Tag: 200-300

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.Application In Synthesis of 2-(3-Methoxy-4-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 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-(3-Methoxy-4-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane(cas: 1417036-28-2).Application In Synthesis of 2-(3-Methoxy-4-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

The Article related to pyrimidine preparation phosphofructose kinase inhibitor treatment cancer, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.Application In Synthesis of 2-(3-Methoxy-4-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

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

On May 15, 2009, Roviello, Antonio; Borbone, Fabio; Carella, Antonio; Diana, Rosita; Roviello, Giuseppina; Panunzi, Barbara; Ambrosio, Antonio; Maddalena, Pasqualino published an article.Application In Synthesis of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene The title of the article was High quantum yield photoluminescence of new polyamides containing oligo-PPV amino derivatives and related oligomers. And the article contained the following:

The synthesis and the chem. phys. characterization of new photoluminescent (PL) chromophores and polymers are reported. Chromophores (oligo-PPV sym. derivatives ending with amino groups) are strong blue emitters with a PL quantum yield of ∼70% in dioxane solution They have been used to prepare polyamides by reaction with aliphatic acyl dichlorides in which emitting and non emitting units are alternated. PL properties of the synthesized polyamides have been evaluated in solution and reveal a strong blue emission (PL quantum yield ∼60%), to increase the solubility of these systems, oligomers have been purposely prepared and then characterized. They show a peculiar white emission when excited in DMF solution; to get insight into this interesting behavior, asym. monoacetylated chromophores have been prepared as model compounds for the chromophoric end groups of the polyamide chains. The emission spectra of these compounds reveal a broad excimeric yellow emission which is responsible, along with the blue emission of the inner chromophoric units, of the overall white emission of the oligomers. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 2677-2689, 2009. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Application In Synthesis of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

The Article related to phenylenevinylene fragment polyamide dodecanoyl suberoyl synthesis photoluminescence fluorescence, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Application In Synthesis of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

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

On April 1, 2008, Karastatiris, Panayiotis; Mikroyannidis, John A.; Spiliopoulos, Ioakim K. published an article.SDS of cas: 146370-51-6 The title of the article was Bipolar poly(p-phenylene vinylene)s bearing electron-donating triphenylamine or carbazole and electron-accepting quinoxaline moieties. And the article contained the following:

Two new poly(phenylenevinylene)s (PPVs) carrying electron-donating triphenylamine or carbazole and electron-deficient quinoxaline units were synthesized and characterized. Their properties were compared with those of PPV containing only quinoxaline unit. The two polymers showed PL maximum at 501-510 in solution and 533-540 in thin film. Because of the presence of electron donor and acceptor units they displayed strong intramol. charge transfer (ICT) effects; hence, low-photoluminescence (PL) quantum yields. The polymers showed reversible electrochem. reduction with electron affinity of 2.75 eV and irreversible oxidation with ionization potential of 5.10-5.24 eV. Single-layer LED of configuration ITO/PEDOT/polymer/Al showed low turn-on voltage at 5 V, but limited brightness of 50-60 cdm-2. The electroluminescence maximum was voltage-tunable varying from 500 to 542 nm. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).SDS of cas: 146370-51-6

The Article related to triphenylamine carbazole quinoxaline polyphenylenevinylene photoluminescence electroluminescence, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.SDS of cas: 146370-51-6

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

On March 9, 2006, Amrutha, S. R.; Jayakannan, M. published an article.Reference of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene The title of the article was Control of π-Stacking for Highly Emissive Poly(p-phenylenevinylene)s: Synthesis and Photoluminescence of New Tricyclodecane Substituted Bulky Poly(p-phenylenevinylene)s and Its Copolymers. And the article contained the following:

In the present work, we have demonstrated a facile approach to increase the luminescence of the poly (p-phenylenevinylene)s via controlling the mol. aggregates induced by π-stacking. We have synthesized new bulky tricyclodecane (TCD) substituted PPVs: poly(2-methoxy-5-tricyclodecanemethyleneoxy-1,4-phenylenevinylene) (MTCD-PPV), poly(bis-2,5-tricyclodecanemethyleneoxy-1,4-phenylenevinylene) (BTCD-PPV), and a series of sym. substituted bulky PPV copolymers (P-1-P-7) covering the entire composition range from 0 to 100 mol %. The structures of the monomers and polymers were confirmed by 1H NMR and FTIR, and the mol. weights were determined by gel permeation chromatog. The composition anal. by NMR revealed that the bulky monomer was highly reactive and the incorporation of bulky units in MEH-PPV increased irresp. of the feed ratio. The polymers possess good solubility, high mol. weights, good thermal stability, and so forth. The mol. weights of the PPV copolymers were also significantly affected by the bulky substitution: the higher the incorporation of bulky units, the lower the mol. weight The absorption and emission studies revealed that there was no influence on the MEH-PPV by TCD substitution in solution whereas in the solid state the photoluminescence intensity of PPV increased more than 10 times. The luminescence increase in PPV was observed throughout the entire bulk and was not confined to any particular domain in the polymer. The bulky PPV copolymers showed that both the luminescence intensity (in film) and quantum yields (in solution) increased with an increase in the extent of BTCD incorporation in the MEH-PPV and attained a maximum for 50% BTCD. The TCD unit has thus proved to be an efficient bulky susbstituent for PPV as it controls the π-stack-induced mol. aggregates in the polymer chains by increasing the interchain distances. The new bulky PPV copolymers are highly soluble, thermally stable, and highly luminescent besides being economically cheap compared to the other materials reported so far for the bulkier approach in π-conjugated materials. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Reference of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

The Article related to tricyclodecane substituent polyphenylenevinylene synthesis luminescence aggregation pi stacking, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Reference of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

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

On November 7, 2001, Ahn, Taek; Shim, Hong-Ku published an article.Quality Control of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene The title of the article was Synthesis and luminescent properties of blue light emitting polymers containing both hole and electron transporting units. And the article contained the following:

Poly[(oxy-4,4′-octa-fluoro biphenyl-oxy)-1,4-phenylenevinylene-2-methoxy-5-(2-ethylhexyl-oxy)-1,4-phenylenevinylene-1,4-phenylene], POFB-MEH-PPV, poly[(oxy-4,4′-octa-fluoro biphenyl-oxy)-1,4-phenylenevinylene-9,9-dihexyl-2,7-fluorene diyl-vinylene-1,4-phenylene], POFB-PF, and poly[(oxy-4,4′-octa-fluoro biphenyl-oxy)-1,4-phenylenevinylene-N-ethylhexyl-3,6-carbazole vinylene-1,4-phenylene], POFB-PK, were synthesized by the well-known Wittig condensation polymerization We incorporated the high electron affinity (octa-fluoro biphenyl) and hole-transporting (carbazole, fluorene, and dialkoxy phenyl) units into the conjugated main chain. The conjugation lengths are limited to the blue-emission region by ether linkage. The resulting polymers were completely soluble in common organic solvents such as chloroform, 1,2-dichloroethane, and cyclohexanone, and exhibited good thermal stability up to 300°C. The synthesized polymers showed UV-visible absorbance and photoluminescence (PL) in the ranges of 350-385 nm and 460-490 nm, resp. The fluorene or carbazole containing POFB-PF and POFB-PK showed blue photoluminescence peaks at 470 and 460 nm, resp. The single-layer light-emitting diode was fabricated in a configuration of ITO (indium-tin oxide)/polymer/Al. Electroluminescence (EL) emission of POFB-PF and POFB-PK were shown at 475 and 458 nm, resp., corresponding to the pure blue emissions. And, a dialkoxy-Ph containing POFB-MEH-PPV showed greenish blue light at 494 nm. But, LED devices from synthesized polymers showed poor device performance and high turn on voltage. So, we fabricated light-emitting diodes (LEDs) from blend polymers composed of poly[2-methoxy-5-(2-ethylhexyl-oxy)-1,4-phenylenevinylene] (MEH-PPV) and POFB-MEH-PPV (POFB-PF or POFB-PK) as the emitting layers. The EL emission maxima of each blend polymers were in the range of 573-591 nm, which indicates that the emission is mainly due to MEH-PPV and POFB-MEH-PPV (POFB-PF or POFB-PK) contributes to the enhancement of the luminescence. And each blend polymers exhibited higher EL quantum efficiency compared with MEH-PPV at the same c.d. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Quality Control of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

The Article related to fluorene carbazole containing polyphenylene preparation polymerization electro luminescence led, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Quality Control of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

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

On September 6, 2003, Zhang, Su-Yang; Kong, Fan; Sun, Rong; Yuan, Ren-Kuan; Jiang, Xi-Qun; Yang, Chang-Zheng published an article.COA of Formula: C15H24O2 The title of the article was Synthesis, characterization, and electro-optical properties of a soluble conjugated polymer containing an oxadiazole unit in the main chain. And the article contained the following:

A novel copolymer, poly{[2,5-di-phenylene-1,3,4-oxadiazole-vinylene]-[2-methoxy-5-(2-ethylhexyl-oxy)-1,4-phenylenevinylene]}(MEH-OPPV) containing a high-electron-affinity unit of aromatic oxadiazole in the main chain is synthesized through the Wittig condensation reaction. The obtained copolymer is easily soluble in conventional organic solvents. The structure of the copolymer was characterized by Fourier transform IR, 1H NMR, thermogravimetric anal. (TGA), differential scanning calorimetry (DSC), and UV-visible and photoluminescence spectroscopy. The TGA result indicates that the copolymer has very high thermal stability (stable up to 310°C in nitrogen), while DSC investigation demonstrates that the glass transition temperature (Ts) is 143°C, which might be a merit for the long-life operation of light-emitting devices. The absorption spectrum of film sample of the copolymer reveals two peaks at 310 and 370 nm, resp., and the edge absorption corresponds to a band gap of 2.46 eV. A single-layer light-emitting diode device ITO/MEH-OPPV/Al is successfully fabricated. The device emits visible yellowish-green light above the bias voltage of 4.0 V under ambient condition. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).COA of Formula: C15H24O2

The Article related to oxadiazole conjugated polymer led preparation electroluminescence thermal degradation thermal, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.COA of Formula: C15H24O2

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

On November 19, 2003, Qiu, Yong; Wang, Liduo; Li, Yinkui published a patent.Quality Control of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene The title of the patent was Preparation of polyphenylenevinylene through etherification, halomethylation and polymerization. And the patent contained the following:

A polyphenylenevinylene is prepared by the following steps: etherifying hydroquinone or 4-methoxyphenol in water or alc.; halomethylating with paraformaldehyde in dioxane or acetic acid solvent; polymerizing in THF (or xylene, DMSO) in the presence of potassium tert-butoxide at 0-80° under ultrasonic wave vibrating for 0.5-10 h. Polyphenylenevinylene derivatives can be obtained under lower temperature, shorter time and with higher reaction yield, and can be dissolved in normal solvents without gels. Thus, poly[[methoxy(octyloxy)-1,4-phenylene]-1,2-ethenediyl] is prepared by the homopolymerization of 1,4-di(chloromethyl)-2-methoxy-5-octyloxybenzene in THF under reflux, at a yield of 81.2%, wherein the monomer is prepared by the dichloromethylation of 1-methoxy-4-octyloxybenzene by paraformaldehyde and concentrated HCl under sonication, with 4-methoxyphenol as the starting material. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Quality Control of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

The Article related to etherifying methoxyphenol halomethylating paraformaldehyde polymerizing polyphenylenevinylene, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Quality Control of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

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

On January 5, 2004, Sun, Xiaobo; Li, Min; Liu, Dong; Zhang, Peng; Tian, Wenjing published an article.Safety of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene The title of the article was Synthesis and characterization of poly(1,4-phenylenevinylene) derivatives containing liquid crystalline oxadiazole groups. And the article contained the following:

Two novel poly(1,4-phenylenevinylene) (PPV) derivatives containing liquid crystalline oxadiazole side chains were prepared by a dehydrochlorination process. The homopolymer poly[2-methoxy-5-((2-methoxy-phenyl)-5-hexyloxy-phenyloxy-1,3,4-oxadiazole)-1,4-phenylenevinylene] (HO-PE6) is insoluble in common solvents, whereas the copolymer poly[2-methoxy-5-((2-methoxy-phenyl)-5-hexyloxy-phenyloxy-1,3,4-oxadiazole)-(2-methoxy-5-(2′-ethylhexyloxy))-1,4-phenylenevinylene] (CO-PE6) is soluble in common solvents such as chloroform, THF, and p-xylene. The mol. structure of CO-PE6 was confirmed by FTIR, 1H-NMR, UV-vis spectroscopy, and polarized light microscopy. CO-PE6 showed a maximum emission at 556 nm in chloroform and at 564 nm in solid film, when excited at 450 nm. The maximum electroluminescence emission of the device indium-tin oxide (ITO)CO-PE6/Al is at 555 nm. The turn-on voltage of LEDs based on CO-PE6 and MEH-PPV is 6.5 and 8.5 V, resp. The electron mobility of CO-PE6 is higher than that of MEH-PPV based on the results of current-voltage and electrochem. behavior of both MEH-PPV and CO-PE6. 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 liquid crystalline oxadiazole side group preparation property led, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Safety of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

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

On May 15, 2009, Li, Shengbiao; Zhao, Ping; Huang, Yanqin; Li, Tingcheng; Tang, Chao; Zhu, Rui; Zhao, Lei; Fan, Quli; Huang, Shiqiang; Xu, Zushun; Huang, Wei published an article.SDS of cas: 146370-51-6 The title of the article was Poly-(p-phenylene vinylenes) with pendent 2,4-difluorophenyl and fluorenyl moieties: Synthesis, characterization, and device performance. And the article contained the following:

To improve efficiency, processability, and stability, three novel poly(p-phenylenevinylenes) (PPVs) derivatives (Pa, Pb, and Pc) with pendent 2,4-difluorophenyl and fluorenyl moieties were synthesized via Gilch reaction. Their structures were characterized by 1H NMR, 13C NMR, and ELEM. ANAL. Compared with those of PPV and MEH-PPV, the absolute quantum efficiencies of these polymers showed remarkable improvement (measured at 38.7, 37.2, and 20.3%, resp.), which can be attributed to the presence of twisted multiaryl segments and fluorine atoms. TGA revealed that the inflection temperatures of their thermal decomposition curves were above 400°. Double-layered electroluminescent devices with these polymers as light-emitting layers [ITO/PEDOT:PSS/Polymer/Ba/Al] showed peak emissions at 493/515, 503, and 600 nm and maximum luminance of 2700, 450, and 4700 cd/m2 for Pa, Pb, and Pc, resp., with onset voltages of ∼4 V. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 2500-2508, 2009. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).SDS of cas: 146370-51-6

The Article related to difluorophenyl fluorenyl polyphenylenevinylene conjugated polymer light emitting device, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.SDS of cas: 146370-51-6

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

On June 30, 2008, Wang, Hualin; Sun, Yueming; Qi, Zhengjian; Jiang, Wei; Song, Kunzhong; Li, Dayan published an article.Electric Literature of 146370-51-6 The title of the article was Synthesis and optical properties of an alternating copolymer composed of MEHPV and 1,3,4-oxadiazole. And the article contained the following:

A poly (p-phenylenevinylene) (PPV) alternating copolymer, poly [(2, 5-diphenylene-1, 3, 4-oxadiazole) 44′ – vinylene-alt-2-methoxy-5-(2-ethylhexyloxy)-1, 4-phenylenevinylene] (oxa-MEHPV), is synthesized by Heck coupling reaction and characterized with UV-vis, Fourier transform IR (FT-IR), 1H-NMR and photoluminescence (PL) spectroscopy. oxa-MEHPV possesses an outstanding thermal stability and shows excellent solubility in common organic solvents such as dichloromethane, chloroform, toluene, and tetrahydrofuran(THF). The introduction of the electron-deficient 1, 3, 4-oxadiazole units into the MEH-PPV backbone also increases the electron affinities of the conjugated segment, which leads to the blue-shift of the maximum absorption wavelength and makes the polymer have a high optical band-gap energy, good electron-transporting stability and high PL quantum yield. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Electric Literature of 146370-51-6

The Article related to polyoxadiazole polyarylenealkenylene copolymer synthesis optical property fluorescence, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Electric Literature of 146370-51-6

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