Category: 100-70-9

Zhan, Yong published the artcileMechanofluorochromism based on BOPIM complexes: The effect of substituents and regulation of the direction of the emission color changes, Related Products of nitriles-buliding-blocks, the main research area is preparation boron pyridyl imidazole complex; crystal mol structure boron pyridyl imidazole complex; mechanofluorochromism boron pyridyl imidazole complex; thermal decomposition boron pyridyl imidazole complex.

Novel boron 2-(2′-pyridyl)imidazole (BOPIM) complexes T1, T2 and T3 with different substituents (including bromo, tert-Bu and methoxyl) on the benzene ring of BOPIM dyes were designed and synthesized, and their optical properties in both solution and the solid state were studied and compared. The three compounds exhibited typical intramol. charge transfer (ICT) characteristics. Solvent-dependent UV-visible absorption, fluorescence emission spectra and quantum chem. calculation indicated a mol. push-pull electronic structure. Their ICT degrees increased with the sequence of T1 < T2 < T3. The anal. of the x-ray crystal structure revealed the twisted mol. conformation of BOPIM dyes. Furthermore, they showed remarkable reversible mechanofluorochromic (MFC) features under mech. force. The MFC activities could be tuned easily by changing the substituents on the BOPIM dyes. T1 exhibited emission color change from bright green to yellowish green with a spectral red shift of only 22 nm under mech. stimuli, whereas T2 and T3 gave the large spectral red shifts of 36 and 30 nm. Electronic and steric effects of the substitutes were proved playing significant roles in regulating the ICT effect and intermol. interactions. More importantly, the remarkable effect of substituents on the MFC behaviors of BOPIM dyes will provide an effective way to obtain novel high-contrast MFC dyes. Dyes and Pigments published new progress about Crystal structure. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Related Products of nitriles-buliding-blocks.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Rozhkova, Yuliya S. published the artcileSynthesis of novel racemic 3,4-dihydroferroceno[c]pyridines via the Ritter reaction, Related Products of nitriles-buliding-blocks, the main research area is dihydroferroceno pyridine preparation crystal mol structure; Ritter reaction methyl ferrocenylpropanol nitrile methansulfonic acid.

A new approach for the synthesis of functionalized racemic 3,4-dihydroferroceno[c]pyridines via the Ritter reaction of 2-methyl-1-ferrocenylpropan-1-ol with nitriles in the presence of methansulfonic acid was developed. The scope and limitations of the reaction were evaluated. Selected racemic 3,4-dihydroferroceno[c]pyridines were successfully separated by preparative HPLC on a Chiralcel OD-H column. The absolute configuration of the enantiomers was determined by x-ray crystal structure anal.

Tetrahedron Letters published new progress about Crystal structure. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Related Products of nitriles-buliding-blocks.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Long, Xiangdong published the artcileDirect Oxidative Amination of the Methyl C-H Bond in N-Heterocycles over Metal-Free Mesoporous Carbon, Synthetic Route of 100-70-9, the main research area is amide heterocyclic preparation density functional theory kinetic study; heterocycle oxidative amination mesoporous carbon catalyst SAR.

Herein, direct and efficient oxidative amination of the Me C-H bond in a wide range of N-heterocycles such as 2-methylpyridine, 3-methylquinoline, 4-methylpyrimidine, etc. to access the corresponding amides RC(O)NH2 (R = pyridin-2-yl, quinolin-2-yl, 1-methyl-1H-imidazol-2-yl, etc.) over metal-free porous carbon is successfully developed. To understand the fundamental structure-activity relationships of carbon catalysts, the surface functional groups and the graphitization degree of porous carbon have been purposefully tailored through doping with nitrogen or phosphorus. The results of characterization, kinetic studies, liquid-phase adsorption experiments, and theor. calculations indicate that the high activity of the carbon catalyst is attributed to the synergistic effect of surface acidic functional groups (hydroxyl/carboxylic acid/phosphate) and more graphene edge structures exposed on the surface of carbon materials with a high graphitization degree, in which the role of acidic functional groups is to adsorb the substrate mol. and the role of the graphene edge structure is to activate O2.

ACS Catalysis published new progress about Adsorption energy. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Synthetic Route of 100-70-9.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Levay, Krisztina published the artcileTuning the chemoselectivity of the Pd-catalyzed hydrogenation of pyridinecarbonitriles: an efficient and simple method for preparing pyridyl- or piperidylmethylamines, Synthetic Route of 100-70-9, the main research area is pyridinecarbonitrile palladium catalyst hydrogenation; pyridylmethylamine chemoselective preparation; piperidylmethylamine chemoselective preparation.

An effective method for the chemoselective, liquid-phase heterogeneous catalytic hydrogenation of some pyridinecarbonitriles [4-, 3- or 2-pyridinecarbonitrile] to the corresponding pyridyl- or piperidylmethylamines over a Pd/C catalyst was developed. Using our process, not only could an adequate primary amine selectivity to the desired pyridine derivatives [4-, 3- or 2-(aminomethyl)pyridine] be achieved, but it had also been proved to be effective for the selective preparation of piperidylmethylamines [4-, 3- or 2-(aminomethyl)piperidine] by further hydrogenation of the pyridine ring in addition to the nitrile group. The essence of this method was that the synthesis could be fine-tuned by simply adjusting the amount of acidic additive (H2SO4) based on whether the product to be prepared was pyridyl- or piperidylmethylamine. Complete conversions were obtained under mild conditions (30-50°C, 6 bar), in all cases, but the very high selectivity to 2-(aminomethyl)piperidine or 2-(aminomethyl)pyridine (98 and 93%, resp.) decreased to 76% (3-(aminomethyl)piperidine) and 72% (3-(aminomethyl)pyridine), as well as 10% (2-(aminomethyl)piperidine) and 57% (2-(aminomethyl)pyridine) by changing the position of the nitrile group in the pyridine ring. The possible reasons for the diversed primary amine selectivities observed in the hydrogenation of the constitutional isomers of pyridinecarbonitriles were confirmed by quantum chem. calculations (DFT). Adsorption energy profiles regarding the interactions between the nitrile starting materials, imine intermediates or amine products and palladium were computed to clarify the selectivity changes.

Catalysis Science & Technology published new progress about Adsorption energy. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Synthetic Route of 100-70-9.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Zhu, Daoyun published the artcileStudy of Direct Synthesis of DMC from CO2 and Methanol on CeO2: Theoretical Calculation and Experiment, SDS of cas: 100-70-9, the main research area is dimethyl carbonate synthesis carbon dioxide methanol ceria theor calculation.

Rare earth metal oxides are known to have good catalytic effectiveness in the direct synthesis of di-Me carbonate (DMC) from CO2 and methanol. In this work, we screened ceria (CeO2) catalysts by analyzing their capacity for CO2 adsorption. The effects of the crystal surface morphol. and oxygen vacancy on the catalytic performance of the ceria catalyst were studied by using d. functional theory (DFT). The results show that the (110) surface and higher oxygen vacancy content can better promote the synthesis of DMC and that the rod-shaped CeO2 catalyst has a better catalytic effect. The oxygen vacancy content on the catalyst was improved by freeze-drying and confirmed by thermogravimetric anal., Raman spectroscopy, and ESR. The freeze-dried CeO2 (CeO2-FD) then showed a higher catalytic performance. The conversion rate of methanol and the yield of DMC were 33.95% and 584 mmol g-1cat, resp., under mild conditions (140°C and 1 MPa).

Industrial & Engineering Chemistry Research published new progress about Adsorption energy. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, SDS of cas: 100-70-9.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Li, Quan-Quan published the artcileSubstituent changes in the salen ligands of CuIINaI-complexes to induce various structures and catalytic activities towards 2-imidazolines from nitriles and 1,2-diaminopropane, Recommanded Product: Picolinonitrile, the main research area is copper sodium salen complex preparation cyclization catalyst magnetism DFT; crystal structure copper sodium salen complex.

Based on various comparable salen ligands, three synthesized CuIINaI-complexes present efficient catalytic activities for the coupling and cyclization reaction of 1,2-diaminopropane with nitriles towards 2-imidazolines. The catalytic results show that salen ligands with an electron-donating substituent and small steric hindrance improve the catalytic activity.

Chemical Communications (Cambridge, United Kingdom) published new progress about Crystal structure. 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

Babu, Venkata Nagarjuna published the artcileExocyclic N-Acyliminium Ion (NAI) Cyclization: Access to Fully Substituted Oxazoles and Furocoumarins, Application of Picolinonitrile, the main research area is one pot synthesis oxazole furocoumarin UV vis fluorescence study; exocyclic acyliminium ion intermediate cyclization.

A concise, one-pot route to oxazoles and furocoumarins has been reported. The key step in this transformation involves in situ generation of N-acyliminium ion (NAI) precursor under catalyst and solvent-free conditions and their further transformations promoted by superacid in the same pot. We have also presented the exptl. evidence for the involvement of proto-solvated novel exocyclic N-acyliminium ion. Further, the UV-visible and fluorescence studies revealed that few of the compounds reported here exhibited emission of blue light upon irradiation in EtOH in the region of 404-422 nm.

Journal of Organic Chemistry published new progress about Crystal structure. 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

Ocansey, Edward published the artcileIridium and Palladium CO2 Hydrogenation in Water by Catalyst Precursors with Electron-Rich Tetrazole Ligands, Quality Control of 100-70-9, the main research area is tetrazolylpyridyl iridium palladium complex preparation catalyst carbon dioxide hydrogenation; iridium chloride cyclometalation reaction tetrazolylpyridine ligand; palladium chloride cyclometalation reaction tetrazolylpyridine ligand.

Hydrogenation of CO2 to formate serves as a means of H2 storage. By using robust, electron-rich and bulky NN bidentate tetrazolylpyridyl ligands, the authors prepared CO2 hydrogenation Ir(III) and Pd(II) catalyst precursors (3-7) that operate in H2O as a solvent. In situ1H NMR spectroscopic data obtained when the hydrogenation catalyst is 5, detects a hydrido bridged binuclear Ir intermediate compound is formed prior to the formation of the catalytically active Ir hydride species. This hydrido bridged Ir intermediate is observable by in situ1H NMR spectroscopy even after extended periods of storage. Product formation in the CO2 hydrogenation, catalyzed by these tetrazolylpyridyl Ir and Pd catalysts, proceeds via either CO2 hydrogenation or NaHCO3 reduction

Organometallics published new progress about Crystal structure. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Quality Control of 100-70-9.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Panomsuwan, Gasidit published the artcileIn situ solution plasma synthesis of silver nanoparticles supported on nitrogen-doped carbons with enhanced oxygen reduction activity, Category: nitriles-buliding-blocks, the main research area is silver nanoparticle nitrogen doped carbon electrocatalyst plasma synthesis; oxygen reduction reaction silver nanoparticle nitrogen doped carbon electrocatalyst.

Silver nanoparticles supported on nitrogen-doped carbons (Ag/NC) were in situ synthesized by a solution plasma process. In the solution plasma, Ag nanoparticles were produced via the sputtering of Ag electrode, while the NC supports were simultaneously synthesized from 2-cyanopyridine (C6H4N2). The results of the characterization show that Ag nanoparticles had good crystallinity and the NC supports possessed an amorphous structure. The oxygen reduction reaction (ORR) catalyzed on Ag/NC proceeded via the co-existence of two and four-electron pathways in alk. solution, with the four-electron pathway being found to be more dominant. An enhanced ORR activity of Ag/NC was attributed to the synergistic effect of Ag nanoparticles and NC supports. Moreover, Ag/NC exhibited long-term durability and high resistance to methanol oxidation in comparison with the com. Pt/C catalyst.

Materials Letters published new progress about Amorphous structure. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Category: nitriles-buliding-blocks.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Galani, Sunil M. published the artcileEnhanced Thermocatalytic Activity of Porous Yellow ZnO Nanoflakes: Defect- and Morphology-Induced Perspectives, Application In Synthesis of 100-70-9, the main research area is thermocatalysis porous yellow zinc oxide nanoflake defect morphol; heterogeneous catalysis; nanostructures; oxygen vacancies; tetrazole; zinc oxide.

A simple and effective strategy is reported for the synthesis of yellow ZnO (Y-ZnO) nanostructures with abundant O vacancies on a large scale, through the sulfidation of ZnO followed by calcination. The developed strategy allows retention of the overall morphol. of Y-ZnO compared with pristine ZnO and the extent of O vacancies can be tuned. The influence of O deficiencies, the extent of defect sites, and the morphol. of ZnO on its solution-phase thermocatalytic activity was evaluated in the synthesis of 5-substituted-1H-tetrazoles with different nitriles and Na azide. A reasonable enhancement in the reaction rate was achieved by using Y-ZnO nanoflakes (Y-ZnO NFs) as a catalyst in place of pristine ZnO NFs. The reaction was complete within 6 h at 110° with Y-ZnO NFs, whereas it took 14 h at 120° with pristine ZnO NFs. The catalyst is easy to recycle without a significant loss in catalytic activity.

Chemistry – An Asian Journal published new progress about Catalysis (thermo-). 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Application In Synthesis of 100-70-9.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts