Tag: M.W=250-300

Hu, Bei published the artcileTandem Photocatalysis: An Efficient Synthesis of Multisubstituted Benzimidazoles by Visible-Light-Induced Intramolecular Cyclization and Deprotection, Formula: C19H14N2, the publication is Asian Journal of Organic Chemistry (2016), 5(12), 1467-1470, database is CAplus.

An unprecedented tandem photocatalysis protocol consists of two distinct photocatalytic cycles. This method allowed for rapid and efficient construction of multisubstituted benzimidazole derivatives through an intramol. cyclization and deprotection sequence from diamines under very mild conditions.

Asian 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, Formula: C19H14N2.

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

Wen, Simiaomiao published the artcileAccess to 2-Arylquinazolin-4(3H)-ones through Intramolecular Oxidative C(sp³)-H/N-H Cross-Coupling Mediated by I₂/DMSO, Recommanded Product: 1,2-Diphenyl-1H-benzo[d]imidazole, the publication is European Journal of Organic Chemistry (2022), 2022(4), e202101187, database is CAplus.

A novel approach for the synthesis of 2-arylquinazolin-4(3H)-ones was developed. A series of title compounds were obtained with good functional group tolerance and good yields by I₂/DMSO-mediated intramol. oxidative cross-coupling of 2-(benzylamino)benzamides to form C=N double bonds. This method was applicable for gram-scale synthesis. A proposed reaction pathway based on some control experiments was also provided.

European 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 C8H7NO4, Recommanded Product: 1,2-Diphenyl-1H-benzo[d]imidazole.

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

Li, Hui published the artcileSynthesis, characterization and electrophosphorescent properties of mononuclear platinum(II) complexes based on 2-phenylbenzoimidazole derivatives, Computed Properties of 2622-67-5, the publication is Journal of Organometallic Chemistry (2009), 694(17), 2777-2785, database is CAplus.

The rational design, synthesis and characterization of five phosphorescent Pt complexes [(CÑ)Pt(acac)] [Hacac = acetylacetone, HCÑ = 1-methyl-2-(4-fluorophenyl)benzoimidazole (H-FMBI), 1-methyl-2-phenylbenzoimidazole (H-MBI), 1,2-diphenyl-benzoimidazole (H-PBI), 1-(4-(3,6-di-t-butylcarbazol-9-yl))phenyl-2-phenylbenzoimidazole (t-BuCz-H-PBI), and 1-(4-(3,6-di-(3,6-di-t-butyl-carbazol-9-yl))carbazol-9-yl)phenyl-2-phenylbenzoimidazole (t-BuCzCz-H-PBI)] are discussed. The crystal structure of (MBI)Pt(acac) shows a nearly ideal square planar geometry around the Pt atom and weak intermol. interactions with π-π spacing of 3.55 Å. All of the complexes emit green phosphorescence from the metal-to-ligand charge-transfer (MLCT) excited state with high quantum efficiency (0.08-0.17) at room temperature A multilayer organic light-emitting diode (OLED) with (MBI)Pt(acac) as phosphorescent dopant was fabricated using the method of high-vacuum thermal evaporation, which gives a maximum brightness, luminous and power efficiency of 13,605 cd/m², 15.1 cd/A and 4.3 lm/W, resp. In contrast, a comparable performance can be achieved in the solution-processed OLED based on (t-BuCzPBI)Pt(acac) with a peak brightness, luminous and power efficiency of 13,606 cd/m², 17.5 cd/A and 8.4 lm/W, resp. The better device efficiency results from the good square plane of the central Pt coordination unit and the inhibition of aggregates due to bulky and rigid t-butylcarbazole dendrons.

Journal of Organometallic 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, Computed Properties of 2622-67-5.

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

Cao, Hong-Tao published the artcileA sulfur-free iridium(III) complex for highly selective and multi-signaling mercury(II)-chemosensors, COA of Formula: C19H14N2, the publication is Dalton Transactions (2015), 44(46), 19997-20003, database is CAplus and MEDLINE.

A sulfur-free iridium(III) complex (pbi)₂Ir(mtpy) (1) was successfully prepared and adopted as a Hg(II)-chemosensor with high selectivity and sensitivity. Multi-signaling responses towards Hg(II) ions were observed by UV-vis absorption, phosphorescence and electrochem. measurements. With addition of Hg(II) ions, complex 1 presented quenched emission in its phosphorescence spectrum and the detection limit was as low as 2.5 × 10^-7 M. Addnl., its redox peak currents showed a broad linear relationship with the concentration of Hg(II) ions ranging from 0 to 500 μM, which was beneficial for the quant. detection. Based on the ¹H NMR and ESI-MS analyses, the probing mechanism was tentatively supposed to be the Hg²⁺-induced changes in the local environment of complex 1. Such a response process was useful for achieving simple and effective detection of Hg(II) ions as well as developing more chemosensors.

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, COA of Formula: C19H14N2.

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

Lee, Ye-Sol published the artcileSignificant facilitation of metal-free aerobic oxidative cyclization of imines with water in synthesis of benzimidazoles, Category: imidazoles-derivatives, the publication is Tetrahedron (2015), 71(4), 532-538, database is CAplus.

A simple, convenient, and environmentally benign protocol for the synthesis of benzimidazoles from ortho-phenylenediamines and aldehydes via aerobic oxidation was developed in wet organic solvents. Notably, water significantly accelerated this transformation, which allowed us to achieve this important transformation without the assistance of any metal catalysts and other co-oxidants. Mechanistic studies suggested that water acts as the nucleophilic catalyst for this transformation by the conversion of disfavored 5-endo-trig cyclization of imines to favored 5-exo-tet cyclization via tetrahedral intermediates and the subsequent aerobic oxidation of the resulting benzimidazolines affords benzimidazoles.

Tetrahedron 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

Chen, Wei published the artcileOne-pot synthesis of 1,2-diphenyl-1H-imidazole derivatives catalyzed by CuI, Safety of 1,2-Diphenyl-1H-benzo[d]imidazole, the publication is Huaxue Shiji (2011), 33(7), 603-606, database is CAplus.

A new strategy for one step synthesis of 1,2-diphenyl-1H-imidazole derivatives, using CuI to catalyze the C-N and C-C coupling reaction, was described. This method is economical, cost efficient, and harmless. Structures of the products were characterized by ¹H-NMR, ¹³C-NMR, MS spectra and elemental anal.

Huaxue Shiji 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

Sun, Manman published the artcileOne-pot synthesis of 1,2-diphenyl-1H-benzo[d]imidazole derivatives by a Pd-catalyzed N-arylation and Cu-catalyzed C-H functionalization/C-N bond formation process, Application In Synthesis of 2622-67-5, the publication is RSC Advances (2014), 4(88), 47373-47376, database is CAplus.

A one-pot synthesis of 1,2-diaryl-1H-benzo[d]imidazole derivatives starting from N-arylbenzamidines and iodobenzenes or bromobenzenes was introduced. The process consisted of a Pd-catalyzed N-arylation and a Cu-catalyzed C-H functionalization/C-N bond formation.

RSC Advances 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 C25H23NO4, Application In Synthesis of 2622-67-5.

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

Zhao, Gongyuan published the artcilePalladium(II)-Catalyzed Sequential C-H Arylation/Aerobic Oxidative C-H Amination: One-Pot Synthesis of Benzimidazole-Fused Phenanthridines from 2-Arylbenzimidazoles and Aryl Halides, Recommanded Product: 1,2-Diphenyl-1H-benzo[d]imidazole, the publication is Journal of Organic Chemistry (2015), 80(5), 2827-2834, database is CAplus and MEDLINE.

Starting from 2-arylbenzimidazoles and aryl halides, an efficient palladium-based catalytic method for the synthesis of benzimidazole-fused phenanthridines, e.g., I, has been developed. This reaction sequence is comprised of an intermol. C-H arylation and intramol. aerobic oxidative C-H amination, which involved the rupture of two C-H bonds, one C-X bond, and one N-H bond in one pot. The Pd^II-Pd^IV-Pd^II and Pd^II-Pd⁰-Pd^II catalytic cycles worked together under the reported conditions to generate phenanthridines with diverse substituents.

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 C8H14O4, Recommanded Product: 1,2-Diphenyl-1H-benzo[d]imidazole.

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

Zhu, Shengbo published the artcileUnclogging electron-transporting channels via self-assembly for improving light harvesting and stability of dye-sensitized solar cells, Quality Control of 2622-67-5, the publication is Electrochimica Acta (2019), 518-530, database is CAplus.

Two nitrogen-rich heterocycle donor dyes, NP-2 and NP-3, have been strategically designed and synthesized to construct functionalized self-assembly layers. Through the formation of N···H hydrogen bonds between these nitrogen-rich heterocycle donors and 4-tert-butylbenzoic acid (PTBBA), the electron leak points (imine group (-N=)) may be plugged, thus blocking excited-state electron lateral transferring between the adsorbed dyes and electron leaking from electron-transporting channel into the electrolyte. Furthermore, the huge 3-dimensional sizes of such supramol. sensitizers can not only suppress dye aggregation, but enhance the photoresponse capacity in visible region. Therefore, the devices based on NP-2@PTBBA and NP-3@PTBBA, which obtained by the cocktail sensitization procedures, can be improved by increasing the open-circuit photovoltage (V_oc) without any loss of the short-circuit photocurrent d. (J_sc) owing to the synergy effect between self-assembly and co-sensitization. Although the device based on NP-3/PTBBA via the stepwise sensitization procedure delivers lower efficiency, it can remain at 103.14% of the initial efficiency as a result of parallel increase in J_sc and V_oc values. Overall, the design principles provide a clear road map of supramol. dye-sensitized solar cells (SDSSCs) and demonstrate the potential of 1,3,5-triazine-based dyes in solar cells research.

Electrochimica Acta 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 C4H5F3O, Quality Control of 2622-67-5.

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

Yang, Qi published the artcileA simple phenylation of heteroaromatic compounds using diphenyliodonium triflate, Category: imidazoles-derivatives, the publication is Research on Chemical Intermediates (2012), 38(7), 1335-1340, database is CAplus.

2-Ph heteroaromatic arenes I (Y = S, NH, NMe, NC₆H₅, O; X = CH, N) were prepared by phenylation of heteroaromatic compounds with diphenyliodonium trifluoromethanesulfonate as oxidant in the presence of 5 mol% Pd(OAc)₂ catalyst under mild reaction conditions (THF, 60°, 24 h). The proposed reaction mechanism was studied by HPLC.

Research on Chemical Intermediates 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 C8H8O3, Category: imidazoles-derivatives.

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