Tag: 100-200

Selective CO₂ Reduction to Ethylene Using Imidazolium-Functionalized Copper was written by Cheng, Banggui;Du, Jiehao;Yuan, Huiqing;Tao, Yuan;Chen, Ya;Lei, Jingxiang;Han, Zhiji. And the article was included in ACS Applied Materials & Interfaces in 2022.Reference of 21252-69-7 This article mentions the following:

Electrochem. CO₂ reduction is a promising approach to obtain sustainable chems. in energy conversion. Improving the selectivity of CO₂ reduction toward a particular C₂ product such as ethylene remains a significant challenge. Herein, we report a series of imidazolium hexafluorophosphate compounds as surface modifiers for planar Cu foils to boost the Faradaic efficiency (FE) of ethylene from 5 to 73%, which is among the highest reported using polycrystalline Cu. The modified electrodes are convenient to prepare The structure-function study demonstrates that varying the alkyl or aromatic substituents on the imidazolium nitrogen atoms has significant effects on the morphol. of the deposited films and the product selectivity of CO₂ reduction Exptl. FE_Câ‰?, FE_C2H4, ln(FE_Câ‰?/FE_CH4), and ln(FE_C2H4/FE_C2H5OH) values show generally linear relationships with FE_H2 while using different imidazolium modifiers, suggesting that factors governing proton reduction may also be directly related to both overall C_â‰? generation and ethylene selectivity. This work presents an effective and practical way in tailoring the active sites of metallic surface for selective CO₂ reduction In the experiment, the researchers used many compounds, for example, 1-Octyl-1H-imidazole (cas: 21252-69-7Reference of 21252-69-7).

1-Octyl-1H-imidazole (cas: 21252-69-7) belongs to imidazole derivatives. The solubility of imidazoles in ethers is lower than that in alcohols and decreases with increasing chain length of the ethers . In contrast, the solubility of benzimidazoles in alcohols (C3–C6) is higher than in water and generally decreases with a Imidazole also acts as a microtubule destabilizing agents and inhibits topoisomerase and Cytochrome P450 Family 26 Subfamily A Member 1 (CYP26A1) enzymes.Reference of 21252-69-7

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Semi-heterogeneous photo-Cu-dual-catalytic cross-coupling reactions using polymeric carbon nitrides was written by Zhang, Zhaofei;Xu, Yangsen;Zhang, Qitao;Fang, Shaofan;Sun, Hongli;Ou, Wei;Su, Chenliang. And the article was included in Science Bulletin in 2022.Safety of 1-Methylbenzimidazole This article mentions the following:

A merger of copper catalysis and semiconductor photocatalysis using polymeric carbon nitride (PCN) for multi-type cross-coupling reactions was developed. This dual catalytic system enables mild C-H arylation, chalcogenation, and C-N cross-coupling reactions under visible light irradiation with a broad substrate scope. Good to excellent yields were obtained with appreciable site selectivity and functional group tolerance. Metal-free and low-cost PCN photocatalyst can easily be recovered and reused several times. In the experiment, the researchers used many compounds, for example, 1-Methylbenzimidazole (cas: 1632-83-3Safety of 1-Methylbenzimidazole).

1-Methylbenzimidazole (cas: 1632-83-3) belongs to imidazole derivatives. 1H-imidazole is an imidazole tautomer which has the migrating hydrogen at position 1. It is a conjugate base of an imidazolium cation. It is a conjugate acid of an imidazolide. It is a tautomer of a 4H-imidazole. Imidazole based anticancer drug find applications in cancer chemotherapy. It is used as buffer component for purification of the histidine tagged recombinant proteins in immobilized metal-affinity chromatography (IMAC).Safety of 1-Methylbenzimidazole

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Synthesis of new ionic liquids based on dicationic imidazolium and their anti-corrosion performances was written by Zaky, M. T.;Nessim, M. I.;Deyab, M. A.. And the article was included in Journal of Molecular Liquids in 2019.Synthetic Route of C11H20N2 This article mentions the following:

Ionic liquids with high environmental value and adsorption properties are a requirement for the new trend for corrosion inhibitors. Here, we synthesis three new ionic liquids based on dicationic imidazolium (IL1, IL2 and IL3) to produce green inhibitors for stainless steel corrosion in acidic environment. The anionic portion of all prepared ionic liquids is BF-4. New ionic liquids were recognized by means of element inspection, FT-IR, TGA and 1H NMR spectroscopy. All prepared ionic liquids work as good corrosion inhibitors. Where their efficiencies are 91.5%, 98.4% and 83.3% for IL1, IL2 and IL3, resp. at 100 ppm. The counter portion of ILs (BF-4) has a great role in the adsorption process. In the experiment, the researchers used many compounds, for example, 1-Octyl-1H-imidazole (cas: 21252-69-7Synthetic Route of C11H20N2).

1-Octyl-1H-imidazole (cas: 21252-69-7) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. Imidazole is incorporated into many important biological compounds. The most pervasive is the amino acid histidine, which has an imidazole side-chain. Histidine is present in many proteins and enzymes, e.g. by binding metal cofactors, as seen in hemoglobin.Synthetic Route of C11H20N2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Polybenzimidazoles based on methylated benzene tetraamines was written by Korshak, V. V.;Teplyakov, M. M.;Fedorova, R. D.. And the article was included in Vysokomolekulyarnye Soedineniya, Seriya B: Kratkie Soobshcheniya in 1967.Product Details of 4887-83-6 This article mentions the following:

3,3′-Diaminotolidine (I) and 2,3′,4,4′-tetraaminoditolylmethane (II) were synthesized and were used to prepare polybenzimidazoles with di-Ph isophthalate (III), di-Ph terephthalate (IV), di-Ph adipate (V), and di-Ph sebacate (VI). The polybenzimidazoles obtained had the following properties (amine, ester, intrinsic viscosity in HCO2H, and decomposition temperature given): I, V, 0.76, -; I, VI, 0.80, -; I, III, 0.40, 490°; I, IV, 0.42, 500°; II, III-IV, 0.51, 490°; II, III, 0.64, -; II, III, 0.47, 400°; II, IV, 0.41, 450°. In the experiment, the researchers used many compounds, for example, 7-Methyl-1H-benzo[d]imidazole (cas: 4887-83-6Product Details of 4887-83-6).

7-Methyl-1H-benzo[d]imidazole (cas: 4887-83-6) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. Imidazole is incorporated into many important biological compounds. The most pervasive is the amino acid histidine, which has an imidazole side-chain. Histidine is present in many proteins and enzymes, e.g. by binding metal cofactors, as seen in hemoglobin.Product Details of 4887-83-6

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Unusual synthesis of stable pyridinium dinitromethylides was written by Andreasson, Eva;Newton, Christopher G.;Ollis, W. David;Rees, Charles W.;Smith, David I.;Wright, Derek E.. And the article was included in Journal of the Chemical Society, Chemical Communications in 1983.Formula: C9H8N2O2 This article mentions the following:

Nitration of imidazo[1,2-a]pyridines with concentrated HNO₃ and H₂SO₄ at room temperature gave pyridinium dinitromethylides in 51-85% yield; these compounds have orthogonal pyridinium and dinitromethylide groups. E.g., treatment of ester I with fuming HNO₃-concentrated H₂SO₄ at room temperature gave 61% ylide II. Reaction mechanisms involving sequential nitration and ring cleavage are discussed. In the experiment, the researchers used many compounds, for example, Methyl imidazo[1,2-a]pyridine-5-carboxylate (cas: 88047-55-6Formula: C9H8N2O2).

Methyl imidazo[1,2-a]pyridine-5-carboxylate (cas: 88047-55-6) belongs to imidazole derivatives. Imidazole is a heterocyclic compound with a five-membered planar ring. It is amphoteric and highly polar. Imidazole has been usedin the lysis, wash and elution buffer for the purification of histidine tagged Sonic Hedgehog(shh-N) protein, in elution buffer in stepwise gradient for the purification of histidine tagged aldo keto reductases using nickel affinity chromatography, as a component of homogenization buffer for the purification of phagosomal compartments from dendritic cells.Formula: C9H8N2O2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Graphene oxide supported chlorostannate (IV) ionic liquid: Bronsted-Lewis acidic combined catalyst for highly efficient Baeyer-Villiger oxidation in water was written by Xing, Chen;Tan, Rong;Hao, Pengbo;Gao, Mengqiao;Yin, Donghong;Yin, Dulin. And the article was included in Molecular Catalysis in 2017.Related Products of 79917-89-8 This article mentions the following:

Lewis acidic chlorostannate(IV)-based imidazolium ionic liquid ([PmimCl][SnCl₄]_x IL) was post-grafted on graphene oxide (GO) nanosheets through a silylation process. Characterization results suggested the coexistence of intrinsic carboxylic acid on GO edges and the post-grafted Lewis acidic IL on GO planes in the catalysts. The Bronsted-Lewis acidic combined catalysts of GO/[PmimCl][SnCl₄] were highly efficient and universal in Baeyer-Villiger (BV) oxidation in water due to the high water-dispersion, diminished diffusion limitation, enriched surface acid sites, as well as the concerted effects between Bronsted and Lewis acid sites. Only 3.0 mol% of GO/[PmimCl][SnCl₄]_x (x = 0.5, 1.0, 1.5) was sufficient for affording almost quant. yield of a wide range of lactones in water without the need of any organic solvents and cocatalysts, whereas Lewis acidic IL of [PmimCl][SnCl₄]_1.0 itself was far less efficient. More importantly, the heterogeneous catalysts were perfectly stable and could be reused several times without significant loss of activity and selectivity. In the experiment, the researchers used many compounds, for example, 1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8Related Products of 79917-89-8).

1-Methyl-3-propylimidazolium Chloride (cas: 79917-89-8) belongs to imidazole derivatives. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole has become an important synthon in the development of new drugs. Imidazole is incorporated into many important biological compounds. The most pervasive is the amino acid histidine, which has an imidazole side-chain. Histidine is present in many proteins and enzymes, e.g. by binding metal cofactors, as seen in hemoglobin.Related Products of 79917-89-8

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Copper-mediated oxidative cyclization of heterocyclically substituted aldimines was written by Pufky-Heinrich, Daniela;Ciesielski, Michael;Gharnati, Loubna;Walter, Olaf;Doering, Manfred. And the article was included in Heterocycles in 2010.Product Details of 85692-37-1 This article mentions the following:

Cu-mediated cascade reactions were performed with heteroaryl aldimines. These oxidative heterocyclizations include sequences of oxidations and cycloadditions or nucleophilic additions, which take place in the coordination sphere of Cu ions. When 2 heteroaryl aldimines were reacted in the presence of Cu(II) under air, pyridines were produced. In one case, a 5,8-di-1H-imidazol-2-yl-3,7-dipyridin-2-yl-1,4-diazatricyclo[3.2.1.0^2,7]oct-3-ene was also formed. The basic structure of this new tetracyclic compound contains 5 new chiral C atoms. Its cage-like structure was revealed by x-ray crystallog. [orthorhombic, space group Pna(2), a 20.2315(15), b 10.0265(7), c 11.2033(8) Å, V 2272.6(3) ų, Z 4]. The synthesis of 2H-pyrroles by Cu-assisted conversions of the aldimines with acetylenedicarboxylate or quinones was also described. In the experiment, the researchers used many compounds, for example, 1-(1-Methyl-1H-imidazol-2-yl)ethanone (cas: 85692-37-1Product Details of 85692-37-1).

1-(1-Methyl-1H-imidazol-2-yl)ethanone (cas: 85692-37-1) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. Imidazole has been usedin the lysis, wash and elution buffer for the purification of histidine tagged Sonic Hedgehog(shh-N) protein, in elution buffer in stepwise gradient for the purification of histidine tagged aldo keto reductases using nickel affinity chromatography, as a component of homogenization buffer for the purification of phagosomal compartments from dendritic cells.Product Details of 85692-37-1

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

B-ring modified aurones as promising allosteric inhibitors of hepatitis C virus RNA-dependent RNA polymerase was written by Meguellati, Amel;Ahmed-Belkacem, Abdelhakim;Yi, Wei;Haudecoeur, Romain;Crouillere, Marie;Brillet, Rozenn;Pawlotsky, Jean-Michel;Boumendjel, Ahcene;Peuchmaur, Marine. And the article was included in European Journal of Medicinal Chemistry in 2014.Related Products of 58442-17-4 This article mentions the following:

Following our recent report showing the potential of naturally occurring aurones (2-benzylidenebenzofuran-3(2H)-ones) as anti-hepatitis C virus (HCV) agents, efforts were continued in order to refine the structural requirements for the inhibitory effect on HCV RNA-dependent RNA polymerase (RdRp). In this study, we targeted the B-ring moiety of aurones with the aim to improve structural features associated with higher inhibition of the targeted polymerase. In vitro evaluation of the RdRp inhibitory activity of the 37 newly synthesized compounds pointed out that the replacement of the B-ring with an N-substituted indole moiety induced the highest inhibitory effect. Of these, compounds 31, 40 and 41 were found to be the most active (IC₅₀ = 2.3-2.4 μM). Docking experiments performed with the most active compounds revealed that the allosteric thumb pocket I of RdRp is the binding pocket for aurone analogs. In the experiment, the researchers used many compounds, for example, 1H-Benzimidazole-5-carbaldehyde (cas: 58442-17-4Related Products of 58442-17-4).

1H-Benzimidazole-5-carbaldehyde (cas: 58442-17-4) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. This ring system is present in important biological building blocks, such as histidine and the related hormone histamine.Related Products of 58442-17-4

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Influence of the alkyl side chain length on the thermophysical properties of chiral ionic liquids with a (1R,2S,5R)-(-)-menthol substituent and data analysis by means of mathematical gnostics was written by Andresova, Adela;Bendova, Magdalena;Schwarz, Jaroslav;Wagner, Zdenek;Feder-Kubis, Joanna. And the article was included in Journal of Molecular Liquids in 2017.Quality Control of 1-Octyl-1H-imidazole This article mentions the following:

A comprehensive physico-chem. characterization of the chiral ionic liquids of a 3-alkyl-1-[(1R,2S,5R)-(-)-menthoxymethyl]imidazolium bis(trifluoromethylsulfonyl)imides homologous series with a linear alkyl substituent ranging from the Me up to the dodecyl group was carried out exptl. to investigate the way in which the measured thermophys. properties were influenced by the alkyl chain length on the cation. Refractive index, d., speed of sound, and isobaric heat capacity were measured as a function of temperature at atm. pressure and analyzed by methods based on math. gnostics. A robust linear regression along a gnostic influence function was used to optimize parameters of the relationships used in this work and to estimate the changing nanosegregation in the studied ionic liquid series by finding the Critical Alkyl Length Size (CALS) from heat capacity data. In addition, we propose the use of the marginal anal. to assess the quality of the measured data as an alternative to the estimate of the measurement uncertainty. In the experiment, the researchers used many compounds, for example, 1-Octyl-1H-imidazole (cas: 21252-69-7Quality Control of 1-Octyl-1H-imidazole).

1-Octyl-1H-imidazole (cas: 21252-69-7) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. Imidazole is incorporated into many important biological compounds. The most pervasive is the amino acid histidine, which has an imidazole side-chain. Histidine is present in many proteins and enzymes, e.g. by binding metal cofactors, as seen in hemoglobin.Quality Control of 1-Octyl-1H-imidazole

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Syntheses of formamidines and benzimidazoles was written by Mathias, L. J.;Overberger, C. G.. And the article was included in Synthetic Communications in 1975.Category: imidazoles-derivatives This article mentions the following:

The benzimidazoles I (R = 5(6)-Cl, 5(6)-Me, 5(6)-CO2H, 5(6)-benzimidazol-5(6)-yl) were prepared by cyclization of 4-RC6H3(NH2)2-1,2 with HCO2H in the presence of HCl and a strong acid resin. RNHCH:NR (R = p-O2NC6H4, p-H2NC6H4, 2-thiazolyl, 2-pyridyl) and I (R = 5(6)-Me, 4(7)-Me, 5(6)-NO2, 5(6)-COMe, 5(6)-CHO, 5(6)-Cl) were prepared by treating RNH2 or RC6H4(NH2)2-1,2 with Cl2CHOMe containing (Me3C)3N. In the experiment, the researchers used many compounds, for example, 7-Methyl-1H-benzo[d]imidazole (cas: 4887-83-6Category: imidazoles-derivatives).

7-Methyl-1H-benzo[d]imidazole (cas: 4887-83-6) belongs to imidazole derivatives. Imidazole is the basic core of some natural products such as histidine, purine, histamine and DNA based structures, etc. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole also acts as a microtubule destabilizing agents and inhibits topoisomerase and Cytochrome P450 Family 26 Subfamily A Member 1 (CYP26A1) enzymes.Category: imidazoles-derivatives

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem