Imidazoles-derivatives

Yao, Wei-Wei published the artcileNi-catalyzed hydroaminoalkylation of alkynes with amines, Name: 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, the publication is Nature Communications (2021), 12(1), 3800, database is CAplus and MEDLINE.

Here, a late transition metal Ni-catalyzed hydroaminoalkylation of alkynes RCCR¹ (R = Me, n-Bu, Ph, 4-methoxyphenyl, etc.; R¹ = Me, i-Pr, TMS, 4-ethylphenyl, etc.) with N-sulfonyl amines R²CH₂NHR³ (R² = pentyl, cyclohexyl, Ph, thiophen-2-yl, 2H-1,3-benzodioxol-5-yl, etc.; R³ = Ms, Ts, [2,4,6-tris(propan-2-yl)phenyl]sulfonyl, etc.), providing a series of allylic amines R²CH(NHR³)C(=CHR¹)(R) in up to 94% yield was reported. Double ligands of N-heterocyclic carbene (IPr) and tricyclohexylphosphine (PCy₃) effectively promote the reaction.

Nature Communications 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 C5H11NO2S, Name: 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride.

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

Yu, Yong published the artcileSynthesis of sodium esomeprazole, SDS of cas: 161796-78-7, the publication is Huaxue Yanjiu Yu Yingyong (2014), 26(4), 591-595, database is CAplus.

Esomeprazole sodium was synthesized through asym. oxidation reaction, and the synthesis process route was optimized. The ufiprazole was prepared firstly, which was then oxidized to form esomeprazole. Finally, the esomeprazole sodium was prepared by reaction of esomeprazole with sodium hydroxide. The overall yield was 57.2%. The structures of target compounds were characterized by IR, ¹H NMR and MS.

Huaxue Yanjiu Yu Yingyong published new progress about 161796-78-7. 161796-78-7 belongs to imidazoles-derivatives, auxiliary class Membrane Transporter/Ion Channel,Proton Pump, name is Sodium (S)-6-methoxy-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)benzo[d]imidazol-1-ide, and the molecular formula is C19H21N3O3S, SDS of cas: 161796-78-7.

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

Jiao, Yan published the artcileA facile color-tuning strategy for constructing a library of Ir(III) complexes with fine-tuned phosphorescence from bluish green to red using a synergetic substituent effect of -OCH₃ and -CN at only the C-ring of CN̂ ligand, Safety of 1,2-Diphenyl-1H-benzo[d]imidazole, the publication is Journal of Materials Chemistry C: Materials for Optical and Electronic Devices (2016), 4(19), 4269-4277, database is CAplus.

By simply grafting a -CN group and/or a -OCH₃ group onto the meta- and/or para-site of the C-ring, a series of Ir(III) complexes bearing a similar mol. platform of bis(1,2-diphenyl-1H-benzimidazolato-N,C^2′)iridium(III)(acetylacetonate), but showing fine-tuned phosphorescence covering nearly the whole window of the visible spectrum with a wide color-tuning range of 109 nm was acquired. With the help of DFT calculations, it was revealed that if the C-related arene moiety of the CN̂ ligand (C-ring) contributes substantially to both the HOMO and LUMO of an Ir(III) complex, the concurrent introduction of an electron-donating -OCH₃ and an electron-withdrawing -CN groups on the C-ring at the meta- and para-sites relative to the Ir atom may lead to a favorable synergetic substituent effect on the color-tuning direction. This may represent a facile yet effective mol. design strategy for Ir(III) complexes with a desirous emission color. A bluish green organic light-emitting diode (OLED) based on one of the objective complexes displayed a maximum current efficiency of 62.1 cd A^-1, an external quantum efficiency of 19.8%, and a brightness of 48 040 cd m^-2, implying that high-performance red and blue OLED phosphors as well as libraries of Ir(III) complexes bearing similar mol. platforms may be developed through this -OCH₃ and -CN synergetic substitution strategy.

Journal of Materials Chemistry C: Materials for Optical and Electronic Devices 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

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

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

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

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

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

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

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