Category: 100-70-9

Cai, Mingzhong published the artcileRecyclable and Reusable Pd(OAc)2/XPhos-SO3Na/PEG-400/H2O System for Cyanation of Aryl Chlorides with Potassium Ferrocyanide, SDS of cas: 100-70-9, the main research area is reusable palladium acetate XPhos sulfonate catalyst cyanation aryl chloride.

Pd(OAc)2/XPhos-SO3Na in a mixture of poly(ethylene glycol) (PEG-400) and water is shown to be a highly efficient catalyst for the cyanation of aryl chlorides with potassium ferrocyanide. The reaction proceeded smoothly at 100 or 120°C with K2CO3 or KOAc as base, delivering a variety of aromatic nitriles in good to excellent yields. The isolation of the crude products is facilely performed by extraction with cyclohexane and more importantly, both expensive Pd(OAc)2 and XPhos-SO3Na in PEG-400/H2O system could be easily recycled and reused at least six times without any apparent loss of catalytic efficiency.

Catalysis Letters published new progress about Cyanation. 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

Xu, Feng published the artcileHypervalent Iodine(III)-Mediated Regioselective Cyanation of Quinoline N-Oxides with Trimethylsilyl Cyanide, Recommanded Product: Picolinonitrile, the main research area is hypervalent iodine regioselective cyanation quinoline oxide trimethylsilyl cyanide; cyanoquinoline preparation.

A regioselective cyanation of quinoline N-oxides with trimethylsilyl cyanide was developed by using (Diacetoxyiodo) benzene (PIDA) as mediated hypervalent iodine(III) reagent under metal-free and base-free reaction conditions to obtain 2-cyanoquinolines. The efficient PIDA reagent could play the role of an activator of the substrates and an accelerator of N-O bond cleavage. The reaction system featured a wide range of substrate suitability and high yields. The procedure was enlarged gram-scale to synthesize the tuberculosis (TB) inhibitor. Finally, according to some exptl. results, a plausible mechanism for the cyanation reaction is proposed.

Advanced Synthesis & Catalysis published new progress about Cyanation. 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

Dorman, P. Matisha published the artcileAn analysis of the rotational ground state and lowest-energy vibrationally excited dyad of 3-cyanopyridine: Low symmetry reveals rich complexity of perturbations, couplings, and interstate transitions, Recommanded Product: Picolinonitrile, the main research area is cyanopyridine perturbation coupling interstate transition rotational ground state.

The rotational spectrum of 3-cyanopyridine from 130 to 360 GHz was recorded, and an anal. of the ground state and two lowest-energy excited vibrational states was completed. Almost 6700 new transitions were measured for the ground state and fit to a partial octic, distorted-rotor Hamiltonian with low error (σfit < 0.05 MHz). The first two excited vibrational states, ν30 and ν21, are an isolated dyad that exhibits both a- and b-type Coriolis perturbations and requires a two-state, least-squares fit to fully predict the rotational spectrum and determine accurate spectroscopic constants Quartic and sextic distortion constants were determined for the dyad, along with seven symmetry-allowed perturbation terms: Ga, GaJ, Fbc, FbcK, Gb, GbJ, and GbK. Numerous resonances, including those following a-type selection rules, ΔKa = 2 or ΔKa = 4, and b-type selection rules, ΔKa = 3 or ΔKa = 5, were observed and fit. For ν30 and ν21, the energy difference (ΔE30,21 = 15.7524693 (37) cm-1), both Coriolis coupling constants (ζ30,21a = 0.8327 (9) and ΔE30,21b = -0.0181 (3)), and vibration-rotation interaction constants were determined exptl. and compared to theor. values determined computationally. Combined with the work on the vibrationally excited dyads of 4-cyanopyridine, Ph isocyanide, benzonitrile, and phenylacetylene, the coupling in ν30 and ν21 provides an opportunity to compare the Coriolis interactions of these analogus mono-substituted aromatic mols. in unusual detail. Addnl., this work improves the ground-state rotational constants and centrifugal distortion constants of 3-cyanopyridine and provides the fundamental constants needed to support an astronomical search for 3-cyanopyridine in the interstellar medium. Journal of Molecular Spectroscopy published new progress about Analysis. 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

Zhao, Yun-Xiu published the artcileNeonicotinoid thiacloprid transformation by the N2-fixing bacterium Microvirga flocculans CGMCC 1.16731 and toxicity of the amide metabolite, Recommanded Product: Picolinonitrile, the main research area is Microvirga Daphnia neonicotinoid thiacloprid transformation amide metabolite toxicity.

Thiacloprid is a widely-used neonicotinoid insecticide, but its enzymic conversion and the toxicity of the amide metabolite are poorly understood. Here, a N2-fixing bacterium, Microvirga flocculans CGMCC 1.16731, was reported to metabolize thiacloprid via hydration and hydroxylation to thiacloprid amide and 4-hydroxy thiacloprid resp. M. flocculans transformed 90.5% of 0.63 mmol/L thiacloprid in 30 h with a half-life of 9.0 h. In soil, the bacterium transformed 92.4% of 80 μmol/kg soil thiacloprid in 9 d. A cobalt-type nitrile hydratase (NHase) composed of an α-subunit (TnhA) and a β-subunit (TnhB) converted thiacloprid to thiacloprid amide. Co-expression of activator (TnhC) with NHase could improve the TnhA solubility and therefore enhanced 4-folds higher NHase activity. The NHase produced recombinantly in Escherichia coli transformed 97% of 0.76 mmol/L thiacloprid in 10 min. M. flocculans NHase had a Km value of 0.63 mmol/L and Vmax of 10.2 μmol/min/mg toward thiacloprid. Thiacloprid amide has higher toxic effect on growth of M. flocculans than thiacloprid, whereas lower toxic on the aquatic invertebrate Daphnia magna. Both thiacloprid and thiacloprid amide inhibited tnhA transcription. This increases our understanding of the enzymic mechanism of environmental fate of thiacloprid and toxicity of its amide metabolite toward soil microbes and aquatic organisms.

International Biodeterioration & Biodegradation published new progress about Aquation. 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

Kumar, Deepak published the artcileSyntheses and characterizations of calcium and strontium based coordination compounds with the 5-(2-pyridyl)tetrazolate ligand, respectively exhibiting extended 1 D and 2 D structures, SDS of cas: 100-70-9, the main research area is calcium strontium pyridyltetrazolate complex preparation crystal structure luminescence; thermal stability calcium strontium pyridyltetrazolate complex.

Coordination compounds of calcium and strontium with 5-(2-pyridyl)tetrazolate ligand (2-PTZ) were obtained by the reactions of the resp. metal nitrates with 2-cyanopyridine, 2-cyanoacetamide and sodium azide in aqueous solutions Both the complexes have similar composition i.e. [M(2-PTZ)2(H2O)4]n.2nH2O where M = Ca(II) (1) and Sr(II) (2). The products were characterized by FTIR spectra and single-crystal x-ray diffractions. Their photoluminescences, bandgaps, and thermal properties were studied. Single crystal x-ray diffractions revealed that both 1 and 2 have distorted square anti-prismatic mol. geometries wherein the two 2-PTZ anions act as bidentate ligands by coordinating via their pyridine-N and tetrazole-N atoms. In both the mols. six water mols., of which four acting as monodentate ligands, and the remaining two in the lattices were present. The lattice H2O mols. significantly stabilized the structures through N··H··O hydrogen bonds with the 2-PTZ ligands in the structures. Compound 2 (with around 50% decomposition) shows better thermal stability than calcium-based compound 1(72% decomposition).

Journal of Molecular Structure published new progress about Band gap. 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

Hu, Yong-Xu published the artcileNovel Ir(III) complexes ligated with 2-(2,6-difluoropyridin-3-yl)benzo[d]thiazole for highly efficient OLEDs with mild efficiency roll-off, Quality Control of 100-70-9, the main research area is iridium complex ligated difluoropyridinylbenzothiazole OLED efficiency.

2-Phenylbenzothiazole-based Ir(III) complex [(bt)2Ir(acac)] is a class of typical yellow phosphorescence material, which has been widely used in OLEDs. However, (bt)2Ir(acac) exhibited only mild photoluminescence quantum efficiency (PLQY) of 0.26-0.28. To further improve the luminous efficiency of benzothiazole-based Ir(III) complex and then boost the corresponding electroluminescent performance, (fpbt)2Ir(pic) and (fpbt)2Ir(tftp) were successfully synthesized, where 2-(2,6-difluoropyridin-3-yl)benzo[d]thiazole (fpbt) was applied as C∩N main ligand, and 2-pyridine carboxylic acid (pic), 2-(3-(trifluoromethyl)-1H-1,2,4-triazol-5-yl)pyridine (tftp) acted as different auxiliary ligands. Both (fpbt)2Ir(pic) and (fpbt)2Ir(tftp) presented excellent PLQYs (0.93-0.95) and high thermostability (330-360 °C). The vacuum-deposited devices following the architecture of ITO/TAPC/CBP: dopant/TPBi/Liq/Al demonstrated prominent performances. Of them, (fpbt)2Ir(pic)-doped OLEDs exhibited better efficiencies of 20.6%, 68.8 cd A-1, and 40.8 l m W-1 while maintaining very mild efficiency roll-off. Such outstanding electrophosphorescent performances were further investigated, which was probably attributed to the following factors: (1) high PLQY; (2) good electron mobility; (3) uniform film-forming property.

Dyes and Pigments published new progress about Band gap. 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

Senapati, Rabinarayan published the artcileA Versatile VMPO Catalyst Prepared In Situ for Oxidative Ammonolysis of Isomeric Picolines and Xylenes, Recommanded Product: Picolinonitrile, the main research area is picoline xylene oxidative ammonolysis vanadomolybdophosphoric acid supported titania catalyst.

The V2O5-MoO3-P2O5 (VMPO) catalyst has been prepared in situ by thermal decomposition of vanado-molybdophosphoric acid (PMoV) on TiO2 support at 475°C. The TiO2 supported VMPO catalysts are characterized by FT-IR, XRD, BET surface area, NH3-TPD, and H2-TPR. Morphol. of the catalyst has been studied by TEM. The accumulated data indicate decomposition of PMoV and presence of phosphate and pyrophosphate phases of molybdenum and vanadium after calcination. TPD and TPR studies exhibit the moderate acidity and presence of V4+ in the material, resp. The VMPO catalyst has been used for ammoxidation of six different compounds including three isomeric picolines and three isomeric xylenes to the corresponding nitriles with the yield of 90-96%.

Russian Journal of General Chemistry published new progress about Acidity. 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

Dong, Yansong published the artcileA General Strategy for Macrotheranostic Prodrug Activation: Synergy between the Acidic Tumor Microenvironment and Bioorthogonal Chemistry, Quality Control of 100-70-9, the main research area is prodrug tumor pH imaging; bioorthogonal chemistry; cancer; drug delivery; photodynamic therapy; self-assembly.

Prodrugs activated by endogenous stimuli face the problem of tumor heterogeneity. Bioorthogonal prodrug activation that utilizes an exogenous click reaction has the potential to solve this problem, but most of the strategies currently used rely on the presence of endogenous receptors or overexpressed enzymes. We herein integrate the acidic, extracellular microenvironment of a tumor and a click reaction as a general strategy for prodrug activation. This was achieved by using a tumor pH-responsive polymer containing tetrazine groups, which formed unreactive micelles in the blood but disassembled in response to tumor pH. The vinyl ether group on the macrotheranostic prodrug (CyPVE) is activated by the tetrazine groups, which was confirmed by tumor-specific fluorescence activation and phototoxicity restoration. Therefore, the bioorthogonal reactions in the context of the ubiquitous acidic tumor microenvironment can provide a general strategy for bioorthogonal prodrug activation.

Angewandte Chemie, International Edition published new progress about Acidity. 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

Tak, Raj K. published the artcileLigand-enabled, copper-catalyzed electrophilic amination for the asymmetric synthesis of β-amino acids, Application In Synthesis of 100-70-9, the main research area is amino acid beta cyclic linear enantioselective synthesis solvent effect; electrophilic amination copper catalyst isoxazolidinone nitrene; asym desymmetrization kinetic resolution nitrene transfer.

Catalytic asym. nitrene transfer has emerged as a reliable method for the synthesis of nitrogen-containing chiral compounds Herein, we report the copper-catalyzed intramol. asym. electrophilic amination of aromatic rings. The reactive intermediate is a copper-alkyl nitrene generated from isoxazolidin-5-ones. Copper catalysis promotes three classes of asym. transformations, namely, asym. desymmetrization, parallel kinetic resolution, and kinetic resolution, expanding the repertoire of alkyl nitrene transfer and providing various cyclic and linear β-amino acids in their enantioenriched forms.

Organic Letters published new progress about Amination. 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

Batori, Sandor published the artcileSynthetic procedure to pyrido[2,1-f][1,2,4]triazinium salt and related compounds, HPLC of Formula: 100-70-9, the main research area is pyridotriazinium perchlorate preparation; amination cyclocondensation reaction pyridinyl ketone amine.

Pyrido[2,1-f][1,2,4]triazinium perchlorates such as I (R = H, Me, Ph, t-Bu, Cl, 4-morpholinyl, Et2N; R1 = Ph, 4-ClC6H4) were prepared using N-aminations of pyridines and cyclocondensation reactions as key steps. I (R = H; R1 = Ph) formed a hydroxydihydropyridotriazinium perchlorate in the presence of water. 3,4-Dihydropyrido[2,1-f][1,2,4]triazinium perchlorates and a pyrimidotriazinium perchlorate were also prepared using similar methods.

Tetrahedron published new progress about Amination. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, HPLC of Formula: 100-70-9.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts