Category: ethers-buliding-blocks

O’Shea, Riley; Wong, Wallace W. H. published an article in 2020, the title of the article was Simple improvements to Gilch synthesis and molecular weight modulation of MEH-PPV.Safety of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene And the article contains the following content:

The solvent and temperature used in the Gilch synthesis of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) were varied to achieve an improved set of reaction conditions. A range of mol. weights from 20 to 500 kg mol-1 were obtained in moderate to near-quant. yields. The best conditions for producing low mol. weight MEH-PPV (32 kg mol-1, 97% yield) was to use n-pentane as the reaction solvent at 25°C. For high mol. weight (397 kg mol-1, 65% yield), toluene at 55°C gave the best result. The photophys. properties for all MEH-PPV samples were examined and no significant variation was found between samples obtained under different polymerization conditions. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Safety of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

The Article related to polyphenylenevinylene gilch synthesis mol weight modulation, Chemistry of Synthetic High Polymers: Ring-Opening and Other Polymerizations and other aspects.Safety of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

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

On January 21, 2015, Shih, Kuo Sheng; Chen, Chien Chung; Chen, Po-Tsun; Yang, Ya-Wei; White, Jonathon D.; Chang, Yu-Ming; Yang, Arnold Chang-Mou published an article.Related Products of 146370-51-6 The title of the article was Photoluminescence of MEH-PPV Brushes, Pancakes, and Free Molecules in Solutions and Dry States. And the article contained the following:

Photoluminescence (PL) of a conjugated polymer MEH-PPV, poly[2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene], grafted on a silicon wafer with controlled tether spacing was studied to reveal the effects of mol. conformation, chain packing, and mech. stress. In the solvent-swollen state, the PL of the densely grafted polymer (denoted “brushes”) was blue-shifted substantially relative to the lightly grafted (denoted “pancakes”) and free polymers. As solvent evaporated, while for the brushes the changes in PL were insignificant, the PL spectra of the pancakes underwent large blue shifts and exhibited significant efficiency enhancements up to ∼175-fold. The solvent evaporation effects were attributed to mol. deformations resulting from coil contraction on the substrate, which gave rise to conjugation-disruptive kinks (blue shift) and segmental stretching (PL enhancement) in the dried mols. Moreover, heterojunctional quenching was found significantly suppressed by the mech. stresses. Similar behavior was observed in dried free single mols. These results unveil the fundamental role of mech. stresses, not only indirectly through their influence on mol. conformations, but directly via alterations of the excitonic behavior. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Related Products of 146370-51-6

The Article related to photoluminescence meh ppv brush, Chemistry of Synthetic High Polymers: Ring-Opening and Other Polymerizations and other aspects.Related Products of 146370-51-6

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

On December 1, 2013, Itoh, Takahito; Fujita, Katsuhito; Inoue, Kentaro; Iwama, Hiroki; Kondoh, Kensaku; Uno, Takahiro; Kubo, Masataka published an article.HPLC of Formula: 929-37-3 The title of the article was Solid polymer electrolytes based on alternating copolymers of vinyl ethers with methoxy oligo(ethyleneoxy)ethyl groups and vinylene carbonate. And the article contained the following:

Alternating copolymers (poly(1a-g-alt-VC)) of vinyl ethers with various methoxy oligo(ethyleneoxy)ethyl groups and vinylene carbonate (VC) were prepared, and the thermal and electrochem. properties of their polymer electrolytes with LiTFSI and interfacial stability between the polymer electrolyte and Li metal electrode were investigated. Tg’s increased linearly with salt contents, and decreased with an increase in the chain length of methoxy oligo(ethyleneoxy)ethyl groups in the vinyl ethers at constant salt concentration The slopes of Tg vs. [Li]/[O] were identical, independent of the polymer structure. The ionic conductivities of the polymer electrolytes increased with increasing the side-chain ethyleneoxy (EO) unit length of the vinyl ether unit in the alternating copolymers, and also their temperature dependences became relatively smaller in the polymer electrolytes having longer EO units in the vinyl ethers. The highest ionic conductivity, 1.2 × 10-4 S/cm at 30°C, was obtained in the alternating copolymer with a side-chain EO unit length of 23.5 in the vinyl ether unit. Ion transport coupled with the segmental motion of the polymer is dominant in these polymer electrolytes. Interfacial resistance increased gradually with contact time, indicative of the formation of passivation films on the Li metal electrode. These polymer electrolytes are thermally stable and have large electrochem. windows of use. 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 solid polymer electrolyte alternating copolymer ionic conductivity electrochem property, lithium battery solid state, Electrochemistry: Electrodes, Electrode Reactions, and Electrode Potentials and other aspects.HPLC of Formula: 929-37-3

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

On November 1, 2012, Tsuhako, Amy Lew; Marlowe, Charles K.; Zaharia, Christiana A.; Kabigting, Lori; Bajjalieh, William; Tesfai, Zerom; Huang, Ping; Moon, Kim; Aay, Naing; Tambo-Ong, Arlyn; Nuss, John M.; Xu, Wei; Kearney, Patrick published a patent.Safety of (2-Bromo-5-methoxyphenyl)methanamine The title of the patent was Pyrimidine derivatives as inhibitors of inducible form of 6-phosphofructose-2-kinase and their preparation and use for the treatment of cancer. And the patent contained the following:

The invention relates to pyrimidines of formula I, which are inhibitors of inducible form of 6-phosphofructose-2-kinase (iPFK-2) and which are useful in the treatment of cancer. Compounds of formula I wherein W is (un)substituted (un)branched C1-12 aliphatic chain; X1, X2 and X3 are independently absent, (un)substituted aryl, (un)substituted heteroaryl, etc.; Y is absent and (un)substituted (un)branched C1-12 aliphatic chain; Z is H, (un)substituted C1-8 aliphatic, (un)substituted aryl, etc.; L is absent, NH and derivatives and (un)substituted (un)branched C1-4 aliphatic chain; A is (un)substituted aryl, (un)substituted heteroaryl, etc.; and pharmaceutically acceptable salts thereof, are claimed. Example compound II was prepared by a general procedure (procedure given). All the invention compounds were evaluated for their iPFK-2 inhibitory activity. From the assay, it was determined that compound II exhibited an IC50 value of <500 nM. The experimental process involved the reaction of (2-Bromo-5-methoxyphenyl)methanamine(cas: 887581-09-1).Safety of (2-Bromo-5-methoxyphenyl)methanamine

The Article related to pyrimidine preparation phosphofructose kinase inhibitor treatment cancer, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.Safety of (2-Bromo-5-methoxyphenyl)methanamine

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

On August 6, 2021, Dao, Pham Duy Quang; Cho, Chan Sik published an article.SDS of cas: 93-04-9 The title of the article was Synthesis of Trinuclear Benzimidazole-Fused Hybrid Scaffolds by Transition Metal-Free Tandem C(sp2)-N Bond Formation under Microwave Irradiation. And the article contained the following:

The compounds 2-(2-bromoaryl)benzimidazoles e.g., 2-(2-bromocyclohex-1-en-1-yl)-1H-1,3-benzodiazole and 2-(2-bromovinyl)benzimidazoles e.g., 2-[(1Z)-1-bromo-1-phenylprop-1-en-2-yl]-1H-1,3-benzodiazole have been coupled and cyclized with 2-methoxybenzimidazoles e.g., 2-methoxy-1H-1,3-benzodiazole and 2-aryloxybenzimidazoles e.g., 2-methoxy-1H-naphtho[2,3-d]imidazole as building blocks in the presence of a base under microwave irradiation to give a class of trinuclear N-fused hybrid scaffolds, benzo[4,5]imidazo[1,2-a]benzo[4,5]imidazo[1,2-c]quinazolines e.g., I and benzo[4,5]imidazo[1,2-a]benzo[4,5]imidazo[1,2-c]pyrimidines e.g., II, resp., in good yields. The compounds 2-(2-bromoaryl)imidazoles e.g., 2-(2-bromocyclohex-1-en-1-yl)-4,5-diphenyl-1H-imidazole and 2-(2-bromovinyl)imidazoles e.g., (Z)-2-(1-bromo-1-phenylprop-1-en-2-yl)-4,5-diphenyl-1H-imidazole also reacted with 2-methoxybenzimidazoles (e.g., 2-methoxy-1H-1,3-benzodiazole/e.g., 2-methoxy-1H-naphtho[2,3-d]imidazole) in the presence of base under microwave irradiation to give a class of trinuclear N-fused hybrid scaffolds, benzo[4,5]imidazo[1,2-a]imidazo[1,2-c]quinazolines e.g., III and benzo[4,5]imidazo[1,2-a]imidazo[1,2-c]pyrimidines e.g., IV, resp., in similar yields. This process seems to proceed via an initial C(sp2)-N coupling by an addition-elimination nucleophilic aromatic substitution (SNAr) and subsequent cyclization accompanied by extrusion of alcs. The experimental process involved the reaction of 2-Methoxynaphthalene(cas: 93-04-9).SDS of cas: 93-04-9

The Article related to trinuclear fused heterocyclic compound preparation microwave green chem, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.SDS of cas: 93-04-9

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

On November 11, 2009, Liu, Weidong; Nichols, Paul J.; Smith, Nathan published an article.Quality Control of 2-(2-(Vinyloxy)ethoxy)ethanol The title of the article was Di(ethylene glycol) vinyl ether: a highly efficient deactivating reagent for olefin metathesis catalysts. And the article contained the following:

A highly efficient method for deactivating commonly used olefin metathesis catalysts is described. Inexpensive and com. available di(ethylene glycol) vinyl ether is found to quench both first- and second-generation Grubbs’ carbenes in less than 10 min at room temperature The resulting ruthenium byproducts are readily removed by silica gel purification The experimental process involved the reaction of 2-(2-(Vinyloxy)ethoxy)ethanol(cas: 929-37-3).Quality Control of 2-(2-(Vinyloxy)ethoxy)ethanol

The Article related to diethylene glycol vinyl ether deactivation olefin metathesis catalyst, Aliphatic Compounds: Esters, Linear Anhydrides, Acyl Peroxides, and Acyl Halides and other aspects.Quality Control of 2-(2-(Vinyloxy)ethoxy)ethanol

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

On July 4, 2013, Chen, Wei; Loury, David J. published a patent.Computed Properties of 1417036-28-2 The title of the patent was Preparation of pyrazolo[3,4-d]pyrimidine and pyrrolo[2,3-d]pyrimidine derivatives as Btk kinase inhibitors. And the patent contained the following:

The invention related to pyrazolo[3,4-d]pyrimidine derivatives of formula I and their pharmaceutically acceptable salts as Bruton’s tyrosine kinase (Btk) inhibitors; pharmaceutical composition comprising them and their preparations and use thereof. Compounds of formula I wherein A is CH and N; Y is (un)substituted (hetero)arylene, cycloalkylene, heteroalkylene, etc; Z is CO, NHCO, NHSO1-2, etc.; R6, R7 and R8 are independently H and L-J-W; L and J are independently a bond, (un)substituted C1-6 alkylene, (un)substituted C3-6 cycloalkylene, etc.; W is H, NH2 and derivatives; R2 is H, CN, NO2, etc.; R4 is independently H, CN, NO2, etc.; and their pharmaceutically acceptable salt, are claimed. Example compound II was prepared by amination of (R)-tert-Bu 3-hydroxy-1-pyrrolidinecarboxylate with 3-iodo-1H-pyrazolo[3,4-d]pyrimidin-4-amine,the resulting substituted pyrazolopyrimidine underwent deprotection followed by N-acylation with 4-(dimethylamino)but-2-enoic acid to afford 2-(E)-1-[(R)-(4-amino-3-iodo-1H-pyrazolo[3,4-d]pyrimidin-1-yl)pyrrolidin-1-yl]-4-(dimethylamino)but-2-en-1-one, which underwent coupling reaction with 4-chlorophenylboronic acid to afford compound II. The invention compounds were evaluated for their Btk inhibitory activity. From the assay, it was determined that example compound II exhibited IC50 value of < 100 nM. The experimental process involved the reaction of 2-(3-Methoxy-4-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 1417036-28-2).Computed Properties of 1417036-28-2

The Article related to pyrazolopyrimidine preparation btk kinase inhibitor, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.Computed Properties of 1417036-28-2

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

On February 19, 2013, Chen, Wei; Loury, David J. published a patent.COA of Formula: C14H21BO3 The title of the patent was Preparation of pyrazolo[3,4-d]pyrimidine and pyrrolo[2,3-d]pyrimidine derivatives as Btk kinase inhibitors. And the patent contained the following:

