Category: 100-70-9

Zhuo, Liang published the artcileAerobic Visible-Light Induced Intermolecular S-N Bond Construction: Synthesis of 1,2,4-Thiadiazoles from Thioamides under Photosensitizer-Free Conditions, Product Details of C6H4N2, the main research area is thiadiazole preparation green chem; thioamide photochem desulfurization oxidative cyclization.

Aerobic visible-light induced intermol. S-N bond construction has been achieved without the addition of photosensitizer, metal, or base. With this strategy, 1,2,4-thiadiazoles I (R = Ph, 4-methoxyphenyl, thiophen-3-yl, etc.; R1 = 4-methoxyphenyl, 2,6-dimethylphenyl, thiophen-2-yl, etc.) can be obtained from thioamides R/R1C(S)NH2. Preliminary mechanistic investigation suggested that the excited state of thioamides undergoes a single-electron-transfer (SET) process to afford thioamidyl radicals, which can be further transformed into a 1,2,4-thiadiazole through desulfurization and oxidative cyclization. The reaction has good functional group tolerance and represents a green method for the construction of S-N bonds.

European Journal of Organic Chemistry published new progress about Antitumor agents. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Product Details of C6H4N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Li, Zhanhui published the artcileDesign, synthesis, and evaluation of pyrrolidine based CXCR4 antagonists with in vivo anti-tumor metastatic activity, COA of Formula: C6H4N2, the main research area is pyrrolidine preparation antitumor metastatic activity lipophilicity antagonist; Antagonist; CXCL12; CXCR4; Chemokine; GPCR.

The design, synthesis and evaluation of novel CXCR4 antagonists were based on a pyrrolidine scaffold e.g., 3-(1,3-dioxolan-2-yl)-1-(3-methylpyridin-2-yl)propan-1one. The structural exploration/optimization identified numerous potent CXCR4 antagonists, represented by (S)-2-methyl-4-(4-methylpiperazin-1-yl)-6-((2-(3methylpyridin-2-yl)pyrrolidin-1-yl)methyl)pyrimidine, which displayed potent binding affinity to CXCR4 receptor (IC50 = 79 nM competitively displacing fluorescent 12G5 antibody) and inhibited CXCL12 induced cytosolic calcium flux (IC50 = 0.25 nM). Moreover, in a transwell invasion assay, (S)-2-methyl-4-(4-methylpiperazin-1-yl)-6-((2-(3methylpyridin-2-yl)pyrrolidin-1-yl)methyl)pyrimidine significantly mitigated CXCL12/CXCR4 mediated cell migration. The (S)-2-Methyl-4-(4-methylpiperazin-1-yl)-6-((2-(3methylpyridin-2-yl)pyrrolidin-1-yl)methyl)pyrimidine exhibited good physicochem. properties (MW 367, logD7.4 1.12, pKa 8.2) and excellent in vitro safety profiles (e.g., hERG patch clamp IC50 > 30μM and minimal CYP isoenzyme inhibition). Importantly, (S)-2-methyl-4-(4-methylpiperazin-1-yl)-6-((2-(3methylpyridin-2-yl)pyrrolidin-1-yl)methyl)pyrimidine displayed much improved metabolic stability in human and rat liver microsomes. Lastly, (S)-2-Methyl-4-(4-methylpiperazin-1-yl)-6-((2-(3methylpyridin-2-yl)pyrrolidin-1-yl)methyl)pyrimidine demonstrated marked efficacy in a cancer metastasis model in mice. These results strongly support (S)-2-methyl-4-(4-methylpiperazin-1-yl)-6-((2-(3methylpyridin-2-yl)pyrrolidin-1-yl)methyl)pyrimidine as a prototypical lead for the development of promising CXCR4 antagonists as clin. candidates.

European Journal of Medicinal Chemistry published new progress about Antitumor agents. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, COA of Formula: C6H4N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Ertas, Merve published the artcilePotent ribonucleotide reductase inhibitors: Thiazole-containing thiosemicarbazone derivatives, HPLC of Formula: 100-70-9, the main research area is antitumor agents ribonucleotide reductase inhibitors thiazole thiosemicarbazone ADME; antitumor agents; ribonucleotide reductase; thiazole; thiosemicarbazone.

The antioxidant, antimalarial, antibacterial, and antitumor activities of thiosemicarbazones have made this class of compounds important for medicinal chemists. In addition, thiosemicarbazones are among the most potent and well-known ribonucleotide reductase inhibitors. In this study, 24 new thiosemicarbazone derivatives were synthesized, and the structures and purity of the compounds were determined by IR, 1H NMR, 13C NMR, mass spectroscopy, and elemental anal. The IC50 values of these 24 compounds were determined with an assay for ribonucleotide reductase inhibition. Compounds 19, 20, and 24 inhibited ribonucleotide reductase enzyme activity at a higher level than metisazone as standard The cytotoxic effects of these compounds were measured on the MCF7 (human breast adenocarcinoma) and HEK293 (human embryonic kidney) cell lines. Similarly, compounds 19, 20, and 24 had a selective effect on the MCF7 and HEK293 cell lines, killing more cancer cells than cisplatin as standard The compounds (especially 19, 20, and 24 as the most active ones) were then subjected to docking experiments to identify the probable interactions between the ligands and the enzyme active site. The complex formation was shown qual. The ADME (absorption, distribution, metabolism, and excretion) properties of the compounds were analyzed using in-silico techniques.

Archiv der Pharmazie (Weinheim, Germany) published new progress about Antitumor agents. 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

Zhao, Yuqing published the artcilePolymer immobilization effect on excited state of emitting copper complex: Synthesis, characterization and performance improvement, COA of Formula: C6H4N2, the main research area is copper complex dopant polyvinylpyrrolidone electrospinning nanofiber.

In this effort, the correlation between polymer immobilization effect and excited state of emitting Cu complex was discussed. An electron-pulling diamine ligand having an oxadiazole ring and a F atom was synthesized. Its corresponding Cu(I) complex was synthesized with a phosphorus ligand (PPh3) having obvious steric hindrance as auxiliary ligand. Its geometric structure, electronic transition and photophys. parameters were discussed. A distorted tetrahedral coordination field was adopted by this Cu(I) complex. Its onset electronic transition was confirmed as a charge transfer 1 and suffered from structural relaxation badly. Using electrospinning method, this Cu(I) complex was dispersed and immobilized into a polymer host so that structural relaxation of its excited state could be limited. A systematical comparison between various states of this complex, in solution, in solid state and in fibrous samples, was performed. It was finally confirmed that this polymer matrix served as a promising supporting host, offering a rigid and protective microenvironment for dopant mols. which effectively limited their MLCT structural relaxation and improved their photostability.

Journal of Molecular Structure published new progress about Crystal structure. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, COA of Formula: C6H4N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Xu, Huixia published the artcileThermally activated delayed fluorescence of copper(I) complexes using N, N�heteroaromatic of 2-(5-phenyl-1,2,3- triazole)pyridine as ligand, Application In Synthesis of 100-70-9, the main research area is copper complex thermally activated delayed fluorescence phenyl triazolepyridine heteroaromatic.

Two Cu(I) complexes of [Cu(PPh3)2(pptz)]BF4 and [Cu(POP)(pptz)]BF4 using 2-(5-phenyl-1,2,3-three triazole)pyridine (pptzH), tri-Ph phosphine (pph3) and (bis-[2-(di-Ph phosphino) phenyl]ether) (POP) as ligands were synthesized and characterized. The complexes [Cu(PPh3)2(pptz)]BF4 and [Cu(POP)(pptz)]BF4 exhibit thermally activated delayed fluorescence (TADF) features with photoluminescence quantum yields (ϕPL) of 89.87% and 27.82% at room temperature in solid state. The maximum emission peak of [Cu(PPh3)2(pptz)]BF4 is located at 490 nm. The solution-processing organic-light emitting devices (OLEDs) were fabricated by using [Cu(PPh3)2(pptz)]BF4 and [Cu(POP)(pptz)]BF4 as emitters and 4,4â€?4′â€?tris(N-carbazolyl)-triphenylamine (TCTA) as host. The device based [Cu(POP)(pptz)]BF4 displayed the better electroluminescent performance with the maximum current efficiency of 2.1 cd/A than that of device used [Cu(PPh3)2(pptz)]BF4 as emitter.

Journal of Luminescence 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 In Synthesis of 100-70-9.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Giri, Bishnubasu published the artcileFormation, reactivity, photorelease, and scavenging of NO in ruthenium nitrosyl complexes, Product Details of C6H4N2, the main research area is pyridinyltriazinamine preparation reaction ruthenium complex; ruthenium pyridinyltriazinamine phenanthroline nitrosyl complex preparation crystal mol structure; nitrosyl photorelease ruthenium pyridinyltriazinamine phenanthroline complex.

The two newly designed nitrosyl complexes with Enemark-Feltham notation {RuNO}6 and {RuNO}7 configurations have been isolated as the perchlorate salts in the mol. framework [RuII(dmdptz)(phen)(NO)]n+ (dmdptz: N,N-dimethyl-4,6-di(pyridin-2-yl)-1,3,5-triazin-2-amine and phen: 1,10-phenanthroline) [RuII(dmdptz)(phen)(NO+)](ClO4)3 [4](ClO4)3 and [RuII(dmdptz)(phen)(NO·)](ClO4)2 [5](ClO4)2 resp. The single crystal x-ray structures of complexes [RuII(dmdptz)(phen)Cl](ClO4) [1](ClO4), [RuII(dmdptz)(phen)(NO2)](ClO4) [3](ClO4) and [4](ClO4)3 have been determined The π- acceptance of the NO+ moiety in [4](ClO4)3 is reflected from the triple bond characteristic bond length 1.131(5) Å with simultaneous trans angle of 175.3(4)° as a proof of true linear coordination mode. A sizable shift in ν(NO) frequency (Δν = 361 cm-1) on moving from [4](ClO4)3 to [5](ClO4)2 are in good agreement for largely NO centered reduction with the changes in bonding {RuNO}6 [4](ClO4)3 to {RuNO}7 [5](ClO4)2. The redox properties of [4](ClO4)3 along with the precursor complexes, have been investigated. On exposure to visible light in the deoxygenated acetonitrile solution at room temperature both [4](ClO4)3 and [5](ClO4)2 spontaneously transform to their corresponding solvated derivative [RuII(dmdptz)(phen)(CH3CN)](ClO4)2 [2](ClO4)2 via the facile photocleavage of Ru-NO bond with KNO 9.26 × 10-3 min-1 (t1/2 = 74 min) and 4.03 × 10-2 min-1 (t1/2 = 17 min) resp. The photoreleased “”NO”” can be scavenged by biol. relevant target mol. myoglobin as an Mb-NO adduct.

Inorganica Chimica Acta published new progress about Crystal structure. 100-70-9 belongs to class nitriles-buliding-blocks, name is Picolinonitrile, and the molecular formula is C6H4N2, Product Details of C6H4N2.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Louis, Ligimol published the artcilePhotoluminescence and electrochemical studies of tetranuclear ruthenium(II) polypyridyl complexes of benzimidazolyl functionalized pyrenylcalix[4]resorcinarene, Recommanded Product: Picolinonitrile, the main research area is preparation tetranuclear ruthenium polypyridyl benzimidazolyl functionalized pyrenylcalixresorcinarene complex; cyclic voltammetry tetranuclear ruthenium polypyridyl benzimidazolyl functionalized pyrenylcalixresorcinarene complex; luminescence tetranuclear ruthenium polypyridyl benzimidazolyl functionalized pyrenylcalixresorcinarene complex; crystal structure pyrenylcalixresorcinarene compound.

The authors report the hitherto unreported pyrene footed calix[4]resorcinarene (P1) supramol. assembly and its tetranuclear Ru(II) polypyridyl complexes, [{Ru(phen)2}4(L)](ClO4)8 (CP1, 1), [{Ru(bpy)2}4(L)](ClO4)8 (CP2, 2), and [{Ru(P2)2}4(L)](ClO4)8 (CP3, 3) [where, L (7)= 2,8,14,20-tetra(pyren-1-yl)-5,11,17,23-tetrakis((2-(pyridin-2-yl)-1H-benzimidazol-1-yl)methyl)-4,6,10,12,16,18,22,24-octahydroxy-calix[4]resorcinarene and P2 (9) = 2-(pyridin-2-yl)-1H-benzimidazole]. The single crystal structure of 2,8,14,20-tetra(pyren-1-yl)-4,6,10,12,16,18,22,24-octahydroxycalix[4]-resorcinarene (P1, 8) possesses all cis configuration and a boat like conformation with pyrene rings occupying the axial positions. The tetranuclear complexes, CP1, CP2 and CP3, show decreasing energy of 3MLCT luminescence at 298 K but the intensity is increased at 77 K in frozen acetonitrile due to lowering of energy gap between π* of the ligand and the d orbital of ruthenium metal ion. The luminescence quantum yield also was increased considerably in all the complexes when the temperature is decreased from 298 K to 77 K due to the lowering of nonradiative decay pathways. The complexes exhibit a single exponential decay profile in acetonitrile at 298 K. The cyclic voltammograms of the complexes show simultaneous four single electron quasireversible redox processes.

Inorganica Chimica Acta 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

Muley, Arabinda published the artcileHigh phenoxazinone synthase activity of two mononuclear cis-dichloro cobalt(II) complexes with a rigid pyridyl scaffold, SDS of cas: 100-70-9, the main research area is crystal structure cobalt bipyridine triazolylpyridine chloro; cobalt bipyridine triazolylpyridine preparation phenoxazinone synthase activity.

Phenoxazinone synthase (PHS) is a pentanuclear Cu enzyme studied for the last two decades, and though both Mn and Cu complexes were explored extensively, there are only a handful of reports on Co mononuclear moieties. In this regard, the authors have successfully synthesized two cis dichloro Co(II) mononuclear complexes Co(bpy)2Cl2:[1] and Co(L1)2Cl2:[2] with polypyridyl ligands (bpy = 2,2′-bipyridine, L1 = 2,2′-(1-methyl-1H-1,2,4-triazole-3,5-diyl)dipyridine) and thoroughly characterized them by different spectroscopic and anal. techniques such as FTIR, 1H NMR, UV-visible spectroscopy and ESI mass spectra. The mol. structures of 1 and 2 are elucidated by single-crystal x-ray diffraction studies. Spectral properties and redox behavior for 1-2 were examined The complexes show phenoxazinone synthase activity under ambient conditions and thorough examination of the acquired spectroscopic data imply excellent reactivity for both. Kinetic parameters for both the complexes are evaluated and the turnover numbers (kcat value) of these two complexes are 201.24 h-1 and 249.57 h-1 for 1 and 2, resp., which are quite high compared to those of previously reported similar complexes. The possible mechanistic route is also established with the help of mass spectroscopy and titrimetric anal. was performed to detect H2O2 that is a key intermediate formed in the catalysis and thus to prove the involvement of O2 in the oxidation This report offers an in-depth summary of metal ion involvement and the extent of the phenoxazinone synthase activity.

New Journal of 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, SDS of cas: 100-70-9.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Bori, Jugal published the artcileA new route for the synthesis of 2,4-bis(2-pyridyl)-6-(pyridyl)pyrimidines: Synthesis and characterization of Co(II), Ni(II) complexes of 2,4,6-tris(2-pyridyl)pyrimidine, HPLC of Formula: 100-70-9, the main research area is cobalt nickel pyridyl pyrimidine complex preparation crystal structure DFT; EPR spectra cobalt nickel pyridyl pyrimidine complex.

Using 2-acetylpyridine, sodium hydroxide and 2-cyanopyridine, 2,4,6-tris(2-pyridyl)pyrimidine (L1) was synthesized in good yield. Similarly, 2,4-bis(2-pyridyl)-6-(3-pyridyl)pyrimidine (L2) and 2,4-bis(2-pyridyl)-6-(4-pyridyl)pyrimidine (L3) were also synthesized by using resp. acetylpyridine. 2-Acetylpyridine reacted with sodium hydroxide to produce 2-oxo-2-(2-pyridyl)-1-ethanide, which behaves as a nucleophile towards 2-cyanopyridine. All three pyrimidines are potential multidentate ligand and by using L1 complexes of composition [Ni(L1)(H2O)3](NO3)2·4H2O (1), [Ni(L1)2](NO3)2·2H2O (2) and [Co(L1)2](NO3)2·1.5H2O (3) were isolated and structurally characterized. In 1-3, L1 behaves as a tridentate pincer type ligand, DFT calculations performed on L1-L3 indicate that energy difference between HOMO and LUMO is 4.544, 4.643 and 4.533 eV, resp.

Inorganica Chimica Acta published new progress about Crystal structure. 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

Saha, Sayantani published the artcileCatalytic Recycling of a Th-H Bond via Single or Double Hydroboration of Inactivated Imines or Nitriles, Quality Control of 100-70-9, the main research area is metallacycle thorium amide preparation crystal mol structure catalyst hydroboration; selective dihydroboration nitrile aldimine inactivated imine nitrile hydroboration catalyst.

The catalytic activity of the metallacycle thorium amide [(Me3Si)2N]2Th[κ2-(N,C)-CH2Si(CH3)2N(SiMe3)] (Th1) is presented for the selective dihydroboration of nitriles (-CN) with pinacolborane (HBpin). Using significantly low catalyst loading (0.1 mol %), the dihydroborated amines were achieved by the hydroboration of the -CN triple bond attached with aromatic, aliphatic, and heteroatom backbones with high turnover frequency (TOF) as compared to all the reported homogeneous metal catalysts in this reaction. In addition, for aldimines (-C=N-), the hydroboration precatalyst Th2 has been synthesized by the protonolysis of a seven-membered N-heterocyclic iminato ligand (LH) and Th1. The Th2 crystal structure and its performance in the synthesis of hydroborated secondary amine are also here presented. Detailed kinetic studies and thermodn. and stoichiometric experiments provided us with cumulative evidence supporting the proposed mechanism for the aforementioned reactions.

ACS Catalysis 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