Tag: M.W:100-200

HPLC of Formula: 1762-34-1. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 5,5′-Dimethyl-2,2′-bipyridine, is researched, Molecular C12H12N2, CAS is 1762-34-1, about A novel Au(III) complex with the 5,5′-dimethyl-2,2′-bipyridine ligand: Synthesis, characterization, X-ray crystal structure and biological evaluation. Author is Kondori, Tahere; Ghaznavi, Habib; Afshari, Fahimeh; Shahraki, Sheida; Shahraki, Jafar; Dusek, Michal; Kucerakova, Monika; Shahraki, Omolbanin.

A novel gold complex: [Au(5 5′-dmbipy)(Cl)2] (a) which dmbipy is 5, 5′-Dimethyl-2, 2′-bipyridine was synthesized and different techniques were applied to confirm the chem. structure. The structure consists of a gold cation chelated by one neutral bipyridine ligand two (Cl-) ions and one (Cl-) ion inside and outside of the coordination sphere, resp. Thermodn. parameters (ΔH° ΔS° and ΔG°) calculated from FS-DNA interaction of complex showed that electrostatic binding have an essential function in the interaction of DNA-Au(III) complex. Addnl. relative viscosity of DNA did not change while the concentration increased. As proved by CD spectra the DNA structure changed. The synthesized compound exhibited an effective cytotoxic behavior against cancerous cell lines. The mol. docking exploration indicated the non-intercalative mode of binding which confirms the obtained results from spectroscopy viscometry and CD techniques.

In addition to the literature in the link below, there is a lot of literature about this compound(5,5′-Dimethyl-2,2′-bipyridine)HPLC of Formula: 1762-34-1, illustrating the importance and wide applicability of this compound(1762-34-1).

Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

HPLC of Formula: 1762-34-1. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 5,5′-Dimethyl-2,2′-bipyridine, is researched, Molecular C12H12N2, CAS is 1762-34-1, about Theoretical and experimental study of torsional potentials, molecular structure (monomer and dimer), vibrational analysis and molecular characteristics of some dimethyl bipyridines. Author is Ravindranath, L.; Reddy, B. Venkatram.

This study deals with the determination of torsional potentials, mol. geometry in monomer and dimer form and vibrational assignments of 4,4′-dimethyl-2,2′-bipyridine (4DB); 5,5′-dimethyl-2,2′-bipyridine (5DB); and 6,6′-dimethyl-2,2′-bipyridine (6DB) using quantum chem. calculations carried out by d. functional theory (DFT) employing B3LYP functional in conjunction with 6-311++G(d,p) basis set. Existence of inter-mol. hydrogen bonds was predicted. Fourier Transform IR (FTIR) and Fourier Transform Raman (FT-Raman) spectra were recorded and vibrational anal. of the mols. was made using potential energy distribution (PED) and eigen vectors obtained in the computations. Observed and calculated frequencies agreed with an rms error 9.20, 8.21, and 8.33 cm-1 for 4DB, 5DB, and 6DB, resp. 1H and 13C NMR spectra were simulated using time-dependent DFT ; compared with the recorded exptl. spectra of the samples in Chloroform-d (CDCl3) solvent and observed that the chem. shifts agree well with their theor. counterparts. Electronic transitions were analyzed using exptl. and simulated UV-Vis spectra of the three mols. Mol. characteristics like HOMO-LUMO; thermodn. parameters; and mol. electrostatic surface potential (MESP) quantified with natural charges obtained by NBO anal. are also investigated.

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Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Safety of 5,5′-Dimethyl-2,2′-bipyridine. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 5,5′-Dimethyl-2,2′-bipyridine, is researched, Molecular C12H12N2, CAS is 1762-34-1, about Boosting Photocatalytic Activities for Organic Transformations through Merging Photocatalyst and Transition-Metal Catalyst in Flexible Polymers. Author is Pan, Yao; Zhang, Nan; Liu, Chun-Hua; Fan, Shilu; Guo, Song; Zhang, Zhi-Ming; Zhu, Yuan-Yuan.

The merger of photocatalysis and transition-metal catalysis is of particular interest to develop useful and challenging synthetic methodologies. The catalytic activities of conventional dual-catalytic systems, however, are limited by the low synergistic efficiency between discrete catalytic centers due to their long average distance in solution Herein we carefully decorated Ir(III) photosensitizers and Ni(II) transition-metal catalyst into flexible polymers to afford two polymer-supported dual catalysts (P1-Ni and P2-Ni). These polyelectrolyte-type metallopolymers assembled into spherical polymer particles in some polar solvents. Their unique mol. and assembled structure contributed to shortening the distance between catalytic centers and increasing the local catalysts′ concentration within the catalyst, thereby greatly facilitating their electron, energy, and organic radical transfers during the catalytic cycles. The enhanced energy interaction and matched redox potential between two catalytic centers within the polymer were confirmed by steady- and transient-state luminescent spectra and cyclic voltammetry. These features enable them in catalyzing challenging organic transformations that involve efficiently incorporated photocatalytic and transition-metal catalytic cycles. We demonstrated that these two catalysts were highly effective in catalyzing C-S cross-coupling, C-O functionalized, C-N cross-coupling, and C-C cross-coupling reactions with broad substrate scopes and low catalyst loadings with turnover numbers of ~3100, ~1500, ~1400, and ~500, resp. This work provides a general methodol. to merge photosensitizer and transition-metal catalyst in a flexible polymer for significantly boosting the catalytic activity.

In addition to the literature in the link below, there is a lot of literature about this compound(5,5′-Dimethyl-2,2′-bipyridine)Safety of 5,5′-Dimethyl-2,2′-bipyridine, illustrating the importance and wide applicability of this compound(1762-34-1).

Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Syntheses, reactivity, structures and photocatalytic properties of mononuclear ruthenium(II) complexes supported by 1,4,7-trimethyl-1,4,7-triazacyclononane (Me3tacn) ligands, published in 2021-02-01, which mentions a compound: 1762-34-1, Name is 5,5′-Dimethyl-2,2′-bipyridine, Molecular C12H12N2, Related Products of 1762-34-1.

Treatment of ruthenium(II) precursor [(Me3tacn)Ru(DMSO)Cl2] (Me3tacn = 1,4,7-trimethyl-1,4,7-triazacyclononane, DMSO = dimethylsulfoxide) (1) with concentrated HCl in the presence of air afforded a ruthenium(III) complex [(Me3tacn)RuCl3·H2O] (2). Reaction of 2, 2,2′-bipyridine or substituted 2,2′-bipyridine, and zinc metal powder in the presence of sodium perchlorate gave the corresponding cationic aquaruthenium(II) complex [(Me3tacn)Ru(R-bpy)(H2O)](ClO4)2 (bpy = 2,2′-bipyridine, R = H, 3; 4,4′-Me2, 4; 5,5′-Me2, 5; 4,4′-di-tBu, 6). The hydrate ligand in complexes 3 and 5 could be substituted by acetonitrile or pyridine forming complexes [(Me3tacn)Ru(5,5′-Me2-bpy)(MeCN)](ClO4)2 (7) and [(Me3tacn)Ru(R-bpy)(py)](ClO4)2 (py = pyridine, R = H (8), R = 5,5′-Me2 (9)), resp. Interaction of [(Me3tacn)Ru(bpy)(H2O)](PF6)2 with phenylacetylene in methanol afforded a ruthenium-carbene complex [(Me3tacn)(bpy)Ru:C(OMe)CH2Ph](PF6)2 (10). All complexes are well characterized by IR, UV/visible, and NMR spectroscopies. The mol. structures of 1, 1·2H2O, 4·2H2O, 7, 8, 9, and 10 were also established by single-crystal X-ray diffraction. The photocatalysis properties of complexes 3, 5, and 6 for H2 evolution by water splitting were also studied.

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Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 5,5′-Dimethyl-2,2′-bipyridine, is researched, Molecular C12H12N2, CAS is 1762-34-1, about Cross-Electrophile C(sp2)-Si Coupling of Vinyl Chlorosilanes, the main research direction is cross electrophile coupling vinyl chloro silane carbon silicon bond; cross-coupling; nickel; organosilanes; reductive coupling; vinylsilanes.Category: benzodioxans.

The cross-electrophile coupling has become a powerful tool for C-C bond formation, but its potential for forging the C-Si bond remains unexplored. Here we report a cross-electrophile Csp2-Si coupling reaction of vinyl/aryl electrophiles with vinyl chlorosilanes. This new protocol offers an approach for facile and precise synthesis of organosilanes with high mol. diversity and complexity from readily available materials. The reaction proceeds under mild and non-basic conditions, demonstrating a high step economy, broad substrate scope, wide functionality tolerance, and easy scalability. The synthetic utility of the method is shown by its efficient accessing of silicon bioisosteres, the design of new BCB-monomers, and studies on the Hiyama cross-coupling of vinylsilane products.

In addition to the literature in the link below, there is a lot of literature about this compound(5,5′-Dimethyl-2,2′-bipyridine)Category: benzodioxans, illustrating the importance and wide applicability of this compound(1762-34-1).

Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Rosales-Vazquez, Luis D.; Valdes-Garcia, Josue; Bazany-Rodriguez, Ivan J.; German-Acacio, Juan M.; Martinez-Otero, Diego; Vilchis-Nestor, Alfredo R.; Morales-Luckie, Raul; Sanchez-Mendieta, Victor; Dorazco-Gonzalez, Alejandro researched the compound: 5,5′-Dimethyl-2,2′-bipyridine( cas:1762-34-1 ).Safety of 5,5′-Dimethyl-2,2′-bipyridine.They published the article 《A sensitive photoluminescent chemosensor for cyanide in water based on a zinc coordination polymer bearing ditert-butyl-bipyridine》 about this compound( cas:1762-34-1 ) in Dalton Transactions. Keywords: photoluminescent chemosensor cyanide zinc coordination polymer ditert butyl bipyridine. We’ll tell you more about this compound (cas:1762-34-1).

Sensitive and direct sensing of cyanide in buffered aqueous solutions at pH = 7.0 by three new blue photoluminescent zinc-1,4-cyclohexanedicarboxylato coordination polymers bearing di-alkyl-2,2′-bipyridines has been achieved. Specifically, a Zn-polymer with the general formula: {[Zn2(H2O)2(e,a-cis-1,4-chdc)2(4,4′-dtbb)2]·7H2O}n, (1,4-chdc = 1,4-cyclohexanedicarboxylato and 4,4′-dtbb = 4,4′-ditert-butyl-2,2′-bipyridine) has been synthesized in high yield and studied as a luminescent chemosensor for halides, pseudohalides and a series of oxyanions in neutral water. CN- ions can be quant. detected by this polymer based on complete quenching (λem = 434 nm) in the sub-micromolar concentration range with a pronounced selectivity over common anions such as acetate, bromide and iodide. The quenching response (KSV = 9.7(±0.2) × 104 M-1) by the addition of CN- was also observed in the presence of typical interfering anions with a very low detection limit of 0.9μmol L-1 in buffered water at pH = 7.0. On the basis of the crystal structure and solid state CPMAS 13C-NMR correlation and 1H NMR, IR-ATR, MS-ESI(+) and SEM-EDS experiments, the optical change is attributed to the efficient release of its corresponding ditert-butyl-bipyridine, with the simultaneous formation of a zinc cyanide complex. The CPMAS 13C-NMR spectrum of the coordination polymer is consistent with the symmetry of the crystal structure. The use of flexible coordination polymers as fluorescent sensors for fast and selective detection of cyanide ions in pure aqueous solutions has been unexplored until now.

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Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 5,5′-Dimethyl-2,2′-bipyridine( cas:1762-34-1 ) is researched.Category: benzodioxans.Yamada, Shuya; Kaneda, Takeshi; Steib, Philip; Murakami, Kei; Itami, Kenichiro published the article 《Dehydrogenative Synthesis of 2,2′-Bipyridyls through Regioselective Pyridine Dimerization》 about this compound( cas:1762-34-1 ) in Angewandte Chemie, International Edition. Keywords: pyridine palladium catalyst regioselective dimerization dehydrogenative silver pivalic acid; bipyridyl preparation; 2,2′-bipyridyls; C−H arylation; dehydrogenative coupling; palladium; pyridines. Let’s learn more about this compound (cas:1762-34-1).

2,2′-Bipyridyls have been utilized as indispensable ligands in metal-catalyzed reactions. The most streamlined approach for the synthesis of 2,2′-bipyridyls is the dehydrogenative dimerization of unfunctionalized pyridine. Herein, we report on the palladium-catalyzed dehydrogenative synthesis of 2,2′-bipyridyl derivatives The Pd catalysis effectively works with an AgI salt as the oxidant in the presence of pivalic acid. A variety of pyridines regioselectively react at the C2-positions. This dimerization method is applicable for challenging substrates such as sterically hindered 3-substituted pyridines, where the pyridines regioselectively react at the C2-position. This reaction enables the concise synthesis of twisted 3,3′-disubstituted-2,2′-bipyridyls as an underdeveloped class of ligands.

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Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

SDS of cas: 1762-34-1. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 5,5′-Dimethyl-2,2′-bipyridine, is researched, Molecular C12H12N2, CAS is 1762-34-1, about New Organometallic Ruthenium(II) Compounds Synergistically Show Cytotoxic, Antimetastatic and Antiangiogenic Activities for the Treatment of Metastatic Cancer. Author is Wang, Yuchen; Jin, Jiahui; Shu, Liwei; Li, Tongyu; Lu, Siming; Subarkhan, Mohamed Kasim Mohamed; Chen, Chao; Wang, Hangxiang.

In this study, we newly designed and synthesized a small library of ten structurally related C,N-cyclometalated ruthenium(II) complexes containing various pyridine-functionalized NHC ligand and chelating bipyridyl ligands (e.g., 2,2′-bipyridine, 5,5′-dimethyl-2,2′-bipyridine, and 1,10-phenanthroline (phen)). The complexes were well characterized by NMR, electrospray ionization-mass spectrometry, and single-crystal X-ray structure analyses. Among the new ruthenium(II) derivatives, we identified that the complex Ru8 bearing bulky moieties (i.e., phen and pentamethyl benzene) had the most potent cytotoxicity against all tested cancer cell lines, generating dose- and cell line-dependent IC50 values at the range of 3.3-15.0μM. More significantly, Ru8 not only efficiently inhibited the metastasis process against invasion and migration of tumor cells but also exhibited potent antivascular effects by suppressing HUVEC cells migration and tube formation in vitro and blocking vessel generation in vivo (chicken chorioallantoic membrane model). In a metastatic A2780 tumor xenograft-bearing mouse model, administration of Ru8 outperformed antimetastatic agent NAMI-A and clin. approved cisplatin in terms of antitumor efficacy and inhibition of metastases to other organs. Overall, these data provided compelling evidence that the new cyclometalated ruthenium complex Ru8 is an attractive agent because of synergistically suppressing bulky tumors and metastasized tumor nudes. Therefore, the complex Ru8 deserves further investigations.

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Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

Product Details of 1762-34-1. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 5,5′-Dimethyl-2,2′-bipyridine, is researched, Molecular C12H12N2, CAS is 1762-34-1, about Regulation of Substituent Effects on Configurations and Magnetic Performances of Mononuclear DyIII Single-Molecule Magnets. Author is Zhang, Sheng; Mo, Wenjiao; Zhang, Jiangwei; Zhang, Zengqi; Yin, Bing; Hu, Dengwei; Chen, Sanping.

A series of mononuclear DyIII compounds, [Dy(tmpd)3(4,4′-dmpy)] (1), [Dy(tffb)3(4,4′-dmpy)] (2), [Dy(tffb)3(5,5′-dmpy)] (3), and [Dy(tmpd)3(5,5′-dmpy)] () [tmpd = 4,4,4-trifluoro-1-(4-methoxyphenyl)-1,3-butanedione, tffb = 4,4,4-trifluoro-1-(4-fluorophenyl)-1,3-butanedione, 4,4′-dmpy = 4,4′-dimethyl-2,2′-bipyridyl, and 5,5′-dmpy = 5,5′-dimethyl-2,2′-bipyridyl], have been synthesized by modifying β-diketonate ligands and capping N-donor co-ligands. DyIII ions in 1-4 possess N2O6 octacoordinated environments. Compounds 1 and 2 exhibit distorted trigonal dodecahedron configurations, while 3 and 4 display distorted square antiprismatic configurations. Systematic investigations of the a.c. measurements indicate the different magnetic relaxation dynamics with energy barriers (Ueff) of 66 K (1, 45 cm-1), 189 K, (2, 131 cm-1), 115 K (3, 79 cm-1), and 205 K (4, 142 cm-1). To deeply understand their different magnetic behaviors, the magnetic anisotropies of 1-4 were studied by ab initio calculations From ab initio calculations, the energies of the first excited state (KD1) are consistent with the exptl. Ueff under zero d.c. field. Compound 4 presents the largest Ueff because of the smallest gX,Y and μqTM as well as the most strong axial crystal field parameters (CFPs) among compounds 1-4. The M vs. H data exhibit butterfly-shaped hysteresis loops at 2 K for 1-4. The different coordination geometries, the magnetic dynamics, the electrostatic repulsion, and CFPs result from the different substituent effects of ligands, including the electronic effect, the steric effect, and the positions of substituted groups. The different coordination geometries, the magnetic dynamics, the electrostatic repulsion, and the crystal field parameters result from the different substituent effects of ligands, including the electronic effect, the steric effect, and the positions of substituted groups.

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Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Two novel Sm(III) complexes with different aromatic carboxylic acid ligands: Synthesis, crystal structures, luminescence and thermal properties, published in 2019-01-15, which mentions a compound: 1762-34-1, mainly applied to preparation crystal structure samarium aromatic carboxylate bipyridine complex; thermal decomposition samarium aromatic carboxylate bipyridine complex; antibacterial activity samarium aromatic carboxylate bipyridine complex; luminescence samarium aromatic carboxylate bipyridine complex, Category: benzodioxans.

Two novel Sm(III) complexes, [Sm(3,4-DMBA)3(3,4-DMHBA)(5,5′-DM-2,2′-bipy)]2 (1), [Sm(3-MOBA)3(5,5′-DM-2,2′-bipy)]2 (2) (3,4-dimethylbenzoic acid = 3,4-DMHBA, 3-methoxybenzoic acid = 3-MOHBA and 5,5′-dimethyl-2,2′-bipyridine = 5,5′-DM-2,2′-bipy), were successfully synthesized and assembled. The crystal structures were determined by single crystal x-ray diffraction. Two complexes were characterized by the elemental anal., IR, powder x-ray diffraction, thermal gravimetric technol. Because of the different ligands, the structures of the two complexes are very different, especially the structure of the complex 1. Each central Sm(III) ion of complex 1 was coordinated by three deprotonated 3,4-DMBA-,one unprotonated 3,4-DMHBA and one 5,5′-DM-2,2′-bipy, which has rarely been reported before. However each central Sm(III) ion of complex 2 was only coordinated via three deprotonated 3-MOBA- and one 5,5′-DM-2,2′-bipy. In addition, the thermal decomposition mechanism and the three-dimensional IR accumulation spectra of the evolved gas during the thermal decomposition for two complexes were studied by the simultaneous TG/DSC-FTIR technol. What’s more, the luminescence properties of two complexes are also discussed. Finally, the bacteriostatic activities of two complexes were evaluated against Staphlococcus aureus, Escherichia coli and Candida albicans.

In addition to the literature in the link below, there is a lot of literature about this compound(5,5′-Dimethyl-2,2′-bipyridine)Category: benzodioxans, illustrating the importance and wide applicability of this compound(1762-34-1).

Reference:
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem