Category: imidazoles-derivatives

Sioriki, Eleni published the artcileIn vitro Anti-atherogenic Properties of N-Heterocyclic Carbene Aurate(I) Compounds, Product Details of C27H39ClN2, the publication is ChemMedChem (2018), 13(23), 2484-2487, database is CAplus and MEDLINE.

The anti-atherogenic (anti-inflammatory) properties of various aurate(I) salts, of the general formula [NHC·H][AuCl₂] (NHC=N-heterocyclic carbene) were investigated. The aurates were easily synthesized and obtained in anal. pure form. In addition, the biol. activity of these compounds against atheromatosis via in vitro inhibition of platelet-activating factor (PAF)-induced platelet aggregation was probed. All complexes were found to possess anti-aggregatory properties in vitro with [IPr*·H][AuCl₂] (6) being the most potent inhibitor of PAF at micromolar concentration Based on our findings, we conclude that these simply assembled aurates are a very promising class of PAF inhibitors and anti-inflammatory drugs.

ChemMedChem published new progress about 258278-25-0. 258278-25-0 belongs to imidazoles-derivatives, auxiliary class Achiral NHCs Ligands, name is 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, and the molecular formula is C9H13NO2, Product Details of C27H39ClN2.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Li, Youshan published the artcileBioorthogonal Ligation and Cleavage by Reactions of Chloroquinoxalines with ortho-Dithiophenols, Category: imidazoles-derivatives, the publication is Angewandte Chemie, International Edition (2020), 59(9), 3671-3677, database is CAplus and MEDLINE.

A bioorthogonal ligation and cleavage method via reactions of chloroquinoxalines (CQ) and ortho-dithiophenols (DT) is presented. Double nucleophilic substitutions of ortho-dithiophenols to chloroquinoxalines provide conjugates containing tetracyclic benzo[5,6][1,4]dithiino[2,3-b]quinoxaline with strong built-in fluorescence together with release of the other functional mols. Three cleavable linkers were designed and successfully used in release of the mols. containing biotin from the protein conjugates. The CQ-DT bioorthogonal reactions can be applied for the bioorthogonal ligations, bioorthogonal cleavages, and trans-tagging of proteins, and show advantages of readily accessible unnatural orthogonal groups, appealing reaction kinetics (k₂ â‰?1.3 m^-1 s^-1), excellent biocompatibility of orthogonal groups, and high stability of conjugates. This complements previous bioorthogonal reactions and is a new route for protein-fishing applications and in-gel fluorescence anal.

Angewandte Chemie, International Edition published new progress about 359860-27-8. 359860-27-8 belongs to imidazoles-derivatives, auxiliary class Other Aliphatic Heterocyclic,Chiral,Amine,Amide,Ether,Inhibitor, name is N-(2-(2-(2-(2-Aminoethoxy)ethoxy)ethoxy)ethyl)-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide, and the molecular formula is C18H34N4O5S, Category: imidazoles-derivatives.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Gu, Yang published the artcileLigand-Controlled Copper-Catalyzed Highly Regioselective Difluoromethylation of Allylic Chlorides/Bromides and Propargyl Bromides, Product Details of C27H39ClN2, the publication is Chinese Journal of Chemistry (2018), 36(1), 55-58, database is CAplus.

Highly regiodivergent copper-catalyzed allylic/propargylic difluoromethylation reactions by employing different ligands were described. When 5,6-dimethyl-1,10-phenanthroline was used as the ligand, exclusively α-difluoromethylated products I [R = 4-ClC₆H₄, 4-CF₃C₆H₄, 1-naphthyl, etc.] were obtained, while γ-selective difluoromethylated products II were generated when N-heterocyclic carbene-SIPr was used as the ligand. Likewise, α-difluoromethylated products III [Ar = 4-ClC₆H₄, 4-CF₃C₆H₄, 4-t-BuC₆H₄, etc.] and γ-difluoromethylated products IV were achieved in the presence of similar copper catalysts for the reactions of propargyl bromides. Moreover, a copper-catalyzed asym. allylic difluoromethylation reaction with moderate to good enantioselectivity by the use of chiral ligands was afforded α-difluoromethylated products II [R = 3-ClC₆H₄, 4-CO₂MeC₆H₄, 2,5-(Br)₂C₆H₃, etc.].

Chinese Journal of Chemistry published new progress about 258278-25-0. 258278-25-0 belongs to imidazoles-derivatives, auxiliary class Achiral NHCs Ligands, name is 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, and the molecular formula is C27H39ClN2, Product Details of C27H39ClN2.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Jiang, Cheng published the artcileNi-Catalyzed 1,2-Acyl Migration Reactions Triggered by C-C Bond Activation of Ketones, Recommanded Product: 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, the publication is ACS Catalysis (2020), 10(3), 1947-1953, database is CAplus.

A Ni-catalyzed 1,2-acyl migration triggered by C-C bond cleavage was developed. The process of 1,2-acyl migration followed by olefin isomerization provides a convenient access to α,β-unsaturated ketones, which are well-known building blocks in organic synthesis. Exptl. and computational studies show that the selective β-hydride elimination and Ni-hydride reinsertion play an essential role in this reaction.

ACS Catalysis published new progress about 258278-25-0. 258278-25-0 belongs to imidazoles-derivatives, auxiliary class Achiral NHCs Ligands, name is 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, and the molecular formula is C27H39ClN2, Recommanded Product: 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Jia, Hongxing published the artcileIn situ anodic electrodeposition of two-dimensional conductive metal-organic framework@nickel foam for high-performance flexible supercapacitor, Safety of 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, the publication is Journal of Power Sources (2022), 231163, database is CAplus.

Owing to their large sp. surface area and well-defined porosity, metal-organic frameworks (MOFs) have long been considered as promising materials for energy storage. Unfortunately, their straightforward utilization in supercapacitors was hindered for years due to poor conductivity until the emergence of 2D conductive MOF materials. To date, several 2D conductive MOF-based supercapacitors have been reported. Nevertheless, almost all these supercapacitors were fabricated from MOF powders through a slurry coating method or dense packing method, which neg. affected their capacitor performance. Herein, we have developed an anodic electrodeposition (AED) approach to fabricate a uniformly deposited 2D conducting MOF on nickel foam and use it directly as electrodes for supercapacitors without any additives. The superior performance of the 2D conducting MOF on nickel foam in both aqueous and organic electrolytes was then disclosed by a series of electrochem. measurements, demonstrating the significant advantages of the AED approach over traditional methods.

Journal of Power Sources published new progress about 79917-90-1. 79917-90-1 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid,Ionic Liquid, name is 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, and the molecular formula is C8H15ClN2, Safety of 3-Butyl-1-methyl-1H-imidazol-3-ium chloride.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Zhou, Jing published the artcileGadolinium complex and phosphorescent probe-modified NaDyF₄ nanorods for T₁– and T₂-weighted MRI/CT/phosphorescence multimodality imaging, Recommanded Product: 1,2-Diphenyl-1H-benzo[d]imidazole, the publication is Biomaterials (2014), 35(1), 368-377, database is CAplus and MEDLINE.

To compensate for the deficiencies of individual imaging modalities, lanthanide-based nanoparticles are ideal building blocks for multifunctional contrast agents. Herein, oleic acid-coated NaDyF₄ nanorods (DyNPs) were synthesized by the hydrothermal method, and then coated with α-cyclodextrin (α-CD) and modified with gadolinium complex (Gd-DTPA) to obtain hydrophilic and functionalized nanoparticles (DyNPs-Gd). By loading the phosphorescent probe (iridium-complex) within the surface hydrophobic layer, the developed nanophosphors (DyNPs-Gd-Ir) could be further applied in phosphorescent cell labeling. The Dy in the host induces a high X-ray absorption ability for X-ray computed tomog. (CT) and neg. enhancement for T₂-weighted magnetic resonance imaging (MRI), whereas pos. contrast for T₁-weighted MRI results from the Gd-DTPA. DyNPs-Gd-Ir has been successfully applied to T₁– and T₂-weighted MRI/CT in vivo. Toxicity studies demonstrated that DyNPs-Gd-Ir exhibited low toxicity to living systems. Therefore, DyNPs-Gd-Ir could be a platform for next-generation contrast agents for T₁– and T₂-weighted MRI/CT/phosphorescence multimodal imaging.

Biomaterials published new progress about 2622-67-5. 2622-67-5 belongs to imidazoles-derivatives, auxiliary class Benzimidazole,Benzene,Benzimidazole, name is 1,2-Diphenyl-1H-benzo[d]imidazole, and the molecular formula is CBF6K, Recommanded Product: 1,2-Diphenyl-1H-benzo[d]imidazole.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Aslan, Kadir published the artcileControlled and Reversible Aggregation of Biotinylated Gold Nanoparticles with Streptavidin, SDS of cas: 359860-27-8, the publication is Journal of Physical Chemistry B (2004), 108(40), 15631-15639, database is CAplus.

Biotinylated gold nanoparticles were prepared by using a two-step surface modification procedure. First, a carboxyl-terminated alkanethiol was chemisorbed onto the surface of gold nanoparticles in the presence of a stabilizing agent. Subsequently, the carboxyl groups were reacted with (+)-biotinyl-3,6,9,-trioxaundecanediamine and 2-(2-aminoethoxy)ethanol. This procedure resulted in stable, ligand-modified gold nanoparticles. Upon interaction with streptavidin, the biotinylated gold nanoparticles aggregated by means of specific biomol. recognition. Their aggregation was studied by optical absorption spectroscopy. Controlled aggregation of biotinylated gold nanoparticles resulted in a shift in the surface plasmon resonance peak and broadening of the absorption spectrum of the nanoparticles. The spectral changes were used to assess the extent of aggregation. Aggregation was found to be dependent on the concentrations of streptavidin, biotinylated gold nanoparticles, and the surface mole fraction of biotin groups on the nanoparticles. Maximum aggregation was observed when 24 nM streptavidin and 0.80 nM biotinylated gold nanoparticles were used. Reversal of nanoparticle aggregation was accomplished by the addition of soluble biotin to the streptavidin-nanoparticle aggregates. Kinetic anal. of the absorbance data showed that streptavidin-induced aggregation of biotinylated gold nanoparticles could be interpreted in terms of a Reaction-Limited Colloidal Aggregation (RLCA) model. This indicates that optical absorption spectroscopy can provide a quant. measurement of the aggregation process.

Journal of Physical Chemistry B published new progress about 359860-27-8. 359860-27-8 belongs to imidazoles-derivatives, auxiliary class Other Aliphatic Heterocyclic,Chiral,Amine,Amide,Ether,Inhibitor, name is N-(2-(2-(2-(2-Aminoethoxy)ethoxy)ethoxy)ethyl)-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide, and the molecular formula is C18H34N4O5S, SDS of cas: 359860-27-8.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Yang, Mei published the artcileDissipation and Risk Assessment of Multiresidual Fungicides in Grapes under Field Conditions, Product Details of C11H8ClN3, the publication is Journal of Agricultural and Food Chemistry (2020), 68(4), 1071-1078, database is CAplus and MEDLINE.

Grapes are among the most popular fruits globally, and various fungicides are widely applied to grape crops. As such, the presence of multiple fungicide residues and dietary risks in grapes has become the focus of significant attention. In this study, an easy-to-implement and sensitive UPLC-MS/MS approach was developed to simultaneously determine pyraclostrobin, dimethomorph, cymoxanil, cyazofamid and its metabolite CCIM in grapes via QuEChERS. This approach achieved 78.1-106.0% recovery and a 0.01 mg kg^-1 limit of quantitation (LOQ). Field trials revealed that these compounds had degradation half-lives ranging from 0.9 to 14.4 days. And their terminal residues ranging from < LOQ to 0.94 mg kg^-1 were below the official maximum residue limit (MRL) in China. The short-term risk for each tested fungicide was below 54%. The long-term risk of individual chems. ranged from 0.0086% to 2%, and their cumulative risk was 3.3%. Results indicated that the dietary risk of these fungicides in grapes was minor.

Journal of Agricultural and Food Chemistry published new progress about 120118-14-1. 120118-14-1 belongs to imidazoles-derivatives, auxiliary class Imidazole,Chloride,Nitrile,Benzene, name is 4-Chloro-5-(p-tolyl)-1H-imidazole-2-carbonitrile, and the molecular formula is C9H5ClO4S, Product Details of C11H8ClN3.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

He, Xi published the artcileEffect of mixed ionic liquids on chain entanglement and relaxation of poly (methyl methacrylate), Synthetic Route of 862731-66-6, the publication is Gaofenzi Xuebao (2021), 52(1), 84-93, database is CAplus.

A kind of dicationic ionic liquid (DIL) [C₈(MIM)₂][TFSI]₂ with double charged imidazole rings was successfully synthesized and mixed with a monocationic ionic liquids (MIL) [C₈ (MIM) ][TFSI]. Compared with MIL, the double imidazolium rings on the DIL cation greatly limits the vibration ability of the alkyl chain, which shows a much higher wavenumber in IR spectrum. The DIL/MIL mixtures show Arrhenius fluid behavior, and their viscosities follow the logarithmic mixing rule. With the increase of DIL content in the ILs mixtures, the viscosity and flow activation energy gradually increase, which is closely related to the mol. size and intermol. interaction of DIL. Then, the effect of mixed ILs on the entanglement and relaxation of poly (Me methacrylate) (PMMA) was extensively investigated by rheol. tests. The master curves obtained by time-temperature superposition principle show that DIL could significantly change the relaxation behavior and entanglement state of PMMA chains in mixed ILs. With increasing DIL content in the mixed ILs, both the terminal relaxation τ1 and entanglement relaxation τe of PMMA chains were retarded, and the entanglement network of the PMMA/ILs becomes more compact, showing higher plateau modulus and greater viscosity. More interaction sites could be formed between PMMA chains and DIL mols. due to its unique double imidazolium rings structure, which results in more cohesive entanglements among PMMA chains and thus restrict their relaxation. Moreover, there is a math. relationship between the rheol. parameters (such as τ₁ and τ_e) of PMMA/ILs and the viscosity of ILs mixtures, so the rheol. behavior of the system could be approx. predicted. On the other hand, thermal stability, glass transition and ion conductivity of PMMA/ILs were also discussed. The thermal decomposition temperature and glass transition temperature of PMMA/ILs increased with the DIL content, while the ionic conductivity decreased slightly.

Gaofenzi Xuebao published new progress about 862731-66-6. 862731-66-6 belongs to imidazoles-derivatives, auxiliary class Ionic Liquid, name is 1-octyl-3-methylimidazolium bis((trifluoromethyl)sulfonyl)imide, and the molecular formula is C16H23F6N3O2, Synthetic Route of 862731-66-6.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Lu, Guoqiang published the artcileTransition-Metal-Free Synthesis of 1,2-diphenyl-1H-benzo[d] Imidazole Derivatives from N-phenylbenzimidamides and Cyclohexanones, Safety of 1,2-Diphenyl-1H-benzo[d]imidazole, the publication is Advanced Synthesis & Catalysis (2020), 362(3), 487-492, database is CAplus.

A transition-metal-free strategy for the formation of 1,2-diphenyl-1H-benzo[d]imidazoles from N-phenylbenzimidamides and cyclohexanones is introduced. This is the first report on the direct synthesis of 1,2-diphenyl-1H-benzo[d]imidazoles from cyclohexanones and N-phenylbenzimidamides via iodine promoted oxidative cyclization. Non-aromatic cyclohexanones were smoothly dehydrogenated, and acted as an aryl source using oxygen as a green oxidant. The catalytic use of iodine makes this method quite simple, more economical and convenient. Under optimized conditions, various substituted 1,2-diphenyl-1H-benzo[d]imidazoles were smoothly reacted, and the desired substituted imidazoles were generated in moderate to excellent yields.

Advanced Synthesis & Catalysis published new progress about 2622-67-5. 2622-67-5 belongs to imidazoles-derivatives, auxiliary class Benzimidazole,Benzene,Benzimidazole, name is 1,2-Diphenyl-1H-benzo[d]imidazole, and the molecular formula is C19H14N2, Safety of 1,2-Diphenyl-1H-benzo[d]imidazole.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem