Month: April 2022

Galenko, Ekaterina E.; Novikov, Mikhail S.; Shakirova, Firuza M.; Shakirova, Julia R.; Kornyakov, Ilya V.; Bodunov, Vladimir A.; Khlebnikov, Alexander F. published the article 《Isoxazole Strategy for the Synthesis of 2,2′-Bipyridine Ligands: Symmetrical and Unsymmetrical 6,6′-Binicotinates, 2,2′-Bipyridine-5-carboxylates, and Their Metal Complexes》. Keywords: sym binicotinate bipyridine carboxylate metal complex preparation; unsym binicotinate bipyridine carboxylate metal complex preparation.They researched the compound: 5,5′-Dimethyl-2,2′-bipyridine( cas:1762-34-1 ).Category: benzodioxans. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:1762-34-1) here.

An effective strategy was developed for the synthesis of new 2,2′-bipyridine ligands, sym. and unsym. 6,6′-binicotinates, and 2,2′-bipyridine-5-carboxylates, from 4-propargylisoxazoles. The synthesis of sym. 2,2′-disubstituted 6,6′-binicotinates was achieved using the Eglinton reaction of 5-methoxy-4-(prop-2-yn-1-yl)isoxazoles with Cu(OAc)2, followed by Fe(NTf2)2/Au(NTf2)tBuXPhos-catalyzed isomerization of the so-formed mixture of isoxazole/azirine-substituted biacetylenic intermediates. Unsym. 2,2′-disubstituted 6,6′-binicotinates were prepared via a copper-free Sonogashira coupling of 5-methoxy-4-(prop-2-yn-1-yl)isoxazoles with 6-bromonicotinates to give Me 6-(3-(5-methoxyisoxazol-4-yl)prop-1-ynyl)pyridine-3-carboxylates, followed by a transformation of the propargylisoxazole moiety of the adduct into the pyridine fragment under Fe(II)/Au(I) relay catalysis conditions. 6-(Pyrid-2-yl)nicotinates were synthesized by a Stille-type coupling of 2-(tributylstannyl)pyridine with 6-bromonicotinates. Several cyclopalladated complexes of a new series of 6,6′-binicotinates and 2,2′-bipyridine-5-carboxylates and the homoleptic Cu(I) complex were synthesized in high yields.

When you point to this article, it is believed that you are also very interested in this compound(1762-34-1)Category: benzodioxans and due to space limitations, I can only present the most important information.

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

HPLC of Formula: 1762-34-1. 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 High sensitivity and selectivity of aminoantipyrine schiff base for recognition of Fe2+. Author is Chen, Sheng-tian; Zhang, Yu; Zhao, Jian-ying; Ma, Kui-rong; Li, Rong-qing; Tang, Guo-dong.

An aminoantipyrine based chemosensor, (E)-1,5-dimethyl-4-((2-(4-methylpyridin-2-yl)pyridin-4-yl)methyleneamino)-2-phenyl-1,2-dihydropyrazol-3-one(L), derived from 4-aminoantipyrine and 2-(4-methylpyridin-2-yl) isonicotinaldehyde, was synthesized and the optical and metal sensing properties were investigated. The chemosensor L showed a selective colorimetric sensing ability for Fe2+ by changing colors from pale yellow to deep red in water-ethanol (9:1, V/V) medium, which facilitates the ‘naked-eye’ recognition of Fe2+ from other examined metal ions. The complex stoichiometry of Fe2+ to L(1:3,[FeL3]2+) was obtained by Job’s method. The association constant was determined to be 3.70×1021 L3·mol-3. The present results indicate that the chemosensor L could be used as a selective, sensitive colorimetric sensor for Fe2+.

When you point to this article, it is believed that you are also very interested in this compound(1762-34-1)HPLC of Formula: 1762-34-1 and due to space limitations, I can only present the most important information.

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

Category: benzodioxans. 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. Compound: 5,5′-Dimethyl-2,2′-bipyridine, is researched, Molecular C12H12N2, CAS is 1762-34-1, about Self-supported rhodium catalysts based on a microporous metal-organic framework for polymerization of phenylacetylene and its derivatives.

A series of heterogeneous metal-organic framework (MOF)-supported rhodium (Rh) hybrid catalysts with varying amounts of Rh are first applied to the coordination polymerization of phenylacetylene and its derivatives with or without cocatalysts in different organic solvents under a nitrogen atm. or in water media under an air atm. In comparison with the known homogeneous and heterogeneous Rh catalysts, these MOF-supported Rh catalysts exhibit not only a channel confinement effect on the polymer mol. weight distribution but also a more remarkable cooperation effect, polar solvent acceleration effect, “”on water”” effect, and cocatalyst acceleration effect on the catalytic activity. As a result, these heterogeneous Rh catalysts have the advantages of an extremely high activity of up to 1.5 x 107 g molRh-1 h-1, cis-selectivity of up to 99%, and reusability of up to 10 times, affording cis-transoidal PPAs and their functional derivatives having single-handed helical conformation or aggregation-induced emission properties with moderate mol. weights and narrow mol. weight distributions. As far as we are aware, such extremely efficient Rh catalysts as well as multiple reusable heterogeneous Rh catalysts have never been reported.

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

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Chemistry – A European Journal called 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, which mentions a compound: 1762-34-1, SMILESS is CC1=CN=C(C=C1)C1=NC=C(C)C=C1, Molecular C12H12N2, Synthetic Route of C12H12N2.

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

Zhang, Bo; Li, Wei-An; Li, Jun; Xu, Yu-Ping; Xu, Ya-Ru; Wang, Wen-Hao; Zou, Guo-Dong published the article 《[Ni(5,5′-dmbpy)3]2Ag4.9I8.9·4H2O: A discrete iodoargentate with transition metal complexes》. Keywords: nickel bipyridine iodoargentate complex preparation photocurrent photoelec; crystal structure nickel bipyridine iodoargentate complex.They researched the compound: 5,5′-Dimethyl-2,2′-bipyridine( cas:1762-34-1 ).Recommanded Product: 1762-34-1. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:1762-34-1) here.

Using the transition metal complex as templating agent, a new discrete iodoargentate compound, [Ni(5,5′-dmbpy)3]2Ag4.9I8.9·4H2O (5,5′-dmbpy = 5,5′-dimethyl-2,2′-bipyridine) (1) was solvothermally prepared and structurally characterized. Compound 1 has a discrete anionic moiety of [Ag4.9I8.9]4- constructed by three types of fundamental building units, i.e., [AgI2] dumbbell, [AgI3] triangle and [AgI4] tetrahedron. It possesses a band gap of 2.07 eV, and exhibits fascinating photoelec. property with the photocurrent value of around 0.5μA/cm2. Its thermal stability and Hirshfeld surface analyses were also investigated.

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

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 1762-34-1, is researched, SMILESS is CC1=CN=C(C=C1)C1=NC=C(C)C=C1, Molecular C12H12N2Journal, ACS Catalysis called Dual Catalytic Platform for Enabling sp3 α C-H Arylation and Alkylation of Benzamides, Author is Rand, Alexander W.; Yin, Hongfei; Xu, Liang; Giacoboni, Jessica; Martin-Montero, Raul; Romano, Ciro; Montgomery, John; Martin, Ruben, the main research direction is benzamide arylation alkylation chemoselective enantioselective photoredox.Application In Synthesis of 5,5′-Dimethyl-2,2′-bipyridine.

A dual catalytic sp3 α C-H arylation and alkylation of benzamides with organic halides is described. This protocol exhibits an exquisite site selectivity, chemoselectivity, and enantioselectivity pattern, offering a complementary reactivity mode to existing sp3 arylation or alkylations via transition metal catalysis or photoredox events.

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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 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, mainly applied to preparation mononuclear ruthenium trimethyltriazacyclononane bipyridine complex; crystal structure mononuclear ruthenium trimethyltriazacyclononane bipyridine complex; cyclic voltammetry mononuclear ruthenium trimethyltriazacyclononane bipyridine complex; water slitting photocatalyst mononuclear ruthenium trimethyltriazacyclononane bipyridine complex, Safety of 5,5′-Dimethyl-2,2′-bipyridine.

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 Regulation of Substituent Effects on Configurations and Magnetic Performances of Mononuclear DyIII Single-Molecule Magnets, the main research direction is mononuclear dysprosium beta diketonate bipyridyl preparation crystal mol structure; single mol magnet mononuclear dysprosium beta diketonate bipyridyl complex.Reference of 5,5′-Dimethyl-2,2′-bipyridine.

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

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.Ding, Chun-Yun; Shao, Jiang-Yang; Gong, Zhong-Liang; Zhong, Yu-Wu; Yao, Jiannian researched the compound: 5,5′-Dimethyl-2,2′-bipyridine( cas:1762-34-1 ).Synthetic Route of C12H12N2.They published the article 《Molecular engineering towards tunable morphology of metal-organic complex microcrystals for efficient and multicolor electrochemiluminescence》 about this compound( cas:1762-34-1 ) in Journal of Materials Chemistry C: Materials for Optical and Electronic Devices. Keywords: mol engineering towards tunable morphol metal organic complex microcrystals; multicolor electrochemiluminescence. We’ll tell you more about this compound (cas:1762-34-1).

Electrochemiluminescence (ECL) of crystalline materials has recently attracted increasing attention due to their unique characteristics and applications, such as crystallization-induced emission, active waveguiding, and biosensing. Tris(2,2′-bipyridine)ruthenium(II), [Ru(bpy)3]2+, a classical metal-organic complex for ECL studies, has been fully investigated in solution as well as its derivatives However, the dependence of ECL properties on the mol. structure and crystal morphol. of these complexes has not been illustrated, partially due to the difficulty in the controlled crystal growth. Here, we adopt a facile mol. engineering strategy to obtain microcrystals of [Ru(bpy)3]2+ derivatives with well-defined morphol. (rods, wires, or polyhedrons) and varied phosphorescence emission colors (yellow, orange, and red) by simply changing the position and number of Me substituents on the bipyridine ligands. The packing modes of mols. influenced by Me groups play a vital role in crystal growth based on attachment energy anal. The obtained microcrystals could act as ECL luminophores when modified on glassy carbon electrode surfaces. Those with one-dimensional (1D) morphol. generally show superior ECL efficiency and stability to three-dimensional (3D) shaped microcrystals. ECL biosensors made of stable 1D microcrystals show reliable and sensitive responses to hydroxyproline, demonstrating their capacity in recyclable detections. This work demonstrates the great potential of mol. engineering in controlling the morphol., emission colors, and ECL properties of mol. crystals, paving the way for the development of high-performance ECL biosensing and optoelectronic devices.

This literature about this compound(1762-34-1)Synthetic Route of C12H12N2has given us a lot of inspiration, and I hope that the research on this compound(5,5′-Dimethyl-2,2′-bipyridine) can be further advanced. Maybe we can get more compounds in a similar way.

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.Duan, Jicheng; Wang, Ke; Xu, Guang-Li; Kang, Shaolin; Qi, Liangliang; Liu, Xue-Yuan; Shu, Xing-Zhong researched the compound: 5,5′-Dimethyl-2,2′-bipyridine( cas:1762-34-1 ).Formula: C12H12N2.They published the article 《Cross-Electrophile C(sp2)-Si Coupling of Vinyl Chlorosilanes》 about this compound( cas:1762-34-1 ) in Angewandte Chemie, International Edition. Keywords: cross electrophile coupling vinyl chloro silane carbon silicon bond; cross-coupling; nickel; organosilanes; reductive coupling; vinylsilanes. We’ll tell you more about this compound (cas:1762-34-1).

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.

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