The invention related to pyrazolo[3,4-d]pyrimidine derivatives of formula I, pharmaceutical composition comprising them, their preparations and use as Bruton’s tyrosine kinase (Btk) inhibitors thereof. Compounds of formula I wherein X is a bond; Y is (un)substituted (hetero)arylene; Z is CO, CS, S(O)1-2, NHCO and derivatives, and NHSO1-2 and derivatives; R1 and R2 are independently H, (un)substituted (hetero)aryl, heterocycloalkyl, C1-4 alkyl and C3-6 cycloalkyl; or R1R2 taken together form a heterocycloalkyl ring; each R3 is independently halo, C1-4 alkyl, CF3, CN, NO2, NH2, OH and OMe; m is 1 – 3; and their pharmaceutically acceptable salt, are claimed. Example compound II was prepared by amination of (R)-tert-Bu 3-hydroxy-1-pyrrolidinecarboxylate with 3-iodo-1H-pyrazolo[3,4-d]pyrimidin-4-amine,the resulting substituted pyrazolopyrimidine underwent deprotection followed by N-acylation with 4-(dimethylamino)but-2-enoic acid to afford 2-(E)-1-((R)-(4-amino-3-iodo-1H-pyrazolo[3,4-d]pyrimidin-1-yl)pyrrolidin-1-yl)-4-(dimethylamino)but-2-en-1-one, which underwent coupling reaction with 4-chlorophenylboronic acid to afford compound II. All the invention compounds were evaluated for their Btk inhibitory activity. From the assay, it was determined that example compound II exhibited IC50 value of < 100 nM. The experimental process involved the reaction of 2-(3-Methoxy-4-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 1417036-28-2).COA of Formula: C14H21BO3

The Article related to pyrazolopyrimidine preparation btk kinase inhibitor, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.COA of Formula: C14H21BO3

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

Yuan, Jiwen; Ma, Xu; Yi, Hong; Liu, Chao; Lei, Aiwen published an article in 2014, the title of the article was I2-catalyzed oxidative C(sp3)-H/S-H coupling: utilizing alkanes and mercaptans as the nucleophiles.Quality Control of Benzyl(4-bromophenyl)sulfane And the article contains the following content:

By using alkanes and mercaptans as the nucleophiles with di-tert-Bu peroxide (DTBP) as the oxidant, I2-catalyzed oxidative C(sp3)-H/S-H coupling was achieved. This protocol provides a novel process to construct C(sp3)-S bonds from com. available hydrocarbons and mercaptans. The experimental process involved the reaction of Benzyl(4-bromophenyl)sulfane(cas: 53136-21-3).Quality Control of Benzyl(4-bromophenyl)sulfane

The Article related to alkane mercaptan oxidative coupling, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Alcohols and Thiols and other aspects.Quality Control of Benzyl(4-bromophenyl)sulfane

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

On October 29, 1999, Xiao, Yang; Yu, Wang-Lin; Pei, Jian; Chen, Zhikuan; Huang, Wei; Heeger, Alan J. published an article.Recommanded Product: 1-((2-Ethylhexyl)oxy)-4-methoxybenzene The title of the article was Conjugated copolymers of 2-methoxy-5-2′-ethyl-hexyloxy-1,4-phenylenevinylene and 2,5-dicyano-1,4-phenylenevinylene as materials for polymer light-emitting diodes. And the article contained the following:

A series of electroluminescent polymers was prepared, which incorporates segments of 2,5-dicyano-1,4-phenylenevinylene (DCN-PV) into the backbone of poly(2-methoxy-5-(2′-ethyl-hexyloxy)-p-phenylene vinylene) (MEH-PPV). The copolymers have optical properties similar to those of MEH-PPV. The oxidation potential of the copolymers is slightly larger than that of MEH-PPV. The copolymers exhibit pre-reduction processes, beginning at about -0.9 V (vs. SCE), before the main reduction processes. The pre-reduction feature promotes electron injection, consequently, it improves electroluminescence (EL) performance. The improved EL performance of the copolymers in comparison with MEH-PPV was demonstrated by a single-layer copolymer as emitter layer in a light-emitting diode (PLED) test device. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Recommanded Product: 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

The Article related to dicyanophenylenevinylene copolymer preparation electroluminescence prereduction process, polyphenylenevinylene cyanophenylene substituent preparation conjugated polymer, Physical Properties of Synthetic High Polymers: Physical Properties Of Polymers and other aspects.Recommanded Product: 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

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