Category: nitriles-buliding-blocks

Tamoradi, Taiebeh published the artcileNeodymium immobilized on Fe3O4: A new and recoverable catalyst for oxidation reactions and synthesis of 5-substituted 1H-tetrazoles in green condition, HPLC of Formula: 91-15-6, the main research area is tetrazole neodymium iron oxide recoverable catalyst green condition.

Magnetic nanoparticle functionalized with neodymium complex as catalyst and characterized by SEM, XRD, FT-IR, TGA, EDX and ICP techniques. Then, catalytic activity of prepared catalyst was examined in the synthesis of tetrezoles and oxidation reactions in which observed short reaction time and high yield in these reactions.

Polyhedron published new progress about Crystallinity. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, HPLC of Formula: 91-15-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Molaei, Somayeh published the artcileImmobilization of cerium (IV) and erbium (III) in mesoporous MCM-41: Two novel and highly active heterogeneous catalysts for the synthesis of 5-substituted tetrazoles, and chemo- and homoselective oxidation of sulfides, HPLC of Formula: 91-15-6, the main research area is cerium immobilized serine functionalized mesoporous silica preparation surface structure; erbium immobilized serine functionalized mesoporous silica preparation surface structure; sulfide oxidation heterogeneous catalyst green chem; sulfoxide preparation; nitrile sodium azide heterogeneous catalyst green chem; tetrazole preparation.

Two well-ordered 2D-hexagonal cerium (IV) and erbium (III) embedded functionalized mesoporous MCM-41(MCM-41@Serine/Ce and MCM-41@Serine/Er) was developed via functionalization of mesoporous MCM-41. The surface modification method was used in the preparation of serine-grafted MCM-41 and led to the development of MCM-41@Serine. The reaction of MCM-41@Serine with Ce(NH4)2(NO3)6·2H2O or ErCl3·6H2O in ethanol under reflux led to the organization of MCM-41@Serine/Ce and MCM-41@Serine/Er catalysts. The structures of these catalysts were determined using SEM, mapping, energy-dispersive X-ray spectroscopy, Fourier transform-IR, thermogravimetric anal., X-ray diffraction, inductively coupled plasma and Brunauer-Emmett-Teller anal. These MCM-41@Serine/Ce and MCM-41@Serine/Er catalysts showed outstanding catalytic performance in sulfides oxidation and synthesis of 5-substituted tetrazoles. These catalysts can be recycled for seven repeated reaction runs without showing a considerable decrease in catalytic performance.

Applied Organometallic Chemistry published new progress about Crystallinity. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, HPLC of Formula: 91-15-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Liu, Xianyuan published the artcileThermally conductive and electrically insulating alumina-coated graphite/phthalonitrile composites with thermal stabilities, Quality Control of 91-15-6, the main research area is alumina coated graphite phthalonitrile composite elec insulating thermal stability.

Alumina-coated graphite (Al2O3@graphite) core-shell particles were firstly synthesized by a liquid-phase chem. precipitation with the aid of sodium dodecyl sulfonate (SDS) surfactant using an inorganic precursor, then to fabricate thermally conductive and elec. insulating phthalonitrile composites by a hot-compression method. The obtained composite with 40 wt% Al2O3@graphite exhibited a thermal conductivity of 1.409 W/mK, 6.6 times that of pristine phthalonitrile matrix (0.214 W/mK). And the composites still retained elec. insulation below 20 wt% Al2O3@graphite content. Moreover, excellent thermal stabilities had been observed, compared with the glass transition temperature of pristine phthalonitriles (460°C), the glass transition temperature of the composites decreased slightly but still high. Addnl., at 20 wt% content, the weight loss temperature (T5 and T10) and the char yield at 1000°C (Yc1000) were 525°C, 589°C and 74.9% which was 8°C, 14°C and 3.1% higher than that of pristine phthalonitriles, resp., which holds potential for use in the high temperature thermal management.

Composites Science and Technology published new progress about Decomposition. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Quality Control of 91-15-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Aymonino, Fabrice published the artcileDegradation of PAI/PEI enamel under high temperature (Up to 400♂C), Recommanded Product: Phthalonitrile, the main research area is polyesterimide polyamide imide enamel degradation temperature.

This work deals with the understanding of the degradation of the primary insulation (PEI/PAI) of rotating machines working temporarily under high-temperature The main domain of application of these motors is the smoke extraction either from tunnels or underground parking when a fire occurs. In such a critical situation, the internal temperature of the motor winding may reach temperatures up to 400 °C. Under such very high thermal stresses, the behavior of the elec. insulation is not well understood. This work proposes an anal. of the decomposition gases under very high temperatures and the corresponding degradation pathway. A simple method is proposed to identify whether the insulation of such motors has been strongly damaged during the working time at very high temperatures, thus allowing estimating if it can still continue to operate.

Materials Sciences and Applications published new progress about Decomposition. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Recommanded Product: Phthalonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

de Souza, Thalita F. M. published the artcileUnsymmetrical zinc(II) phthalocyanine and zinc(II) naphthalocyanine with 2,3-Dicyano-1,4-diphenylnaphthalene precursor, Category: nitriles-buliding-blocks, the main research area is unsym zinc phthalocyanine naphthalocyanine preparation photophys photochem; dicyanodiphenylnaphthalene precursor preparation; Diels Alder diphenylisobenzofuran fumaronitrile.

The synthesis, photophys. and photochem. properties of an unsym. zinc(II) phthalocyanine and zinc(II) naphthalocyanine derivative are described. The precursor 2,3-Dicyano-1,4-diphenylnaphthalene was synthesized by Diels-Alder reaction with 1,3-diphenylisobenzofuran and fumaronitrile. The macrocycles were characterized by MALDI-TOF, FTIR, 1H NMR and UV-vis. On their spectroscopy, the impact of the added aromatic moiety was investigated in solution, observing a bathochromic shift in UV-vis absorption, emission and excitation spectra. The structural and electronic properties indicated that the geometry reorganization during the excitation and relaxation processes, and the dipole moment of the ground state, increases the generation of singlet oxygen in solution

Dyes and Pigments published new progress about Dipole moment. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Category: nitriles-buliding-blocks.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Rucka, Lenka published the artcileGenetic and functional diversity of nitrilases in Agaricomycotina, Application of Picolinonitrile, the main research area is Agaricomycotina nitrilase genetic diversity phylogeny; Agaricomycotina; Basidiomycota; cyanide hydratase; homology modeling; nitrilase; nitrile; overproduction; phylogenetic distribution; substrate docking; substrate specificity.

Nitrilases participate in the nitrile metabolism in microbes and plants. They are widely used to produce carboxylic acids from nitriles. Nitrilases were described in bacteria, Ascomycota and plants. However, they remain unexplored in Basidiomycota. Yet more than 200 putative nitrilases are found in this division via GenBank. The majority of them occur in the subdivision Agaricomycotina. In this work, we analyzed their sequences and classified them into phylogenetic clades. Members of clade 1 (61 proteins) and 2 (25 proteins) are similar to plant nitrilases and nitrilases from Ascomycota, resp., with sequence identities of around 50%. The searches also identified five putative cyanide hydratases (CynHs). Representatives of clade 1 and 2 (NitTv1 from Trametes versicolor and NitAg from Armillaria gallica, resp.) and a putative CynH (NitSh from Stereum hirsutum) were overproduced in Escherichia coli. The substrates of NitTv1 were fumaronitrile, 3-phenylpropionitrile, β-cyano-l-alanine and 4-cyanopyridine, and those of NitSh were hydrogen cyanide (HCN), 2-cyanopyridine, fumaronitrile and benzonitrile. NitAg only exhibited activities for HCN and fumaronitrile. The substrate specificities of these nitrilases were largely in accordance with substrate docking in their homol. models. The phylogenetic distribution of each type of nitrilase was determined for the first time.

International Journal of Molecular Sciences published new progress about Agaricomycotina. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Application of Picolinonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Huang, Adrian published the artcileDiscovery of 2-[1-(4-Chlorophenyl)cyclopropyl]-3-hydroxy-8-(trifluoromethyl)quinoline-4-carboxylic Acid (PSI-421), a P-Selectin Inhibitor with Improved Pharmacokinetic Properties and Oral Efficacy in Models of Vascular Injury, Related Products of nitriles-buliding-blocks, the main research area is quinoline preparation P selectin inhibitor SAR.

Previously, we reported the discovery of PSI-697 (1a), a C-2 benzyl substituted quinoline salicylic acid-based P-selectin inhibitor. It is active in a variety of animal models of cardiovascular disease. Compound 1a has also been shown to be well tolerated and safe in healthy volunteers at doses of up to 1200 mg in a phase 1 single ascending dose study. However, its oral bioavailability was low. Our goal was to identify a back up compound with equal potency, increased solubility, and increased exposure. We expanded our structure-activity studies in this series by branching at the α position of the C-2 benzyl side chain and through modification of substituents on the carboxylic A-ring of the quinoline. This resulted in discovery of PSI-421 with marked improvement in aqueous solubility and pharmacokinetic properties. This compound has shown oral efficacy in animal models of arterial and venous injury and was selected as a preclin. development compound for potential treatment of such diseases as atherosclerosis and deep vein thrombosis.

Journal of Medicinal Chemistry published new progress about Arterial injury. 97009-67-1 belongs to class nitriles-buliding-blocks, name is 1-(4-Fluorophenyl)cyclopropanecarbonitrile, and the molecular formula is C10H8FN, Related Products of nitriles-buliding-blocks.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Roy, Palas published the artcileUltrafast Excimer Formation and Solvent Controlled Symmetry Breaking Charge Separation in the Excitonically Coupled Subphthalocyanine Dimer, Product Details of C8H4N2, the main research area is ultrafast excimer formation solvent control symmetry breaking charge separation; excimer; excited states; subphthalocyanine; symmetry breaking charge separation; ultrafast dynamics.

Knowledge of the factors controlling excited state dynamics in excitonically coupled dimers and higher aggregates is critical for understanding natural and artificial solar energy conversion. In this work, we report ultrafast solvent polarity dependent excited state dynamics of the structurally well-defined subphthalocyanine dimer, μ-OSubPc2. Stationary electronic spectra demonstrate strong exciton coupling in μ-OSubPc2. Femtosecond transient absorption measurements reveal ultrafast excimer formation from the initially excited exciton, mediated by intramol. structural evolution. In polar solvents the excimer state decays directly through symmetry breaking charge transfer to form a charge separated state. Charge separation occurs under control of solvent orientational relaxation.

Angewandte Chemie, International Edition published new progress about Broken symmetry. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Product Details of C8H4N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Graves, Brian M. published the artcileComprehensive characterization of mainstream marijuana and tobacco smoke, Recommanded Product: Picolinonitrile, the main research area is marijuana tobacco smoke particle aerodynamics.

Recent increases in marijuana use and legalization without adequate knowledge of the risks necessitate the characterization of the billions of nanoparticles contained in each puff of smoke. Tobacco smoke offers a benchmark given that it has been extensively studied. Tobacco and marijuana smoke particles are quant. similar in volatility, shape, d. and number concentration, albeit with differences in size, total mass and chem. composition Particles from marijuana smoke are on average 29% larger in mobility diameter than particles from tobacco smoke and contain 3.4 times more total mass. New measurements of semivolatile fractions determined that >97% of the mass and volume of the particles from either smoke source are comprised of semivolatile compounds For tobacco smoke and marijuana smoke, resp., 4350 and 2575 different compounds are detected, of which 670 and 536 (231 in common) are tentatively identified, and of these, 173 and 110 different compounds (69 in common) are known to cause neg. health effects through carcinogenic, mutagenic, teratogenic, or other toxic mechanisms. This study demonstrates striking similarities between marijuana and tobacco smoke in terms of their phys. and chem. properties.

Scientific Reports published new progress about Carcinogenicity. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Recommanded Product: Picolinonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Cuate-Gomez, D. H. published the artcilePolycrystalline Erbium Phthalocyanine Thin Films Deposited on Silicon and Porous Silicon by Ultrasonic Spray Pyrolysis: Optical, Morphological, and Electrical Characterizations, Quality Control of 91-15-6, the main research area is erbium phthalocyanine polycrystalline thin film silicon ultrasonic spray pyrolysis.

Conventional inorganic semiconductors are the basis of modern electronics but their properties limit performance for certain applications. Two relevant applications for which these materials are not suitable are: (1) non-planar or flexible devices and (2) large-area prototypes. This limitation has driven the research of a new generation of thin film organic semiconductor materials that can be incorporated in hybrid heterostructures. These materials can be deposited on different substrates at low temperatures and at low cost, from a solution by using a simple method such as spin-coating. Here, we report the development of a low-cost ultrasonic spray pyrolysis (USP) instrument to obtain, by a simple and efficient technique, erbium phthalocyanine (ErPc) polycrystalline thin films incorporated into the Al/c-Si/ErPc/Ni and Al/c-Si/PS/ErPc/Ni heterostructures and their concomitant characterization. For the formation of the porous silicon (PS) layer and the deposition of the ErPc material, metal-assisted chem. etching (MACE) and USP were resp. used. The morphol., optical, and elec. properties were studied thoroughly. FE-SEM micrographs show a noteworthy result; non-agglomerated nanosphere particles were obtained on the c-Si substrates in contrast with the PS layer, where agglomerations are pretty apparent to the sight. Different equations were tested to find the transport mechanism in the heterostructures and the best fit was for the space charge limited current (SCLC) type. Finally, current-time (I-T) measurements were carried out to gain insight into the photocurrent effects. These results show a photo-response with a reverse polarization, and this can be applied for the design of organic hybrid heterostructures in photo-sensor applications.

Journal of Electronic Materials published new progress about Current density. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Quality Control of 91-15-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts