Category: 2622-67-5

Selvam, K. published the artcileAn easy one-step photocatalytic synthesis of 1-aryl-2-alkylbenzimidazoles by platinum loaded TiO₂ nanoparticles under UV and solar light, Application of 1,2-Diphenyl-1H-benzo[d]imidazole, the publication is Tetrahedron Letters (2011), 52(26), 3386-3392, database is CAplus.

One-pot synthesis of disubstituted benzimidazoles from N-substituted 2-nitroanilines or 1,2-diamines with 3-12 nm-sized platinum particles loaded on the TiO₂ using solar and UV-A light is described. 1-Aryl-2-alkylbenzimidazoles from 2-nitrodiphenylamines are formed by combined redox photocatalytic reaction, condensation and catalytic dehydrogenation on Pt-TiO₂. In case of diamines, this reaction is proceeded by Pt-TiO₂ assisted photocatalytic oxidation of an alc. and a catalytic dehydrogenation of the intermediate on the surface of platinum nanoparticles. In both cases product formation was achieved by tandem photocatalytic and catalytic reactions on Pt-TiO₂.

Tetrahedron 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 C48H47FeP, Application of 1,2-Diphenyl-1H-benzo[d]imidazole.

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

Guan, Qianqian published the artcileThe synthesis of benzimidazoles via a recycled palladium catalyzed hydrogen transfer under mild conditions, Safety of 1,2-Diphenyl-1H-benzo[d]imidazole, the publication is Organic & Biomolecular Chemistry (2018), 16(12), 2088-2096, database is CAplus and MEDLINE.

An efficient synthesis of benzimidazoles I [R¹ = Me, Ph, 2-thienyl, etc.; R² = H, Me, CF₃; R³ = H, Me, Ph, 2-pyridyl, 3-Me-2-pyridyl] was developed via recycled palladium-catalyzed hydrogen-transfer reaction of N-substituted-2-nitroanilines and alcs. The reaction was carried out smoothly under mild conditions that afforded variety of benzimidazoles I with good to excellent yields. The palladium catalyst was recovered easily and reused six times with great catalytic activity.

Organic & Biomolecular 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, Safety of 1,2-Diphenyl-1H-benzo[d]imidazole.

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

Cao, Hongtao published the artcileIridium(III) complexes adopting 1,2-diphenyl-1H-benzoimidazole ligands for highly efficient organic light-emitting diodes with low efficiency roll-off and non-doped feature, SDS of cas: 2622-67-5, the publication is Journal of Materials Chemistry C: Materials for Optical and Electronic Devices (2014), 2(12), 2150-2159, database is CAplus.

Two novel Ir(III) complexes (pbi)₂Ir(mtpy) (1) and (pbi)₂Ir(pbim) (2) adopting 1,2-diphenyl-1H-benzoimidazole (Hpbi) as cyclometalated ligands were synthesized and characterized. Strong emissions at 501 and 536 nm with high luminescence quantum yields of 48 and 91% in CH₂Cl₂ at 298 K were obtained for 1 and 2, resp. The quantum chem. calculations and the photophys. properties indicated that the dominant ³MLCT (metal-to-ligand charge-transfer) state mixed with ³LLCT (ligand-to-ligand charge-transfer) and ³LC (ligand-centered ³π-π^*) characters contributed to their phosphorescence emissions. Doped organic LEDs (OLEDs) based on 1 and 2 showed a peak current efficiency of 45.0 cd A^-1 and power efficiency of 47.9 lm W^-1 accompanied by low efficiency roll-off values. In their nondoped OLEDs, high efficiencies of 24.4 cd A^-1 and 26.3 lm W^-1 were achieved. These appealing results reveal that 1 and 2 open interesting perspectives for the development of high-performance OLEDs in the future.

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, SDS of cas: 2622-67-5.

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

Zeng, Run-Sheng published the artcileSynthesis of 1,2-diphenyl-1H-benzimidazole derivatives by an iodobenzene diacetate-mediated reaction of N,N’-diphenylbenzamidine derivatives, Category: imidazoles-derivatives, the publication is Youji Huaxue (2008), 28(3), 476-478, database is CAplus.

1,2-Phenyl-1H-benzimidazole derivatives were prepared by the reaction of iodobenzene diacetate with N,N’-diarybenzamidine derivatives in moderate yields at room temperature with simple manipulation. All the products were confirmed by ¹H NMR, ¹³C NMR, MS and IR spectra. A possible reaction mechanism was proposed.

Youji Huaxue 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 C6H20Cl2N4, Category: imidazoles-derivatives.

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

Cao, Hong-Tao published the artcileModification of iridium(III) complexes for fabrication of high-performance non-doped organic light-emitting diode, COA of Formula: C19H14N2, the publication is Dyes and Pigments (2015), 8-16, database is CAplus.

Four novel Ir(III) complexes containing 1,2-diphenyl-1H-benzoimidazole as cyclometalated ligands were synthesized and characterized. The complexes displayed strong emissions around 492 nm with high luminescence quantum yields of 70-92% in CH₂Cl₂ solution at 298 K. Doped OLEDs based on the complexes were prepared, which showed a peak current efficiency of 34.5 cd A^-1, power efficiency of 40.1 lm W^-1. Nondoped OLEDs using the complexes as emitters were then fabricated for further study of their electroluminescence properties. One nondoped device possessed outstanding performance with a maximum current efficiency of 19.8 cd A^-1 and power efficiency of 20.4 lm W^-1 while simultaneously displaying low efficiency roll-off at high luminance.

Dyes and Pigments 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, COA of Formula: C19H14N2.

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

Cao, Hong-Tao published the artcileEnhanced quantum efficiency of cationic iridium(III) complexes with carbazole moiety as a steric hindrance unit, Safety of 1,2-Diphenyl-1H-benzo[d]imidazole, the publication is Journal of Molecular Structure (2012), 59-64, database is CAplus.

Two cationic iridium(III) complexes with different degrees of steric hindrance, namely, [Ir(L1)₂(bpy)]PF₆ (1) and [Ir(L2)₂(bpy)]PF₆ (2) (where HL1, HL2 and bpy ligands are 1,2-diphenylbenzo[d]imidazole, 9-(4-(2-phenylbenzo[d]imidazol-1-yl)phenyl)-9H-carbazole and 2,2′-bipyridine, resp.), have been designed and synthesized. Photoluminescence measurements show that the photoluminescence quantum yield of complex 2 with the introduction of carbazole moieties as steric hindrance units is up to 36% in the neat film, which is obviously higher than that (27%) of the model complex 1. On basis of the quantum calculations and photophys. data, we conclude that the carbazole moieties effectively reduce the intermol. interaction by enhancing the steric hindrance of the complex, which inhibits the quenching process without altering the nature of the excited-state. In addition, the results of thermogravimetric anal. (TGA) and cyclic voltammetry (CV) measurements reveal that complexes 1 and 2 have potential applications in electroluminescent devices.

Journal of Molecular Structure 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

Cao, Hongtao published the artcileAn orange iridium(III) complex with wide-bandwidth in electroluminescence for fabrication of high-quality white organic light-emitting diodes, Computed Properties of 2622-67-5, the publication is Journal of Materials Chemistry C: Materials for Optical and Electronic Devices (2013), 1(44), 7371-7379, database is CAplus.

A novel Ir(III) (pbi)₂Ir(biq) with a strong orange emission at 573 nm was synthesized, which showed a high luminescence quantum yield (PLQY) of 45% in CH₂Cl₂ at 298 K. The quantum chem. calculations together with the photophys. properties indicated that the transition incorporation of ³MLCT (metal-to-ligand charge transfer), ³LLCT (ligand-to-ligand charge transfer) mixed with ³LC (ligand-centered ³π-π^*) characters contributed to the emission of (pbi)₂Ir(biq). Cyclic voltammetry (CV), TGA and DSC were then performed to study its electrochem. and thermal properties for fabrication of electroluminescent devices. (pbi)₂Ir(biq) exhibited wide-bandwidth in electroluminescence (EL) of its orange electroluminescent devices, which made it effectively available to fabricate high-quality two-element white organic LEDs (WOLEDs). The resultant WOLED possessed a high current efficiency (η_c) of 22.1 cd A^-1 and power efficiency (η_p) of 25.5 lm W^-1 with a high color rendering index (CRI) of 80. The WOLED retained a favorable η_p of 10.9 lm W^-1 and η_c of 16 cd A^-1 at a high luminance of 1000 cd m^-2. This WOLED exhibited a qualified R9 of 13 and Duv of -0.0013, and these values together with the high CRI conformed to the required standard for lamp illumination of the ENERGY STAR.

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, Computed Properties of 2622-67-5.

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

Sutar, Suraj M. published the artcilePalladium Catalyzed Electrophilic C2-Arylation of Azoles by Aryltriazenes in Ionic Liquid Promoted by Acidic Ionic Liquid, Quality Control of 2622-67-5, the publication is ChemistrySelect (2020), 5(39), 12324-12327, database is CAplus.

A green C-H bond activation of azole based bio-pertinent substrates such as benzoxazole, benzothiazole, benzimidazole, etc. are accomplished using readily prepared 1-aryltriazenes RN=NNR¹R² (R = C₆H₅, 4-CH₃C₆H₄, 4-ClC₆H₄, etc.; R¹ = R² = Et; R¹R² = -(CH₂)₅-, -(CH₂)₂O(CH₂)₂-) as arylating agent. Under an optimized condition employing Pd(OAc)₂ and CuI in either hydrophilic [Bmim][BF₄] or hydrophobic [Bmim][PF₆] IL medium with [BMIM(SO₃H)][OTf] as a promoter, these arylation reactions proceeded smoothly to afford 2-aryl substituted azoles I (X = O, S, NCH₃, NC₆H₅, 4-CH₃C₆H₄N; R³ = H, Me; R⁴ = H, NH₂, Cl, CH₃) and 2-(p-tolyl)thiazole in acceptable to better yields besides noticeable functional group tolerance. The prospective for recovery and re-use of ionic liquid solvent is demonstrated.

ChemistrySelect 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 C9H11BO4, Quality Control of 2622-67-5.

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

Wang, Ying published the artcileA simple and efficient one step synthesis of benzoxazoles and benzimidazoles from carboxylic acids, Recommanded Product: 1,2-Diphenyl-1H-benzo[d]imidazole, the publication is Tetrahedron Letters (2006), 47(28), 4823-4826, database is CAplus.

Benzoxazoles or benzimidazoles can be rapidly and efficiently synthesized from a variety of carboxylic acids with 2-aminophenols or 1,2-phenylenediamines in one simple step, resp. The use of com. available PS-PPh₃ resin combined with microwave heating delivered a variety of benzoxazoles and benzimidazoles in high yields and purities.

Tetrahedron 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 C16H18Br2ClN3O3, Recommanded Product: 1,2-Diphenyl-1H-benzo[d]imidazole.

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

Kumar, Manoranjan published the artcileIron(III) Chloride-Catalyzed Decarboxylative-Deaminative Functionalization of Phenylglycine: A Tandem Synthesis of Quinazolinones and Benzimidazoles, Quality Control of 2622-67-5, the publication is Advanced Synthesis & Catalysis (2015), 357(13), 2862-2868, database is CAplus.

The first iron(III) chloride-catalyzed decarboxylative-deaminative functionalization of phenylglycine with o-substituted nitroarenes was achieved for the synthesis of 4(3H)-quinazolinones and benzimidazoles. The reaction of 2-nitrobenzonitrile/2-nitro-N,N-diphenylamine with phenylglycine at 120 C in the presence of potassium carbonate as a base in toluene generated the products in 45-87% yields. Various functional groups like nitro, fluoride, chloride and trifluoromethyl were well tolerated under the present reaction conditions. In this tandem approach, involvement of transfer hydrogenation of the nitro functionality with in situ generated ammonia, imination, nitrile hydration to amide and oxidative cyclization sequences have been established. The process avoids the use of an external hydrogen source, costly catalysts as well as the isolation of amine and amide intermediates.

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, Quality Control of 2622-67-5.

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