Category: 2510-22-7

《Catalyst-free and solvent-free hydroboration of alkynes》 was written by Jaladi, Ashok Kumar; Choi, Hyeon Seong; An, Duk Keun. Name: 4-Ethynylpyridine And the article was included in New Journal of Chemistry in 2020. The article conveys some information:

The hydroboration of alkynes with pinacolborane (HBpin) under catalyst- and solvent-free conditions was demonstrated. Various alkynes were smoothly converted into alkenyl boronate esters in good to excellent yields at 110°C. The gram-scale hydroboration of alkynes provided the corresponding boronates, which were further utilized for various chem. transformations and coupling reactions. In the experimental materials used by the author, we found 4-Ethynylpyridine(cas: 2510-22-7Name: 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. Name: 4-Ethynylpyridine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

《Construction of visible-light-responsive metal-organic framework with pillared structure for dye degradation and Cr(VI) reduction》 was written by Guo, Zhifen; Zhao, Hongmei; Liu, Xin; Liang, Xiao; Wei, Hongxia; Mei, Yingchun; Xing, Hongzhu. Recommanded Product: 4-Ethynylpyridine And the article was included in Applied Organometallic Chemistry in 2020. The article conveys some information:

A water-stable mixed-linker metal-organic framework (MOF) was rationally synthesized using a controllable pillared-layer method. The prepared Co(II)-MOF shows wide-range absorption in the visible light region due to the incorporation of highly conjugated anthracene-based bipyridine ligand. Experiments suggest that the MOF is highly efficient for the photoreduction of toxic Cr(VI) ions in water under visible light. Important issues affecting photocatalytic performance, such as the influence of pH and the control of electron-hole separation by scavenger, were carefully examined Beyond Cr(VI) ions, we also explored the photocatalytic degradation performance of the MOF using a persistent azo dye as a model substrate, where H2O2-involved advanced oxidation process was applied. Control experiments suggest that the introduction of environmentally benign H2O2 significantly enhances the degradation performance due to the generation of reactive hydroxyl radicals. The study not only demonstrates the great feasibility of the preparation of a new MOF photocatalyst through a controllable pillared-layer method, but also reveals that rational functionalization of ligand in the MOF is convenient for achieving desirable applications. The experimental part of the paper was very detailed, including the reaction process of 4-Ethynylpyridine(cas: 2510-22-7Recommanded Product: 4-Ethynylpyridine)

4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. Pyridine is a relatively complex molecule and exhibits a number of different bands in IR spectra. Among others, the bands characterizing the ν8a and ν19b modes have been found to be sensitive to the coordination or protonation of the molecule. Note that the band that is diagnostic for the PyH+ ion at about 1545 cm− 1 (ν19b mode) does not overlap with any of the other bands.Recommanded Product: 4-Ethynylpyridine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Chang, Xingmao; Wang, Zhaolong; Wang, Gang; Liu, Taihong; Lin, Simin; Fang, Yu published an article in 2021. The article was titled 《Perylene Bisimide-Cored Supramolecular Coordination Complexes: Interplay between Ensembles, Excited State Processes, and Aggregation Behaviors》, and you may find the article in Chemistry – A European Journal.Product Details of 2510-22-7 The information in the text is summarized as follows:

Manipulating the optical properties of fluorescent species is challenging owing to complicated and tedious synthetic works. Herein, the photophys. properties of perylene bisimide (PBI) were effectively tuned by varying the geometrical arrangement of PBI moieties within supramol. coordination complexes (SCCs), where a PBI-based dicycle (2) and a trigonal prism (3) were generated via using a typical 90° Pt(II) reagent, cis-(PEt3)2Pt(OTf)2-based coordination-driven self-assembly approach. The ligand, an ortho-tetrapyridiyl-PBI (1), exhibits a moderate fluorescence quantum yield (∼13%) and efficient inter-system crossing (ISC). 2, however, is much more emissive with a fluorescence quantum yield of ∼41%, and the relevant ISC process is significantly hindered. The fluorescence quantum yield of 3 is merely ∼6% due to the observed symmetry-breaking charge separation (SB-CS), which turns to triplet state upon charge recombination. Interestingly, 3 could be fully transformed into 2 by simply adding a suitable amount of a 90° Pt(II)-based neutral triangle. Moreover, 2 tends to form discrete dimers both in crystal and solution states, but 3 does not show the property. Therefore, controlling geometrical arrangement of fluorophores through coordination-driven self-assembly could be taken as another effective way to tune their excited state relaxation pathways and construct high-performance optical mol. materials, which generally have to be prepared via organic synthesis. In the experiment, the researchers used 4-Ethynylpyridine(cas: 2510-22-7Product Details of 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. Product Details of 2510-22-7

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Sitte, Elisabeth; Twamley, Brendan; Grover, Nitika; Senge, Mathias O. published an article in 2021. The article was titled 《Investigation of the Reactivity of 1-Azido-3-iodobicyclo[1.1.1]pentane under “”Click”” Reaction Conditions》, and you may find the article in Journal of Organic Chemistry.Recommanded Product: 4-Ethynylpyridine The information in the text is summarized as follows:

The bicyclo[1.1.1]pentane (BCP) unit is under scrutiny as a bioisostere in drug mols. We employed methodologies for the synthesis of different BCP triazole building blocks from one precursor, 1-azido-3-iodobicyclo[1.1.1]pentane, by “”click”” reactions and integrated cycloaddition-Sonogashira coupling reactions. Thereby, we accessed 1,4-disubstituted triazoles such as I (R = 1-pyrenyl, Ph, 4-pyridinyl; R1 = H), 5-iodo-1,4,5-trisubstituted triazoles such as I (R = 1-pyrenyl, Ph, 4-pyridinyl; R1 = I), and 5-alkynylated 1,4,5-trisubstituted triazoles such as I (R = 1-pyrenyl, Ph, 4-pyridinyl; R1 = RCC). This gives entry to the synthesis of multiply substituted BCP triazoles on either a modular or a one-pot basis. These methodologies were further utilized for appending porphyrin moieties onto the BCP core. In the experiment, the researchers used 4-Ethynylpyridine(cas: 2510-22-7Recommanded Product: 4-Ethynylpyridine)

4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. Pyridine is a relatively complex molecule and exhibits a number of different bands in IR spectra. Among others, the bands characterizing the ν8a and ν19b modes have been found to be sensitive to the coordination or protonation of the molecule. Note that the band that is diagnostic for the PyH+ ion at about 1545 cm− 1 (ν19b mode) does not overlap with any of the other bands.Recommanded Product: 4-Ethynylpyridine

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Zhang, Yongsheng; Wang, Jincheng; Yang, Zhenjiao; Zhang, Zeng; He, Xiaoyan; Chen, Guoliang; Huang, Gang; Lu, Xiuhong published their research in Journal of Organic Chemistry in 2021. The article was titled 《Hydrazine Hydrate Accelerates Neocuproine-Copper Complex Generation and Utilization in Alkyne Reduction, a Significant Supplement Method for Catalytic Hydrogenation》.Computed Properties of C7H5N The article contains the following contents:

An in situ neocuproine-copper complex formation method was reported. The redox potential of this complex enable it can serve as an ideal redox catalyst in the synthesis of diimine by oxidation of hydrazine hydrate and this technique was successfully applied in the reduction of alkynes. This reduction method displayed a broad functional group tolerance and substrate adaptability as well as the advantages of safety and high efficiency. Especially, nitro, benzyl, boc and sulfur containing alkynes can be reduced to the corresponding alkanes directly, which provides a useful complementary method to traditional catalytic hydrogenation. Besides, this method was applied in the preparation of the Alzheimer’s disease drug CT-1812 and studied the mechanism.4-Ethynylpyridine(cas: 2510-22-7Computed Properties of C7H5N) was used in this study.

4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. In industry and in the lab, pyridine is used as a reaction solvent, particularly when its basicity is useful, and as a starting material for synthesizing some herbicides, fungicides, and antiseptics.Computed Properties of C7H5N

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

《Fluorescent donor-acceptor psoralen cruciforms by consecutive Suzuki-Suzuki and Sonogashira-Sonogashira one-pot syntheses》 was written by Geenen, Sarah R.; Schumann, Torben; Mueller, Thomas J. J.. Recommanded Product: 4-Ethynylpyridine And the article was included in Journal of Organic Chemistry in 2020. The article conveys some information:

Two novel donor-acceptor cruciform topologies are efficiently synthesized by site-selective Suzuki-Suzuki and Sonogashira-Sonogashira multicomponent reactions starting from a bromo-triflato-functionalized psoralen scaffold. In addition to tunability of photophys. properties, such as absorption and emission, many derivatives possess partially high relative fluorescence quantum yields in solution and fluoresce strongly in the solid state. Addnl., the promising compounds show solvatochromism and acidochromic effects. In addition, 8-p-anisyl-5-p-cyanophenyl-substituted psoralen exhibits aggregation-induced emission properties. Exptl. (applying the Lippert-Mataga model) and computationally (TD-DFT calculations), the pronounced charge transfer character of the longest wavelength absorption band was confirmed. In the experiment, the researchers used 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

Formula: C7H5NIn 2020 ,《Preparation, Photophysical and Electrochemical Evaluation of an Azaborondipyrromethene/Zinc Porphyrin/Graphene Supramolecular Nanoensemble》 was published in Chemistry – A European Journal. The article was written by Rotas, Georgios; Thomas, Michael B.; Canton-Vitoria, Ruben; D’Souza, Francis; Tagmatarchis, Nikos. The article contains the following contents:

The preparation of an entirely supramol., multichromophoric azaborondipyrromethene (ABDP)/zinc tetraphenylporphyrin (ZnTPP)/exfoliated graphene (GR) nanoensemble was accomplished. The ABDP derivative bears glycol chains for enhancing solubility and a pyridine functionality for allowing coordination with ZnTPP. The ABDP/ZnTPP/GR nanoensemble was characterized in terms of morphol. and composition by using complementary microscopy imaging, thermogravimetric anal., Raman as well as steady-state and time-resolved absorption and emission spectroscopy. The photophys. and electrochem. assessment of ABDP/ZnTPP/GR as well as the binding properties of the ABDP/ZnTPP complex, employed as a reference, are presented. Energy and electron transfer events were observed in ABDP/ZnTPP upon photoexcitation. However, in the case of ABDP/ZnTPP/GR, the graphene-induced aggregation of the chromophores alters their electronic interactions, enhancing the energy/electron transfer process between them. In the experimental materials used by the author, we found 4-Ethynylpyridine(cas: 2510-22-7Formula: C7H5N)

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. Formula: C7H5N

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

The author of 《Visible-Light-Induced Tandem Cyclization of Alkynoates and Phenylacetylenes to Naphtho[2,1-c]coumarins》 were Wang, Zhihui; Wang, Lei; Wang, Zhiming; Li, Pinhua. And the article was published in Asian Journal of Organic Chemistry in 2019. SDS of cas: 2510-22-7 The author mentioned the following in the article:

An efficient visible-light-induced tandem cyclization of alkynoates and phenylacetylenes to naphtho[2,1-c]coumarins was developed. The reaction could be carried out at room temperature under an air atm. in one pot. Preliminary mechanistic investigations indicated that the present reaction was involved in a free-radical process. The results came from multiple reactions, including the reaction of 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

《Electronic Finetuning of 8-Methoxy Psoralens by Palladium-Catalyzed Coupling: Acidochromicity and Solvatochromicity》 was written by Geenen, Sarah R.; Presser, Lysander; Hoelzel, Torsten; Ganter, Christian; Mueller, Thomas J. J.. Formula: C7H5N And the article was included in Chemistry – A European Journal in 2020. The article conveys some information:

Differently 5-substituted 8-methoxypsoralens can be synthesized by an efficient synthetic route with various cross-coupling methodologies, such as Suzuki, Sonogashira and Heck reaction. Compared to previously synthesized psoralens, thereby promising daylight absorbing compounds as potentially active agents against certain skin diseases can be readily accessed. Extensive investigations of all synthesized psoralen derivatives reveal fluorescence in the solid state as well as several distinctly emissive derivatives in solution Donor-substituted psoralens exhibit remarkable photophys. properties, such as high fluorescence quantum yields and pronounced emission solvatochromicity and acidochromicity, which were scrutinized by Lippert-Mataga and Stern-Volmer plots. The results indicate that the compounds exceed the limit of visible light, a significant factor for potential applications as an active agent. In addition, (TD)DFT calculations were performed to elucidate the underlying electronic structure and to assign exptl. obtained data. In the experiment, the researchers used many compounds, for example, 4-Ethynylpyridine(cas: 2510-22-7Formula: C7H5N)

4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. Pyridine is a relatively complex molecule and exhibits a number of different bands in IR spectra. Among others, the bands characterizing the ν8a and ν19b modes have been found to be sensitive to the coordination or protonation of the molecule. Note that the band that is diagnostic for the PyH+ ion at about 1545 cm− 1 (ν19b mode) does not overlap with any of the other bands.Formula: C7H5N

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

The author of 《Visible-Light-Induced Tandem Cyclization of Alkynoates and Phenylacetylenes to Naphtho[2,1-c]coumarins》 were Wang, Zhihui; Wang, Lei; Wang, Zhiming; Li, Pinhua. And the article was published in Asian Journal of Organic Chemistry in 2019. SDS of cas: 2510-22-7 The author mentioned the following in the article:

An efficient visible-light-induced tandem cyclization of alkynoates and phenylacetylenes to naphtho[2,1-c]coumarins was developed. The reaction could be carried out at room temperature under an air atm. in one pot. Preliminary mechanistic investigations indicated that the present reaction was involved in a free-radical process. The results came from multiple reactions, including the reaction of 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