Category: 2510-22-7

In 2022,Hupfer, Maximilian L.; Ghosh, Soumik; Wang, Yingchun; Opsomer, Tomas; Mayerhofer, Thomas G.; Dehaen, Wim; Presselt, Martin published an article in Advanced Materials Interfaces. The title of the article was 《Dichroic Dipole Antenna Membranes from Aligned Linear BOPHY Dyes》.SDS of cas: 2510-22-7 The author mentioned the following in the article:

Linear dyes are mol. mimics of dipole antennas that receive UV-vis light. In this work the assembly of linear dyes via the Langmuir technique to achieve uniform dye alignment for optically anisotropic mol. dipole antenna arrays is presented. The mol. orientations in these arrays are quantified from Langmuir isotherms, topog. data, and from polarization- and angle-dependent UV-vis transmission spectra. It is achieved the smallest angles by which the transition dipole moment orientation deviates from vertical alignment (16°-30°) in the antenna arrays that have been reported in literature so far. The resulting maximum absorption contrast between grazing and vertical incidence amounts to 75%. This high optical anisotropy enables application as anisotropic receiver arrays in optical communication, as optical layers for privacy applications, or other applications building on dichroic dye layers. In the part of experimental materials, we found many familiar compounds, such as 4-Ethynylpyridine(cas: 2510-22-7SDS of cas: 2510-22-7)

4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. Pyridine is very deactivated towards electrophilic substitution with respect to benzene. For this reason classical formylation, using methods such as the Gattermann or Vilsmeier reactions, are not generally successful. SDS of cas: 2510-22-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Reference of 4-EthynylpyridineIn 2021 ,《Modular Synthesis of trans-A2B2-Porphyrins with Terminal Esters: Systematically Extending the Scope of Linear Linkers for Porphyrin-Based MOFs》 appeared in Chemistry – A European Journal. The author of the article were Marschner, Stefan M.; Haldar, Ritesh; Fuhr, Olaf; Woell, Christof; Braese, Stefan. The article conveys some information:

Differently functionalized porphyrin linkers represent the key compounds for the syntheses of new porphyrin-based metal-organic frameworks (MOFs), which have gathered great interest within the last two decades. Herein we report the synthesis of a large range of 5,15-bis(4-ethoxycarbonylphenyl)porphyrin derivatives, through Suzuki and Sonogashira cross-coupling reactions of an easily accessible corresponding meso-dibrominated trans-A2B2-porphyrin with com. available boronic acids or terminal alkynes. The resulting porphyrins were fully characterized through NMR, MS, and IR spectroscopy and systematically investigated through UV/Vis absorption. Finally, selected structures were saponified to the corresponding carboxylic acids and subsequently proven to be suitable for the synthesis of surface-anchored MOF thin films. In the experiment, the researchers used many compounds, for example, 4-Ethynylpyridine(cas: 2510-22-7Reference of 4-Ethynylpyridine)

4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. Pyridine derivatives lend themselves to many roles in the spirited field of supramolecular chemistry – whether as the ligand backbone of metal-organic polymers or presiding over the key electronic stations of nanodevices. In biochemistry, pyridine-containing cofactors are necessary nutrients on which our lives depend. Reference of 4-Ethynylpyridine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Ishaq, Muhammad Waqas; Nawaz, Raziq; Jalil, Abdul; Hashmi, Muhammad Ali; Zheng, Tao; Li, Lianwei published their research in Journal of Molecular Structure in 2021. The article was titled 《Ligand Exchange Reaction in [Co4O4]-Cobalt Cubane: A Versatile Strategy Towards the Preparation of Cobalt Cubane-based Functional Small Molecules and Polymeric Materials》.SDS of cas: 2510-22-7 The article contains the following contents:

Herein, we report the mechanistic and application study of ligand exchange reaction in Co4O4-cobalt cubane, a well-known water oxidation catalyst (WOC). The ligand exchange reaction involves the instantaneous dissociation of attached pyridine ligand and replacement of target ligand in an appropriate solvent. The kinetic and thermodn. parameters were quantified for the ligand exchange reaction under mild conditions. Activation parameters revealed that the ligand exchange mechanism follows dissociative (D) or interchange-dissociative (Id) pathway in case of Co4O4, as it is evident by the high activation enthalpy (ΔH+) and the pos. activation entropy (ΔS+) values. The effects of ligand derivatization, reaction temperature and type of the solvent on the exchange kinetics and the product purity were also investigated in detail. Furthermore, our theor. studies disclosed the most probable ligand exchange pathway in case of Co4O4. Finally, this methodol. was successfully applied to the preparation of Co4O4-containning functional poly-4vinylpyridine (P4VP) and cross-linked heterogeneous polymeric catalysts. The present mechanistic study clearly demonstrates that the ligand exchange method is an efficient and versatile method for the preparation of Co4O4-based functional materials. In the experimental materials used by the author, we found 4-Ethynylpyridine(cas: 2510-22-7SDS of cas: 2510-22-7)

4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. Pyridines are often used as catalysts or reagents; particular notice has been paid recently to how pyridine coordinates to metal centers enabling a wide range of valuable reactions. SDS of cas: 2510-22-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Jia, Pei-Pei; Xu, Lin; Hu, Yi-Xiong; Li, Wei-Jian; Wang, Xu-Qing; Ling, Qing-Hui; Shi, Xueliang; Yin, Guang-Qiang; Li, Xiaopeng; Sun, Haitao; Jiang, Yanrong; Yang, Hai-Bo published an article in 2021. The article was titled 《Orthogonal Self-Assembly of a Two-Step Fluorescence-Resonance Energy Transfer System with Improved Photosensitization Efficiency and Photooxidation Activity》, and you may find the article in Journal of the American Chemical Society.Recommanded Product: 4-Ethynylpyridine The information in the text is summarized as follows:

During the past few decades, fabrication of multistep fluorescence-resonance energy transfer (FRET) systems has become one of the most attractive topics within supramol. chem., chem. biol., and materials science. However, it is challenging to efficiently prepare multistep FRET systems with precise control of the distances between locations and the numbers of fluorophores. Herein we present the successful fabrication of a two-step FRET system bearing specific numbers of anthracene, coumarin, and BODIPY moieties at precise distances and locations through an efficient and controllable orthogonal self-assembly approach based on metal-ligand coordination and host-guest interactions. Notably, the photosensitization efficiency and photooxidation activity of the two-step FRET system gradually increased with the number of energy transfer steps. For example, the two-step FRET system exhibited 1.5-fold higher 1O2 generation efficiency and 1.2-fold higher photooxidation activity than that of its corresponding one-step FRET system. This research not only provides the first successful example of the efficient preparation of multistep FRET systems through orthogonal self-assembly involving coordination and host-guest interactions but also pushes multistep FRET systems toward the application of photosensitized oxidation of a sulfur mustard simulant. The experimental process involved the reaction of 4-Ethynylpyridine(cas: 2510-22-7Recommanded Product: 4-Ethynylpyridine)

4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. Pyridine is very deactivated towards electrophilic substitution with respect to benzene. For this reason classical formylation, using methods such as the Gattermann or Vilsmeier reactions, are not generally successful. Recommanded Product: 4-Ethynylpyridine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Category: pyridine-derivativesIn 2020 ,《The Covalent and Coordination Co-Driven Assembly of Supramolecular Octahedral Cages with Controllable Degree of Distortion》 appeared in Journal of the American Chemical Society. The author of the article were Bao, Shu-Jin; Xu, Ze-Ming; Ju, Yun; Song, Ying-Lin; Wang, Heng; Niu, Zheng; Li, Xiaopeng; Braunstein, Pierre; Lang, Jian-Ping. The article conveys some information:

Discovering and constructing novel and fancy structures is the goal of many supramol. chemists. In this work, authors propose an assembly strategy based on the synergistic effect of coordination and covalent interactions to construct a set of octahedral supramol. cages and adjust their degree of distortion. Their strategy innovatively utilizes the addition of sulfur atoms of a metal sulfide synthon, [Et4N][Tp*WS3] (A), to an alkynyl group of a pyridine-containing linker, resulting in a novel vertex with low symmetry, and of Cu(I) ions. By adjusting the length of the linker and the position of the reactive alkynyl group, the control of the deformation degree of the octahedral cages can be realized. These supramol. cages exhibit enhanced third-order nonlinear optical (NLO) responses. The results offer a powerful strategy to construct novel distorted cage structures as well as control the degree of distortion of supramol. geometries. In the experiment, the researchers used 4-Ethynylpyridine(cas: 2510-22-7Category: pyridine-derivatives)

4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. The basicity and metallophilic high donor number of these π-deficient systems has long favored them as ligands in metal catalysis. The last decade saw pyridine assume a stronger role as functional group for directed C–H oxidation/activation.Category: pyridine-derivatives

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Yin, Chengyang; Liu, Shuang; Qin, Zhaoxian; Zhang, Yifei; Li, Gao; Zhao, Zhen published their research in European Journal of Inorganic Chemistry in 2021. The article was titled 《Butterfly-Like Tetranuclear Copper(I) Clusters for Efficient Alkyne Homocoupling Reactions》.Application of 2510-22-7 The article contains the following contents:

In this work, we here prepare a new tetranuclear CuI cluster with a precise configuration of Cu4(PPh3)4(bis(prop-2-ynyloxy)biphenyl)2. X-ray single-crystal diffraction shows that the bi-alkynyl ligands bind to two Cu atoms via a σ-bond and to the other two Cu atoms via a π-bond configuration, presenting a new alkynyl-Cu motif and a butterfly-like framework. Cu4(PPh3)4L2 clusters exhibit photoluminescence property at 410 and 505 nm. Cu4(PPh3)4L2 clusters also give good performances in the alkyne homocoupling reactions after its immobilization on different oxides. The copper(I) species is proved to be the catalytic active site during the homocoupling reactions. And the basic property of the oxides (e. g. NiO) can promote the coupling catalysis, and a side-group effect of the alkyne reactants is distinctly observed In all, this study extends the catalytic application of the copper clusters to the carbon-carbon coupling reactions and gives some cue to develop the potential exploitation of copper clusters in other organic transformations. In addition to this study using 4-Ethynylpyridine, there are many other studies that have used 4-Ethynylpyridine(cas: 2510-22-7Application of 2510-22-7) was used in this study.

4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. Pyridines are often used as catalysts or reagents; particular notice has been paid recently to how pyridine coordinates to metal centers enabling a wide range of valuable reactions. Application of 2510-22-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Matern, Jonas; Baeumer, Nils; Fernandez, Gustavo published an article in 2021. The article was titled 《Unraveling Halogen Effects in Supramolecular Polymerization》, and you may find the article in Journal of the American Chemical Society.SDS of cas: 2510-22-7 The information in the text is summarized as follows:

Halogens play a crucial role in numerous natural processes and synthetic materials due to their unique physicochem. properties and the diverse interactions they can engage in. In the field of supramol. polymerization, however, halogen effects remain poorly understood, and investigations were restricted to halogen bonding or the inclusion of polyfluorinated side groups. Recent contributions from our group revealed that chlorine ligands greatly influence mol. packing and pathway complexity phenomena of various metal complexes. These results prompted us to explore the role of the halogen nature on supramol. polymerization, a phenomenon that remained unexplored to date. To address this issue, the authors designed a series of archetypal bispyridyldihalogen PtII complexes bearing chlorine (1), bromine (2), or iodine (3) and systematically compared their supramol. polymerization in nonpolar media using various exptl. methods and theory. The studies reveal a remarkably different supramol. polymerization for the three compounds, which can undergo two competing pathways with either slipped (kinetic) or parallel (thermodn.) mol. packing. The halogen exerts an inverse effect on the energetic levels of the two self-assembled states, resulting in a single thermodn. pathway for 3, a transient kinetic species for 2, and a hidden thermodn. state for 1. This seesaw-like bias of the energy landscape can be traced back to the involvement of the halogens in weak N-H···X hydrogen-bonding interactions in the kinetic pathway, whereas in the thermodn. pathway the halogens are not engaged in the stabilizing interaction motif but rather amplify solvophobic effects. After reading the article, we found that the author used 4-Ethynylpyridine(cas: 2510-22-7SDS of cas: 2510-22-7)

4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. Pyridine derivatives lend themselves to many roles in the spirited field of supramolecular chemistry – whether as the ligand backbone of metal-organic polymers or presiding over the key electronic stations of nanodevices. In biochemistry, pyridine-containing cofactors are necessary nutrients on which our lives depend. SDS of cas: 2510-22-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Formula: C7H5NIn 2020 ,《Double Rotors with Fluxional Axles: Domino Rotation and Azide-Alkyne Huisgen Cycloaddition Catalysis》 appeared in Angewandte Chemie, International Edition. The author of the article were Goswami, Abir; Schmittel, Michael. The article conveys some information:

The simple preparation of the multicomponent devices [Cu4(A)2]4+ and [Cu2(A)(B)]2+, both rotors with fluxional axles undergoing domino rotation, highlights the potential of self-sorting. The concept of domino rotation requires the interconversion of axle and rotator, allowing the spatiotemporal decoupling of two degenerate exchange processes in [Cu4(A)2]4+ occurring at 142 kHz. Addition of two equiv of B to rotor [Cu4(A)2]4+ afforded the heteromeric two-axle rotor [Cu2(A)(B)]2+ with two distinct exchange processes (64.0 kHz and 0.55 Hz). The motion requiring a pyridine→zinc porphyrin bond cleavage is 1.2 × 105 times faster than that operating via a terpyridine→[Cu(phenAr2)]+ rupture. Finally, both rotors are catalysts due to their copper(I) content. The fast domino rotor (142 kHz) was shown to suppress product inhibition in the catalysis of the azide-alkyne Huisgen cycloaddition The experimental part of the paper was very detailed, including the reaction process of 4-Ethynylpyridine(cas: 2510-22-7Formula: C7H5N)

4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. The basicity and metallophilic high donor number of these π-deficient systems has long favored them as ligands in metal catalysis. The last decade saw pyridine assume a stronger role as functional group for directed C–H oxidation/activation.Formula: C7H5N

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Related Products of 2510-22-7In 2022 ,《Potent and Selective RIPK1 Inhibitors Targeting Dual-Pockets for the Treatment of Systemic Inflammatory Response Syndrome and Sepsis》 was published in Angewandte Chemie, International Edition. The article was written by Yang, Xiangbo; Lu, Huimin; Xie, Hang; Zhang, Binbin; Nie, Tianqing; Fan, Chen; Yang, Tao; Xu, Yechun; Su, Haixia; Tang, Wei; Zhou, Bing. The article contains the following contents:

Sepsis, characterized with high risk of life-threatening organ dysfunction, represents a major cause of health loss and the World Health Organization (WHO) labeled sepsis as the most urgent unmet medical need in 2017. The emerging biol. understanding of the role of RIPK1 in sepsis has opened up an exciting opportunity to explore potent and selective RIPK1 inhibitors as an effective therapeutic strategy for SIRS and sepsis therapy. Herein, we have synthesized a class of highly potent dual-mode RIPK1 inhibitors occupying both the allosteric and the ATP binding pockets, exemplified by compound 21 (ZB-R-55) which is about 10-fold more potent than GSK2982772, and exhibits excellent kinase selectivity, good oral pharmacokinetics and good therapeutic effects in the LPS-induced sepsis model, suggesting that compound ZB-R-55 is a highly promising preclin. candidate. The results came from multiple reactions, including the reaction of 4-Ethynylpyridine(cas: 2510-22-7Related Products of 2510-22-7)

4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. Pyridines, quinolines, and isoquinolines have found a function in almost all aspects of organic chemistry. Pyridine has found use as a solvent, base, ligand, functional group, and molecular scaffold. As structural elements, these moieties are potent electron-deficient groups, metal-directing functionalities, fluorophores, and medicinally important pharmacophores. Related Products of 2510-22-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Reference of 4-EthynylpyridineIn 2022 ,《Expanding the Scope of Metastable Species in Hydrogen Bonding-Directed Supramolecular Polymerization》 was published in Angewandte Chemie, International Edition. The article was written by Matern, Jonas; Fernandez, Zulema; Baumer, Nils; Fernandez, Gustavo. The article contains the following contents:

We reveal unique hydrogen (H-) bonding patterns and exploit them to control the kinetics, pathways and length of supramol. polymers (SPs). New bisamide-containing monomers were designed to elucidate the role of competing intra- vs. intermol. H-bonding interactions on the kinetics of supramol. polymerization (SP). Remarkably, two polymerization-inactive metastable states were discovered. Contrary to previous examples, the commonly assumed intramolecularly H-bonded monomer does not evolve into intermolecularly H-bonded SPs via ring opening, but rather forms a metastable dimer. In this dimer, all H-bonding sites are saturated, either intra- or intermolecularly, hampering elongation. The dimers exhibit an advantageous preorganization, which upon opening of the intramol. portion of the H-bonding motif facilitates SP in a consecutive process. The retardation of spontaneous self-assembly as a result of two metastable states enables length control in SP by seed-mediated growth. In the experimental materials used by the author, we found 4-Ethynylpyridine(cas: 2510-22-7Reference of 4-Ethynylpyridine)

4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. Pyridines, quinolines, and isoquinolines have found a function in almost all aspects of organic chemistry. Pyridine has found use as a solvent, base, ligand, functional group, and molecular scaffold. As structural elements, these moieties are potent electron-deficient groups, metal-directing functionalities, fluorophores, and medicinally important pharmacophores. Reference of 4-Ethynylpyridine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem