaoyan; Peng, Xinyue; Li, Cong; Li, Ru; Pei, Hongqiao; Wang, Huamin; Gao, Meng published an article in 2018, the title of the article was Copper-catalyzed alkylation of thiophenols with benzyltrimethylammonium triflates.Product Details of 53136-21-3 And the article contains the following content:

A copper-catalyzed cross coupling of thiophenols with benzyltrimethylammonium triflates was developed. Various kinds of aryl and heteroaryl thiophenols and alkylthiols demonstrated to be efficient substrates, generating the desired alkyl thioethers RSCH2R1 [R = 4-MeC6H4, CH2C6H5, 2-naphthyl, etc.; R1 = Ph, 2-MeC6H4, 4-BrC6H4, etc.] in moderate to good yields. Meanwhile, different benzyltrimethylammonium triflates could be well tolerated. Selected thioether products were further transformed into sulfoxide R2S(O)R3 [R2 = 4-MeC6H4, 4-ClC6H4, 4-BrC6H4, etc.; R3 = Ph, 4-MeC6H4, 2-IC6H4, etc.] with good efficiency. The experimental process involved the reaction of Benzyl(4-bromophenyl)sulfane(cas: 53136-21-3).Product Details of 53136-21-3

The Article related to aryl benzyl sulfoxide preparation, alkyl thioether reactant aryl benzyl sulfoxide preparation, thiophenol benzyltrimethylammonium triflate copper catalyst cross coupling alkylation and other aspects.Product Details of 53136-21-3

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

On January 7, 2016, Miyanaga, Wataru; Kawahira, Mizuki; Matsumoto, Kayo; Nakagawa, Tadakiyo; Tokumasu, Munetaka; Takeshita, Sen published a patent.SDS of cas: 1162054-86-5 The title of the patent was Preparation of heterocyclic amidocarboxylic acid compounds as glycogen synthase activators and pharmaceutical compositions containing them. And the patent contained the following:

The purpose of the present invention is to provide a novel compound that is capable of activating glycogen synthase but hardly activates receptor PPAR and shows high safety. Provided is a compound represented by general formula I (all variables are defined in the specification) or a pharmaceutically acceptable salt thereof. Thus, 2-[[5-[[4-(4,5-difluoro-2-methylsulfanylphenyl)phenoxy]methyl]furan-2-carbonyl]-(2-methoxyethyl)amino]acetic acid (preparation given) activated human glycogen synthase with EC50 <0.003 渭M. The experimental process involved the reaction of (S)-1-Methoxypropan-2-amine hydrochloride(cas: 1162054-86-5).SDS of cas: 1162054-86-5

The Article related to heterocyclic amidocarboxylic acid compound glycogen synthase activator treatment diabetes, phenylphenoxymethylfuranecaraboxamidoacetic acid preparation glycogen synthase activator and other aspects.SDS of cas: 1162054-86-5

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

On May 8, 2008, Kubo, Masataka; Ito, Takahito; Shoyama, Masashi published a patent.Application of 146370-51-6 The title of the patent was Organic-inorganic hybrid phosphors, their preparation, and their use for white light-emitting materials and capsule-type endoscopes. And the patent contained the following:

The organic-inorganic hybrid phosphors, useful for white light-emitting materials and capsule-type endoscopes, contain 蟺-conjugated poly(arylenevinylenes) in granular silica and are prepared by sol-gel processing of 蟺-conjugated poly(arylenevinylenes) having phosphonium end groups and alkoxysilanes. Thus, reaction of 4-methoxyphenol and 1-bromo-2-ethylhexane gave 4-(2-ethylhexyloxy)anisole, which was converted into a dialdehyde derivative (A) and diphosphonium chloride derivative (B) via a bis(chloromethyl) derivative A and B were copolymerized in CHCl3 in the presence of NaOEt to give a 蟺-conjugated poly(arylenevinylene), which was stirred with Si(OEt)4 in aqueous EtOH solution containing 2-amino-2-hydroxymethyl-1,3-propanediol dodecylsulfate salt and NH4OH to give an organic-inorganic hybrid phosphor. A UV-emitting diode chip was potted with a mixture of the phosphor, other phosphors prepared in similar manners, and silicone resins (KER-2667A and KER-2667B) to give a white light-emitting diode showing a UV peak at 373 nm and a broad spectrum with wavelength range 400-700 nm. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Application of 146370-51-6

The Article related to polyarylenevinylene silica organic inorganic hybrid phosphor, white light emitting diode polyarylenevinylene silica, capsule endoscope polyarylenevinylene alkoxysilane soluble gel and other aspects.Application of 146370-51-6

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

Qiu, Youai; Scheremetjew, Alexej; Finger, Lars H.; Ackermann, Lutz published an article in 2020, the title of the article was Electrophotocatalytic Undirected C-H Trifluoromethylations of (Het)Arenes.HPLC of Formula: 150-78-7 And the article contains the following content:

Electrophotochem. had enabled arene C-H trifluoromethylation with the Langlois reagent CF3SO2Na under mild reaction conditions. The merger of electrosynthesis and photoredox catalysis provided a chem. oxidant-free approach for the generation of the CF3 radical. The electrophotochem. was carried out in an operationally simple manner, setting the stage for challenging C-H trifluoromethylations of unactivated arenes and heteroarenes. The robust nature of the electrophotochem. manifold was reflected by a wide scope, including electron-rich and electron-deficient benzenes, as well as naturally occurring heteroarenes. Electrophotochem. C-H trifluoromethylation was further achieved in flow with a modular electro-flow-cell equipped with an in-operando monitoring unit for online flow-NMR spectroscopy, providing support for the single electron transfer processes. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).HPLC of Formula: 150-78-7

The Article related to trifluoromethylarene preparation regioselective, arene trifluoromethylation electrophotocatalytic, c鈭抙 trifluoromethylation, arenes, catalysis, electrophotochemistry, oxidant-free and other aspects.HPLC of Formula: 150-78-7

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

On January 7, 2021, Richards, Kenza; Petit, Eddy; Legrand, Yves-Marie; Grison, Claude published an article.Application of 578-58-5 The title of the article was Eco-Friendly Methodology for the Formation of Aromatic Carbon-Heteroatom Bonds by Using Green Ionic Liquids. And the article contained the following:

A new sustainable method is reported for the formation of aromatic carbon-heteroatom bonds under solvent-free and mild conditions (no co-oxidant, no strong acid and no toxic reagents) by using a new type of green ionic liquid The bromination of methoxy arenes was chosen as a model reaction. The reaction methodol. is based on only using natural sodium bromine, which is transformed into an electrophilic brominating reagent within an ionic liquid, easily prepared from the melted salt FeCl3 hexahydrate. Bromination reactions with this in-situ-generated reagent gave good yields and excellent regioselectivity under simple and environmentally friendly conditions. To understand the unusual bromine polarity reversal of sodium bromine without any strong oxidant, the mol. structure of the reaction medium was characterized by Raman and direct infusion electrospray ionization mass spectroscopy (ESI-MS). An extensive computational investigation using d. functional theory methods was performed to describe a mechanism that suggests indirect oxidation of Br- through new iron adducts. The versatility of the methodol. was successively applied to nitration and thiocyanation of methoxy arenes using KNO3 and KSCN in melted hexahydrated FeCl3. The experimental process involved the reaction of 2-Methylanisole(cas: 578-58-5).Application of 578-58-5

The Article related to haloarene green preparation melted ferric chloride ionic liquid, dft-hf calculation, aromatic electrophilic substitution, ionic liquids, mixed melted salts, sustainable chemistry and other aspects.Application of 578-58-5

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

On January 18, 2000, Dellsperger, Simon; Dotz, Florian; Smith, Paul; Weder, Christoph published an article.Synthetic Route of 146370-51-6 The title of the article was Synthesis and optical properties of novel poly(p-phenyleneethynylene)s. And the article contained the following:

In order to explore the influence of chem. modifications on the photophys. properties of poly(p-phenyleneethynylene)s (PPEs), a series of PPE-copolymers was synthesized, employing Heck-type cross-coupling reactions. UV/Vis absorption and photoluminescence experiments clearly demonstrate that the design of PPE-copolymers which comprise conjugated segments of well-defined length and (aliphatic) spacers in a strictly alternating fashion allows to tune the bandgap to higher energies, and thus the absorption and emission maxima to shorter wavelengths. The derivatization of the PPE backbone with electron-withdrawing substituents, by contrast, is found to be significantly less effective and only leads to comparably small shifts in the absorption and emission spectra. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Synthetic Route of 146370-51-6

The Article related to polyphenyleneethynylene preparation optical property, photoluminescence polyphenyleneethynylene electron withdrawing substituent, absorption polyphenyleneethynylene electron withdrawing substituent and other aspects.Synthetic Route of 146370-51-6

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