Tag: M.W=250-300

Chakrabarty, Manas published the artcileA Keggin heteropoly acid as an efficient catalyst for an expeditious, one-pot synthesis of 1-methyl-2-(hetero)arylbenzimidazoles, Application In Synthesis of 2622-67-5, the publication is Tetrahedron Letters (2007), 48(30), 5239-5242, database is CAplus.

The Keggin heteropoly acid, silicotungstic acid, H₄SiW₁₂O₄₀, was demonstrated to be highly efficient for an expeditious, one-pot synthesis of arylbenzimidazoles, e.g., I, from N-methyl-1,2-benzenediamine and arylaldehydes in Et acetate at room temperature The catalyst worked equally well for N-phenyl-1,2-benzenediamine.

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 C19H14N2, Application In Synthesis of 2622-67-5.

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

Gaber, Abd El-Aal M. published the artcileThermal fragmentation and rearrangement of 3-phenyl-4-aryl-5-phenylimino-1,2,4-oxadiazoline derivatives, Category: imidazoles-derivatives, the publication is Afinidad (2009), 66(541), 252-257, database is CAplus.

Thermal fragmentation of 3-phenyl-4-aryl-5-phenylimino-1,2,4-oxadiazolines I and II (Ar = Ph, p-tolyl) in a sealed tube under nitrogen gives rise to benzonitrile, arylamines, anilides, phenols, arylureas, and benzimidazole derivatives In the presence of naphthalene as solvent, I gave a- and P-naphthols beside the previous products. Also, heating of I under reflux in boiling anhydrous tetraline leads to the formation of 1-hydroxytetraline, α-tetralone and 1,1′-bi-tetralyl as the major products. The isolated products have been interpreted in terms of a free radical mechanism involving the homolysis of N-O and/or C-N bond.

Afinidad 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, Category: imidazoles-derivatives.

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

Nguyen, Thanh Binh published the artcileSulfur-Catalyzed Oxidative Coupling of Dibenzyl Disulfides with Amines: Access to Thioamides and Aza Heterocycles, COA of Formula: C19H14N2, the publication is Advanced Synthesis & Catalysis (2019), 361(8), 1787-1791, database is CAplus.

In the presence of catalytic amounts of elemental sulfur, dibenzyl disulfide/DMSO was found to be an excellent thiobenzoylating agent of amines to provide a wide range of thioamides. The reaction becomes autocatalytic when anilines substituted by an o-cyclizable group were used as nucleophile, leading to the corresponding 2-aryl aza heterocycles.

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, COA of Formula: C19H14N2.

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

Lavrova, Maria A. published the artcileCyclometalated Ru(II) complexes with tunable redox and optical properties for dye-sensitized solar cells, SDS of cas: 2622-67-5, the publication is Dalton Transactions (2020), 49(46), 16935-16945, database is CAplus and MEDLINE.

Cyclometalated Ru(II) complexes with 2-arylbenzimidazole antenna ligands bearing electron-donor/withdrawing substituents and anchoring 4,4-dimethoxycarbonyl-2,2-bipyridine have been prepared and their structure, optical and electrochem. properties have been studied. The complexes possess enhanced light-harvesting characteristics compared to those of the standard N719 dye and absorb light up to 750 nm. In addition, they demonstrate reversible redox behavior with Ru³⁺/Ru²⁺ potentials being finely tuned by the change of the electron-donating ability of cyclometalated ligands. After a mild hydrolysis of dimethoxycarbonyl groups the excellent optical properties of the complexes remain unchanged and they show good efficiency when tested in dye-sensitized solar cells.

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 C19H14N2, SDS of cas: 2622-67-5.

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

Deng, Xiaohu published the artcileCuI-catalyzed amination of arylhalides with guanidines or amidines: a facile synthesis of 1-H-2-substituted benzimidazoles, Product Details of C19H14N2, the publication is Journal of Organic Chemistry (2009), 74(15), 5742-5745, database is CAplus and MEDLINE.

CuI/N,N’-dimethylethylenediamine proves to be an efficient catalyst system for the amination of arylhalides with guanidines. The same catalyst system is then successfully applied to the one-step synthesis of 1-H-2-amino-benzimidazoles through tandem aminations of 1,2-dihaloarenes in modest yields. This methodol. is also applicable for the preparation of 1-H or 1-substituted 2-aryl- or 2-alkyl-benzimidazoles.

Journal of Organic 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, Product Details of C19H14N2.

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

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

Qian, He-Sheng published the artcileAnalysis of pyrolyzates for polysulphoneamide fiber by Py-GC/MS, Related Products of imidazoles-derivatives, the publication is Journal of Donghua University (2006), 23(2), 63-67, database is CAplus.

Pyrolysis of polysulfoneamide fiber has been investigated using pyrolysis gas chromatog.-mass spectroscopy at the different temperatures from 420°C to 750°C. Its compositions of pyrolyzates have been analyzed. At 420°C, pyrolysis of mol. chain could not completely take place, 12 compounds of pyrolysis have only been identified. When the temperature increases, the compositions of pyrolyzate increase sharply. Several compounds, especially sulfur dioxide, benzene, aniline, benzoic acid, 1,4-benzene dicaronitrile, N-phenyl-acetamide, diphenylamine, benzo[g]isoquinoline, N-phenyl-benzamide, N-(4-cyanophenyl)benzamide, could be formed. The degradation mechanisms which are determined by structure and amount of the thermal decomposition products are described. During pyrolysis, for polysulfoneamide, polymeric chain scissions take place as a successive removal of the monomer units from the polymeric chain. The chain scissions are followed by secondary reactions, which lead to a variety of compounds Addnl. reactions can also take place during pyrolysis.

Journal of Donghua University 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, Related Products of imidazoles-derivatives.

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

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