Category: 91-15-6

Kimura, Takeshi published the artcilePreparation and Optical and Electrochemical Properties of Boron (III) Subphthalocyanines with One to Three Trithiole Rings, Synthetic Route of 91-15-6, the main research area is boron subphthalocyanine trithiole ring preparation electrochem redox emission ESR.

The reaction of 5,6-dicyano-4,7-diethylbenzo[1,2,3]trithiole (1) with trichloroborane in p-xylene and subsequent substitution of the chloro group with phenol produced boron subphthalocyanine (2) with three trithiole rings. Upon treatment of 1 with trichloroborane in p-xylene in the presence of unsubstituted phthalonitrile or tetrafluorophthalonitrile, unsym. subphthalocyanines (3, 4, 6, and 7) with one or two trithiole rings were obtained after the reaction with phenol. The Q-band absorption of 2 appeared at λmax = 611 nm in the UV-visible spectrum and the emission was observed at λe = 630 nm. Decreasing the number of fused trithiole rings and Et groups resulted in higher energy shifts of the Q-band absorption in the UV-visible spectra and downfield chem. shifts of the 11B NMR signals. Compounds 2-4 were treated by pentachloro antimonate in CH2Cl2, the solution of which showed strong ESR signals. The structures of simplified model compounds were optimized using the DFT method with the Gaussian 09 program at the B3LYP/6-31G (d, p) level.

European Journal of Inorganic Chemistry published new progress about ESR (electron spin resonance). 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Synthetic Route of 91-15-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Sun, Zhuming published the artcileHarnessing the Intrinsic Reactivity of 2-Cyano-Substituted Heteroarenes to Achieve Programmable Double Alkylation, Related Products of nitriles-buliding-blocks, the main research area is alpha tertiary amine regioselective preparation; cyanoarene acid sequential double alkylation photochem cross coupling.

Study of tertiary radicals, generated through visible light decarboxylation, alkylating 2-cyanoarenes through radical cross-coupling at ipso- or para- positions of cyano groups was reported. Synthesis of a variety of α-tertiary amines containing quaternary centers, e.g., I was described. The approach enabled regioselective sequential double alkylation on either 2-cyanopyridine or 2-cyanopyrimidine with high efficiency. This report illustrated synthetic utility of α-heteroatom-substituted tertiary radicals in synthesis of substituted heteroarenes.

Advanced Synthesis & Catalysis published new progress about Alkylation catalysts, regioselective. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Related Products of nitriles-buliding-blocks.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Biryan, Fatih published the artcileElectrical, thermal behaviors and synthesis of intramolecular cobalt phthalocyanine with single-chain polymer structure, Safety of Phthalonitrile, the main research area is vinyl polymer cobalt phthalocyanine complex graphene nanocomposite.

Firstly, poly[4-((4-vinylbenzyl)oxy)phthalonitrile]-co-styrene, [poly(VBOP-co-St)], which is used as a linear copolymer precursor containing phthalonitrile pendant group was prepared from copolymerization of VBOP and St by atom transfer radical polymerization method at 110°. Then, complex synthesis of cobalt phthalocyanine in the single-chain polymer (SCP-CoPc complex) via the intramol. macrocyclization reaction of cobalt and phthalonitrile group in poly(VBOP-co-St) was carried out at 150° in the presence of excess cyclohexanol. Both linear copolymer precursor and formation of cobalt phthalocyanine within a single-chain polymer were confirmed by FT-IR, 1H-NMR, 13C-NMR and UV/Vis spectroscopy techniques. Particularly, the formation of SCP-CoPc complex was characterized by almost disappearance of -C≃N band at 2230 cm-1 of the FT-IR and appearance of Q band around 672 nm and the B band in the near UV region at 350 nm of UV/Vis spectroscopy. The pure poly(VBOP-co-St), SCP-CoPc complex and the residue SCP-CoPc complex heated to 500° were characterized by SEM images, and the element analyses were estimated from x-ray energy dispersive spectroscopy (x-ray EDS). The EDS elemental anal. results of the residual of SCP-CoPc complex degraded to 500° showed that CoO [cobalt(II)oxide] compound occurred. The thermal properties of poly(VBOP-co-St) and SCP-CoPc complex were investigated through thermogravimetric anal. and differential scanning calorimeter. The conducting nanographene-based SCP-CoPc composites were prepared DC and a.c. elec. conductivity and dielec. properties were investigated. The ac dielec. measurements of poly(VBOP-co-St), SCP-CoPc complex and composites were investigated at room temperature between 100 and 20 kHz depending on the a.c. conductivities. Also, the activation energy profile of SCP-CoPc/4% (by weight) nanographene composite was revealed by measuring the DC conductivity of individual composite material.

Polymer Bulletin (Heidelberg, Germany) published new progress about Atom transfer radical polymerization. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Safety of Phthalonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

El-Mahdy, K. M. published the artcileConvenient Methodology for Some Heterocyclization Reactions with Thioxopyrimidine Derivatives, Application In Synthesis of 91-15-6, the main research area is fused pyrimidine heterocyclic preparation; thioxopyrimidine dimedone benzaladehyde phthalonitril eelectrophilic substitution nucleophilic reaction.

A simple and efficient method for derivatization of the pyrimidine nucleus is developed. The readily available 6-amino-2-thioxo-2,3-dihydropyrimidin-4(1H)-one has been used as a versatile building block for the synthesis of thioxopyrimidine derivatives A variety of novel fused pyrimidines has been prepared via nucleophilic and/or electrophilic reactions of thioxopyrimidine derivatives

Russian Journal of Organic Chemistry published new progress about Electrophilic substitution reaction. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Application In Synthesis of 91-15-6.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Evtushok, Vasilii E. published the artcileSynthesis of pyrazolo- and [1,2,4]triazolo-[1,5-a]quinolin-9-ols by cycloaddition to 8-hydroxyquinoline N-imide, Product Details of C8H4N2, the main research area is amino hydroxyquinolinium mesitylenesulfonate internal alkyne cycloaddition; alkene amino hydroxyquinolinium mesitylenesulfonate cycloaddition; pyrazoloquinolinol preparation; nitrile amino hydroxyquinolinium mesitylenesulfonate cycloaddition; triazoloquinolinol preparation.

The reaction of 1-amino-8-hydroxyquinolinium mesitylenesulfonate with alkenes and alkynes containing electron-withdrawing substituents was performed in MeCN-K2CO3 system and gave the resp. 9-hydroxypyrazolo[1,5-a]quinolines I [R = H, CO2Me, Ph; R1 = Ac, CO2Me, CO2Et, COPh]. The reaction with acetonitrile and aromatic nitriles in aqueous 2N KOH solution gave the resp. 9-hydroxy[1,2,4]triazolo[1,5-a]quinolines II [R = Me, C6H5, 2-NCC6H4, 3,4-(MeO)2C6H3].

Chemistry of Heterocyclic Compounds (New York, NY, United States) published new progress about 1,3-Dipolar cycloaddition reaction. 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

Martin-Torres, Inmaculada published the artcileEnantioselective Alkoxycyclization of 1,6-Enynes with Gold(I)-Cavitands: Total Synthesis of Mafaicheenamine C, Formula: C8H4N2, the main research area is gold cavitand complex preparation catalyst enantioselective alkoxycyclization enyne mechanism; mafaicheenamine C enantioselective synthesis absolute configuration; alkoxycyclization; asymmetric synthesis; gold(I) cavitands; natural product synthesis.

Chiral gold(I)-cavitand complexes have been developed for the enantioselective alkoxycyclization of 1,6-enynes. This enantioselective cyclization has been applied for the first total synthesis of carbazole alkaloid (+)-mafaicheenamine C (I) and its enantiomer, establishing its configuration as R. The cavity effect was also evaluated in the cycloisomerization of dienynes. A combination of experiments and theor. studies demonstrates that the cavity of the gold(I) complexes forces the enynes to adopt constrained conformations, which results in the high observed regio- and stereoselectivities.

Angewandte Chemie, International Edition published new progress about Absolute configuration (of mafaicheenamine C). 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Formula: C8H4N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Jafari, Fariba published the artcileGuanidine complex of copper supported on boehmite nanoparticles as practical, recyclable, chemo and homoselective organic-inorganic hybrid nanocatalyst for organic reactions, COA of Formula: C8H4N2, the main research area is copper immobilized guanidine modified boehmite nanoparticle preparation thermal stability; nitrile copper guanidine modified boehmite nanoparticle catalyst homoselective cycloaddition; phenyl tetrazole preparation; sulfide copper guanidine modified boehmite nanoparticle catalyst chemoselective sulfoxidation; sulfinyl preparation.

Boehmite (BO) nanoparticles (NPs) were prepared via the injection of aqueous NaOH solution to aqueous aluminum nitrate solution at room temperature Afterwards, a new complex of copper was immobilized on BO-NPs (Cu-Guanidine@BO-NPs). This heterogeneous nanocatalyst was used as a practical, recyclable, chemo and homoselective nanocatalyst in the organic processes, i.e. the preparation of tetrazole five-membered heterocycles and chemoselective sulfoxidation of sulfides using H2O2 as oxidant. In this sense, the prepared nanocatalyst was characterized by AAS, N2 adsorption-desorption isotherms, WDX, EDS, SEM, and TGA techniques. The reusability of this catalyst was investigated in the described organic reactions for several runs without notable loss of its catalytic activity. Moreover, all of the tetrazole and sulfoxide derivatives were isolated in high Turn Over Number (TON) and Turn Over Frequency (TOF) numbers indicating the high activity and selectivity of Cu-Guanidine@BO-NPs in the described reactions.

Applied Organometallic Chemistry published new progress about [3+2] Cycloaddition reaction (homoselective). 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, COA of Formula: C8H4N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Deeba, Rana published the artcileHomogeneous molecular catalysis of the electrochemical reduction of N2O to N2: redox vs. chemical catalysis, Category: nitriles-buliding-blocks, the main research area is nitrogen oxide electrochem reduction homogeneous mol catalysis.

Homogeneous electrochem. catalysis of N2O reduction to N2 is investigated with a series of organic catalysts and rhenium and manganese bipyridyl carbonyl complexes. An activation-driving force correlation is revealed with the organic species characteristic of a redox catalysis involving an outer-sphere electron transfer from the radical anions or dianions of the reduced catalyst to N2O. Taking into account the previously estimated reorganization energy required to form the N2O radical anions leads to an estimation of the N2O/N2O- standard potential in acetonitrile electrolyte. The direct reduction of N2O at a glassy carbon electrode follows the same quadratic activation driving force relationship. Our anal. reveals that the catalytic effect of the mediators is due to a smaller reorganization energy of the homogeneous electron transfer than that of the heterogeneous one. The phys. effect of “”spreading”” electrons in the electrolyte is shown to be unfavorable for the homogeneous reduction Importantly, we show that the reduction of N2O by low valent rhenium and manganese bipyridyl carbonyl complexes is of a chem. nature, with an initial one-electron reduction process associated with a chem. reaction more efficient than the simple outer-sphere electron transfer process. This points to an inner-sphere mechanism possibly involving partial charge transfer from the low valent metal to the binding N2O and emphasizes the differences between chem. and redox catalytic processes.

Chemical Science published new progress about Electric current-potential relationship. 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

Menga, Davide published the artcileActive-Site Imprinting: Preparation of Fe-N-C Catalysts from Zinc Ion-Templated Ionothermal Nitrogen-Doped Carbons, HPLC of Formula: 91-15-6, the main research area is iron nitrogen carbon catalyst ionothermal carbonization degradation.

Atomically dispersed Fe-N-C catalysts are considered the most promising precious-metal-free alternative to state-of-the-art Pt-based oxygen reduction electrocatalysts for proton-exchange membrane fuel cells. The exceptional progress in the field of research in the last �0 years is currently limited by the moderate active site d. that can be obtained. Behind this stands the dilemma of metastability of the desired FeN4 sites at the high temperatures that are believed to be a requirement for their formation. It is herein shown that Zn2+ ions can be utilized in the novel concept of active-site imprinting based on a pyrolytic template ion reaction throughout the formation of nitrogen-doped carbons. As obtained atomically dispersed Zn-N-Cs comprising ZnN4 sites as well as metal-free N4 sites can be utilized for the coordination of Fe2+ and Fe3+ ions to form atomically dispersed Fe-N-C with Fe loadings as high as 3.12 wt%. The Fe-N-Cs are active electocatalysts for the oxygen reduction reaction in acidic media with an onset potential of E0 = 0.85 V vs. RHE in 0.1 M HClO4. Identical location at. resolution transmission electron microscopy imaging, as well as in situ electrochem. flow cell coupled to inductively coupled plasma mass spectrometry measurements, is employed to directly prove the concept of the active-site imprinting approach.

Advanced Energy Materials published new progress about Electric current-potential relationship. 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

Bobrowska, Diana M. published the artcileCarbon nanoonion-ferrocene conjugates as acceptors in organic photovoltaic devices, Safety of Phthalonitrile, the main research area is carbon nanoonion ferrocene conjugate organic photovoltaic device.

Many macromol. systems, including carbon nanostructures (CNs), have been synthesized and investigated as acceptors in photovoltaic devices. Some CNs have shown interesting electrochem., photophys. and electrocatalytic properties and have been used in energy and sustainability applications. This study focuses on the covalent functionalization of carbon nanoonion (CNO) surfaces with ferrocene moieties to obtain donor-acceptor systems involving CNOs as acceptors. The systems were synthesized and characterized by IR, Raman, UV-vis and fluorescence spectroscopies, thermogravimetric anal., SEM, nitrogen adsorption and electrochem. measurements. The HOMO-LUMO levels were calculated to evaluate the possibility of using these systems in photoactive devices. In this study, for the first time, the CNO-based derivatives were applied as acceptors in the active layer of photovoltaic devices. This study is the first to use large CNO-based derivatives as acceptors in organic photovoltaic devices, and a power conversion efficiency as high as 1.89% was achieved.

Nanoscale Advances published new progress about Electric current-potential relationship. 91-15-6 belongs to class nitriles-buliding-blocks, name is Phthalonitrile, and the molecular formula is C8H4N2, Safety of Phthalonitrile.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts