Category: imidazoles-derivatives

Hyun, Jinho published the artcileFabrication of “smart” protein nanostructures using molecular recognition and dip-pen nanolithography, Application of N-(2-(2-(2-(2-Aminoethoxy)ethoxy)ethoxy)ethyl)-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide, the publication is PMSE Preprints (2003), 261-262, database is CAplus.

Dip-pen nanolithog. in combination with the high-affinity streptavidin-biotin and streptavidin-iminobiotin protein ligand system provide a simple bottom-up approach to creating smart nanoscale biomol. structures in a step-wise fashion by patterning a self-assembled monolayer of a CO₂H-terminated alkanethiol on a gold substrate, followed by covalent immobilization of a high-affinity, small mol. ligand (biotin) on the nanopatterned self-assembled monolayer and mol. recognition of its protein binding partner, streptavidin from solution The resulting nanopattern provides a universal platform for mol. recognition-mediated protein immobilization. Both irreversible immobilization of a biotin-tagged protein and stimulus-triggered, reversible immobilization of N-hydroxysuccinimidoiminobiotin are presented.

PMSE Preprints 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, Application of N-(2-(2-(2-(2-Aminoethoxy)ethoxy)ethoxy)ethyl)-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide.

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

Villemejeanne, Benoit published the artcileHalide based ionic liquid mixture for a sustainable electrochemical recovery of precious metals, Name: 3-Butyl-1-methyl-1H-imidazol-3-ium chloride, the publication is Journal of Environmental Chemical Engineering (2022), 10(1), 107063, database is CAplus.

Precious metal refining from ore or electronic devices includes hydrometallurgical processes with major concern about toxicity or wastewater production As an alternative, one-step electroleaching-electrochem. deposition process (EL-ECD) using ionic liquid mixtures was evaluated for palladium and gold recovery. A halide based ionic liquid combined with a diluting ionic liquid was chosen among ten electrolytes after cyclic voltammetry and potentiostatic experiments These low viscous electrolytes allow complexing Au and Pd, leading to metal leaching at low anodic potential. Moreover, the complexes formed could be simultaneously deposited at the cathode. Metal behavior is similar for all halide anions tested (chloride, bromide and iodide). Results show that chloride based mixtures are the more suitable electrolyte providing the highest leaching faradic yield. This process appears more sustainable than conventional processes (chlorination, cyanide leaching) thanks to the electrolyte stability limiting solvent losses but also workers exposition.

Journal of Environmental Chemical Engineering 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 C9H21NO3, Name: 3-Butyl-1-methyl-1H-imidazol-3-ium chloride.

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

Nicastri, Michael C. published the artcileSynthesis of Sterically Hindered Primary Amines by Concurrent Tandem Photoredox Catalysis, Application of 2-(2-Methyl-1H-imidazol-1-yl)pyridine-4-carbonitrile, the publication is Journal of the American Chemical Society (2020), 142(2), 987-998, database is CAplus and MEDLINE.

Primary amines are an important structural motif in active pharmaceutical ingredients (APIs) and intermediates thereof, as well as members of ligand libraries for either biol. or catalytic applications. Many chem. methodologies exist for amine synthesis, but the direct synthesis of primary amines with a fully substituted α carbon center is an underdeveloped area. We report a method which utilizes photoredox catalysis to couple readily available O-benzoyl oximes with cyanoarenes to synthesize primary amines with fully substituted α-carbons. We also demonstrate that this method enables the synthesis of amines with α-trifluoromethyl functionality. Based on exptl. and computational results, we propose a mechanism where the photocatalyst engages in concurrent tandem catalysis by reacting with the oxime as a triplet sensitizer in the first catalytic cycle and a reductant toward the cyanoarene in the second catalytic cycle to achieve the synthesis of hindered primary amines via heterocoupling of radicals from readily available oximes.

Journal of the American Chemical Society published new progress about 1016841-67-0. 1016841-67-0 belongs to imidazoles-derivatives, auxiliary class Imidazoles, name is 2-(2-Methyl-1H-imidazol-1-yl)pyridine-4-carbonitrile, and the molecular formula is C10H8N4, Application of 2-(2-Methyl-1H-imidazol-1-yl)pyridine-4-carbonitrile.

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

Huang, Jau-Jiun published the artcileNovel Benzimidazole Derivatives as Electron-Transporting Type Host To Achieve Highly Efficient Sky-Blue Phosphorescent Organic Light-Emitting Diode (PHOLED) Device, Name: 1,2-Diphenyl-1H-benzo[d]imidazole, the publication is Organic Letters (2014), 16(20), 5398-5401, database is CAplus and MEDLINE.

The development of benzimidazole-substituted biphenyls as electron-transporting hosts for bis[2-(4,6-difluorophenyl)pyridinato-C²,N](picolinato)iridium(III) is reported. Under the optimized conditions, the organic light-emitting diode (OLED) achieves the maximum current efficiency of 57.2 cd/A, power efficiency of 50.4 lm/W, and external quantum efficiency 25.7%.

Organic Letters 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, Name: 1,2-Diphenyl-1H-benzo[d]imidazole.

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

Zhu, Shaoli published the artcileA localized surface plasmon resonance nanosensor based on rhombic Ag nanoparticle array, SDS of cas: 359860-27-8, the publication is Sensors and Actuators, B: Chemical (2008), 134(1), 193-198, database is CAplus.

A localized surface plasmon resonance (LSPR) nanosensor by using a rhombic Ag nanoparticle array is proposed and developed. The LSPR extinction spectra of the antigen or antibody with lower concentration are detected. The obtained results detected from 100 nM target mol. indicate a larger wavelength shift for the rhombic based nanosensor than the triangular based nanosensor. By exptl. detection, we demonstrated that the refractive index sensitivity is 266.2 nm per refractive index unit for Ag rhombic nanoparticle with in-plane width of �40 nm and out-of-plane height of 47 nm.

Sensors and Actuators, B: Chemical 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 C6H10F3NO, SDS of cas: 359860-27-8.

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

Jia, Xiaolong published the artcileEffects of pretreated polysulfonamide pulp on the ablation behavior of EPDM composites, Product Details of C19H14N2, the publication is Materials Chemistry and Physics (2008), 112(3), 823-830, database is CAplus.

Excellent ablative properties of ethylene-propylene-diene elastomer (EPDM) composites were obtained by adding pretreated polysulfonamide pulp (PSA-pulp). The effects of pulp pretreatment and pulp content on the mech. and ablative properties of PSA-pulp/EPDM composites were studied. Exptl. results showed that the tensile strength decreased slightly and the ablative properties increased by 3 folds on addition of 10 phr pretreated PSA-pulp. This significant improvement in the ablative properties was attributed to the enhanced dispersion degree and improved interfacial adhesion of pretreated PSA-pulp to EPDM matrix, which were observed from SEM. The ablation behavior of pretreated PSA-pulp/EPDM composites was proposed in accordance with the characterizations of thermogravimetric anal. (TGA), energy disperse X-ray spectroscopy (EDS) and pyrolysis-gas chromatograph-mass spectrometry (Py-GC-MS). The carbonized PSA-pulp acted as a skeleton in retaining the char layer and reduced the material loss during the high temperature ablation.

Materials Chemistry and Physics 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, Product Details of C19H14N2.

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

Zhou, Tongliang published the artcile[Pd(NHC)(acac)Cl]: Well-Defined, Air-Stable, and Readily Available Precatalysts for Suzuki and Buchwald-Hartwig Cross-coupling (Transamidation) of Amides and Esters by N-C/O-C Activation, Quality Control of 258278-25-0, the publication is Organic Letters (2019), 21(9), 3304-3309, database is CAplus and MEDLINE.

A general class of well-defined, air-stable, and readily available Pd(II)-NHC precatalysts (NHC = N-heterocyclic carbene) for Suzuki and Buchwald-Hartwig cross-coupling of amides (transamidation) and esters by selective N-C/O-C cleavage is reported. Since these precatalysts are highly active and the easiest to synthesize, the study clearly suggests that [Pd(NHC)(acac)Cl] should be routinely included during the development of new cross-coupling methods. An assay for in situ screening of NHC salts in this cross-coupling manifold is presented.

Organic Letters 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 C18H23N3O4S, Quality Control of 258278-25-0.

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

Shan, Guo-Gang published the artcileEnhancing the luminescence properties and stability of cationic iridium(III) complexes based on phenylbenzoimidazole ligand: a combined experimental and theoretical study, Related Products of imidazoles-derivatives, the publication is Dalton Transactions (2013), 42(31), 11056-11065, database is CAplus and MEDLINE.

Herein we designed and synthesized a series of cationic iridium(III) complexes with a phenylbenzimidazole-based cyclometalated ligands, containing different numbers of carbazole moieties from zero to three. Complexes [Ir(Phbi)₂(PyPhbi)][PF₆] (1, H-Phbi = 1,2-diphenylbenzimidazole, PyPhbi = 3-phenyl-2-(2-pyridyl)benzimidazole) [Ir(Phbi)₂(PyCbzbi)][PF₆] [2, PyCbzbi = 1-(4-(9-carbazolyl)phenyl)-2-(2-pyridyl)benzimidazole], [Ir(Cbzbi)₂(PyPhbi)][PF₆] [3, H-Cbzbi = 1-(4-(9-carbazolyl)phenyl)-2-phenylbenzimidazole] and [Ir(Cbzbi)₂(PyCbzbi)][PF₆] (4) were prepared by reacting the corresponding chloro-bridged dimers [Ir₂(Phbi)₄(μ-Cl)₂] and [Ir₂(Cbzbi)₄(μ-Cl)₂] with pyridylbenzimidazoles PyPhbi and PyCbzbi. The photophys. and electrochem. properties of this series have been systematically investigated. The complexes exhibit strong luminescence in both solution and in neat films, as well as excellent redox reversibility. Introducing carbazole groups into the complexes is found to lead to substantially enhanced photoluminescence quantum efficiency in the neat film, but has little effect on the emitting color and excited-state characteristics as supported by d. functional theory (DFT) results. DFT calculations also suggest that functionalized complexes 2–4 reveal better hole-transporting properties than 1. More importantly, all complexes effectively reduce the degradation reaction to some extent in metal-centered (³MC) excited-states, demonstrating their stability. Further studies indicate that restriction of opening of the structures in the ³MC state is caused by the unique mol. conformation of the phenylbenzimidazole ligand, which is first demonstrated here in cationic iridium(iii) complexes without intramol. π-π stacking. These results presented here would provide valuable information for designing and synthesizing highly efficient and stable cationic iridium(III) complexes suitable for the optical devices.

Dalton Transactions 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 C4H6BrFO2, Related Products of imidazoles-derivatives.

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

Li, Hui published the artcileDesign, synthesis, and optoelectronic properties of dendrimeric Pt(II) complexes and their ability to inhibit intermolecular interaction, Quality Control of 2622-67-5, the publication is Inorganic Chemistry (2014), 53(2), 810-821, database is CAplus and MEDLINE.

Dendrimeric Pt-(II) complexes [(CN̂)-Pt(dpm)] and [Pt(CN̂)₂] (Hdpm = dipivaloylmethane, HCN̂ = 1,2-diphenylbenzoimidazole and its derivatives containing the carbazole dendrons) have been synthesized and characterized systematically. All of the complexes display green emission in the range of 495-535 nm that originated from the 360-440 nm absorption bands, which are assigned to dπ-(Pt)→π*-(L) metal-to-ligand charge transfer (MLCT) mixed with intraligand π-(L)→π*-(L) transition. Solution photoluminescence quantum yield (φ_p 0.26-0.31) of the heteroleptic complexes [(Cd^old^olandd^old^olN)-Pt-(dpm)] obviously increases when compared with that of complex [(Cd^old^olandd^old^olN)-Pt-(acac)]. Organic light-emitting diode devices based on these Pt-(II) complexes with a multilayer configuration were fabricated and gave desirable electroluminescent (EL) performances, such as non- or less red-shifted EL spectra, in comparison with the photoluminescence spectra and slow efficiency roll-off with increasing brightness or c.d. Complex [(t-BuCzCzPBI)-Pt-(dpm)] (where t-BuCzCzPBI = 1-(4-(3,6-di-(3,6-di-t-butyl-carbazol-9-yl))-carbazol-9-yl)-phenyl-2-phenylbenzoimidazole) showed the best performance, with a maximum current efficiency of 29.31 cd/A and a maximum external quantum efficiency (EQE) of 9.04% among the fabricated devices. Likewise, for homoleptic [Pt-(t-BuCzCzPBI)₂] dendrimer, the powder φ_p (0.14) and maximum EQE (0.74%) improve by 7 and 7.4 times, resp., as high as they do for nondendrimeric [Pt-(1,2-diphenylbenzoimidazole)₂] (0.02, 0.10%), although its efficiency is still lower than that of the heteroleptic counterpart due to the severely distorted square-planar geometry of the emitting core. These results reveal that large steric hindrance from ancillary ligand (dpm) or the homoleptic conformation can effectively inhibit intermol. interaction for these dendrimeric Pt-(II) complexes.

Inorganic Chemistry 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, Quality Control of 2622-67-5.

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

Qiao, Haiyu published the artcileEfficient preparation of all cellulose composite films using a plasticizing-rolling method, HPLC of Formula: 79917-90-1, the publication is Composites, Part A: Applied Science and Manufacturing (2022), 106968, database is CAplus.

Efficient manufacturing cellulose is a promising solution to solve severe environmental problems resulted from non-degradable plastics. Herein, we propose a plasticizing-rolling technique to manufacture cellulose featuring high cellulose ratios (50 weight%) and low temperature (65°C). Plasticization effect from plasticizers (BmimCl and LiCl) uniformly plasticizes cellulose while shear effect from rolling destroys the crystal area of cellulose, both increasing the mobility of cellulosic mol. chains. SEM images and XRD anal. reveal prepared films are all cellulose composite (ACC), cellulose I in the core area and cellulose II in the surface area. ACC films have high transparency (81%), tensile strength (73.6 ± 4.8 MPa), and thermal stability. The relationship of structure and properties of ACC films was also discussed and a particle-matrix composite model was proposed to analyze high transparency of ACC films. In conclusion, the proposed method presents a potential to efficiently produce high-performance cellulose materials at large scale.

Composites, Part A: Applied Science and Manufacturing 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, HPLC of Formula: 79917-90-1.

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