Tag: M.W=250-300

Hikawa, Hidemasa’s team published research in Asian Journal of Organic Chemistry in 7 | CAS: 2622-67-5

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.

Hikawa, Hidemasa published the artcilePalladium-Catalyzed Dehydrogenation of Benzyl Alcohols for Construction of 2-Arylbenzimidazoles ”On Water”, Formula: C19H14N2, the publication is Asian Journal of Organic Chemistry (2018), 7(2), 416-423, database is CAplus.

An ”on water” synthetic strategy for the selective construction of 2-arylbenzimidazoles involving the dehydrogenation of benzyl alcs. by a π-benzylpalladium(II) system was developed. This simple oxidant- and base-free protocol was achieved under mild conditions in an atom-economic process from o-phenylenediamines and benzyl alcs., affording the desired products in moderate to excellent yields. Notably, the ”on water” protocol was essential for achieving this synthetic method in this catalytic system.

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

Alonso, Jorge’s team published research in European Journal of Organic Chemistry in | CAS: 2622-67-5

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 C19H14N2, Product Details of C19H14N2.

Alonso, Jorge published the artcileA Direct, Regioselective Palladium-Catalyzed Synthesis of N-Substituted Benzimidazoles and Imidazopyridines, Product Details of C19H14N2, the publication is European Journal of Organic Chemistry (2011), 234-237, S234/1-S234/9, database is CAplus.

Unsym., N-substituted benzimidazoles and imidazopyridines can be prepared directly from 2-halonitroarenes and amides through Pd(TFA)2/(R)-BINAP-catalyzed cross-coupling and subsequent reductive aminocyclization. This sequence can be conducted by a one-pot procedure. The method is versatile and allows the straightforward, regioselective preparation of these important nitrogen heterocycles.

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 C19H14N2, Product Details of C19H14N2.

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

Muto, Kei’s team published research in Chemical Science in 6 | CAS: 2622-67-5

Chemical Science 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.

Muto, Kei published the artcileC-H arylation and alkenylation of imidazoles by nickel catalysis: solvent-accelerated imidazole C-H activation, Application In Synthesis of 2622-67-5, the publication is Chemical Science (2015), 6(12), 6792-6798, database is CAplus and MEDLINE.

The first nickel-catalyzed C-H arylations and alkenylations of imidazoles with phenol and enol derivatives are described. Under the influence of Ni(OTf)2/dcype/K3PO4 (dcype: 1,2-bis(dicyclohexylphosphino)ethane) in t-amyl alc., imidazoles can undergo C-H arylation with phenol derivatives The C-H arylation of imidazoles with chloroarenes as well as that of thiazoles and oxazoles with phenol derivatives can also be achieved with this catalytic system. By changing the ligand to dcypt (3,4-bis(dicyclohexylphosphino)thiophene), enol derivatives could also be employed as coupling partners achieving the C-H alkenylation of imidazoles as well as thiazoles and oxazoles. Thus, a range of C2-arylated and alkenylated azoles can be synthesized using this newly developed nickel-based catalytic system. The key to the success of the C-H coupling of imidazoles is the use of a tertiary alc. as solvent. This also allows the use of an air-stable nickel(II) salt as the catalyst precursor.

Chemical Science 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

Peng, Xiao-Chong’s team published research in Catalysts in 10 | CAS: 2622-67-5

Catalysts 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 of 1,2-Diphenyl-1H-benzo[d]imidazole.

Peng, Xiao-Chong published the artcileActivated carbon supported hafnium(IV) chloride as an efficient, recyclable, and facile removable catalyst for expeditious parallel synthesis of benzimidazoles, Application of 1,2-Diphenyl-1H-benzo[d]imidazole, the publication is Catalysts (2020), 10(4), 436, database is CAplus.

A highly efficient method for parallel synthesis of a diversity of 1,2-disubstituted benzimidazoles from N-substituted phenylenediamines and aldehydes has been developed by using 10 mol% HfCl4 on activated carbon (HfCl4/C) as the catalyst. The newly reported HfCl4/C catalyst not only mediated fast and clean formation of benzimidazoles but also could be easily removed from the reaction solution and reused up to eight times. Scanning electron microscope (SEM) and thermal desorption studies showed that activated carbon could reversibly adsorb and release Hf(IV) in ethanol upon cooling and heating, thereby serving as a thermal-controlled solid support.

Catalysts 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 of 1,2-Diphenyl-1H-benzo[d]imidazole.

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

Luo, Ching-Zong’s team published research in Chemistry – A European Journal in 19 | CAS: 2622-67-5

Chemistry – A European Journal 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.

Luo, Ching-Zong published the artcileRhIII-catalyzed C-H activation: a versatile route towards various polycyclic pyridinium salts, Quality Control of 2622-67-5, the publication is Chemistry – A European Journal (2013), 19(42), 14181-14186, database is CAplus and MEDLINE.

An efficient and convenient method for the synthesis of highly substituted polycyclic pyridinium salts from the reaction of various 2-aryl-pyridines and 2-aryl-sp2-nitrogen-atom-containing heterocycles with alkynes through rhodium(III)-catalyzed C-H activation and annulation under an O2 atmosphere is described. A possible mechanism that involves the chelation-assisted C-H activation of the 2-aryl-pyridine substrate, insertion of the alkyne, and reductive elimination is proposed. This mechanism was supported by the isolation of a five-membered rhodacycle (I’). In addition, kinetic isotope studies were performed to understand the intimate reaction mechanism.

Chemistry – A European Journal 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

Luo, Ching-Zong’s team published research in Chemistry – A European Journal in 19 | CAS: 2622-67-5

Chemistry – A European Journal 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.

Luo, Ching-Zong published the artcileRhIII-catalyzed C-H activation: a versatile route towards various polycyclic pyridinium salts, Quality Control of 2622-67-5, the publication is Chemistry – A European Journal (2013), 19(42), 14181-14186, database is CAplus and MEDLINE.

An efficient and convenient method for the synthesis of highly substituted polycyclic pyridinium salts from the reaction of various 2-aryl-pyridines and 2-aryl-sp2-nitrogen-atom-containing heterocycles with alkynes through rhodium(III)-catalyzed C-H activation and annulation under an O2 atmosphere is described. A possible mechanism that involves the chelation-assisted C-H activation of the 2-aryl-pyridine substrate, insertion of the alkyne, and reductive elimination is proposed. This mechanism was supported by the isolation of a five-membered rhodacycle (I’). In addition, kinetic isotope studies were performed to understand the intimate reaction mechanism.

Chemistry – A European Journal 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

Zurita, Daniel A.’s team published research in Dalton Transactions in 45 | CAS: 2622-67-5

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 C22H23ClN4, Computed Properties of 2622-67-5.

Zurita, Daniel A. published the artcileCatalytic transfer hydrogenation of azobenzene by low-valent nickel complexes: a route to 1,2-disubstituted benzimidazoles and 2,4,5-trisubstituted imidazolines, Computed Properties of 2622-67-5, the publication is Dalton Transactions (2016), 45(25), 10389-10401, database is CAplus and MEDLINE.

The 1-pot synthesis of 1,2-disubstituted benzimidazoles by the transfer hydrogenation of azobenzene, using benzylamine as a hydrogen donor, sequential rearrangement of hydrazobenzene to semidine and further condensation with N-benzylideneamine is reported, catalyzed by 2 mol% of [Ni(COD)2] : dippe. The N2 substitution on benzimidazole can be controlled by the selection of different azobenzenes and C2 substitution will only depend on the chosen benzylamine. The current methodol. avoids the addition of external oxidants, which are needed in the classical benzimidazole synthesis. The byproduct, N-benzylideneamine, obtained from dehydrogenation of benzylamine produced 2,4,5-trisubstituted imidazolines by cyclization and C-H functionalization, and this route was optimized using 2 mol% of [Ni(COD)2] : 2PPh3.

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 C22H23ClN4, Computed Properties of 2622-67-5.

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

Bezzubov, Stanislav I.’s team published research in Inorganica Chimica Acta in 415 | CAS: 2622-67-5

Inorganica Chimica 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 C19H14N2, Computed Properties of 2622-67-5.

Bezzubov, Stanislav I. published the artcileTuning the photophysical and electrochemical properties of iridium(III) 2-aryl-1-phenylbenzimidazole complexes, Computed Properties of 2622-67-5, the publication is Inorganica Chimica Acta (2014), 22-30, database is CAplus.

Heteroleptic bis-cyclometalated Ir(III) complexes, [Ir(cpbi)2(H2dcbpy)][PF6] (1), [Ir(pbi)2(H2dcbpy)][PF6] (2), and [Ir(mpbi)2(H2dcbpy)][PF6] (3), where pbi = 1,2-diphenylbenzimidazole, cpbi = 2-(4-chlorophenyl)-1-phenylbenzimidazole, mpbi = 2-(3,4-dimethoxyphenyl)-1-phenylbenzimidazole, and H2dcbpy = 2,2′-bipyridine-4,4′-dicarboxylic acid were synthesized and characterized by elemental anal., 1H, 31P NMR, and high resolution mass-spectra. The mol. structure of complex 3 was determined from single-crystal x-ray anal. The complexes exhibit absorption up to 550 nm with molar absorptivities of 2500 M-1 cm-1. They have strong luminescence in broad yellow-to-red region in solutions at room temperature While chloro-substituent (complex 1) causes a little hypsochromic shift of the absorption maxima compared to unsubstituted 2, introduction of two methoxy-groups (complex 3) gives rise to a bathochromic shift of âˆ?00 nm. A.C. voltammetry studies of the complexes indicates reversible oxidation and reduction potentials. Calculated excited state oxidation potentials for 1–3 are neg. enough to efficiently inject electrons into the conduction band of TiO2 (EF â‰?-0.5 V). Thus, from the electrochem. point of view, all the complexes, especially 3, are good candidates for operation in DSSC as dyes.

Inorganica Chimica 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 C19H14N2, Computed Properties of 2622-67-5.

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

Bezzubov, Stanislav I.’s team published research in IUCrData in 1 | CAS: 2622-67-5

IUCrData 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, Synthetic Route of 2622-67-5.

Bezzubov, Stanislav I. published the artcile(2-Benzoyl-1-phenylethenolato-κ2O,O’)bis[2-(1-phenyl-1H-benzimidazol-2-yl)phenyl-κC1]iridium(III) dichloromethane disolvate, Synthetic Route of 2622-67-5, the publication is IUCrData (2016), 1(12), x161915, database is CAplus.

The authors present here synthesis and crystal structure of a neutral IrIII complex, [Ir(C19H13N2)2(C15H11O2)]·2CH2Cl2 or [Ir(CN̂)2OÔ]·2CH2Cl2, where CN̂ is 1,2-diphenyl-1H-benzimidazole and OÔ is 2-benzoyl-1-phenylethenolate. The coordination sphere of the IrIII atom, located on a 2-fold rotation axis, is that of a slightly distorted C2N2O2 octahedron, with the N atoms in a trans configuration. In the crystal, complex mols. assemble through weak C-H···π interactions in the range 2.699(3)-2.892(3) Å. The solvent CH2Cl2 mols. reside in channels aligned along the a axis and are connected to the complex mols. by C-H···O interactions.

IUCrData 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, Synthetic Route of 2622-67-5.

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

Bezzubov, S. I.’s team published research in Russian Journal of Inorganic Chemistry in 59 | CAS: 2622-67-5

Russian Journal of 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, Category: imidazoles-derivatives.

Bezzubov, S. I. published the artcileSynthesis, photophysical and electrochemical properties of iridium(III) complexes with 2-aryl-1-phenylbenzimidazoles, Category: imidazoles-derivatives, the publication is Russian Journal of Inorganic Chemistry (2014), 59(6), 571-577, database is CAplus.

A series of mixed-ligand cyclometalated iridium(III) complexes with 2-aryl-1-phenylbenzimidazoles (where aryl is Ph, 4-chlorophenyl, 4-(N,N-dimethylamino)phenyl, 3,4-dimethoxyphenyl, 2-thienyl, and 11-carboxydipyrido[3,2-a:2′,3′-c]phenazine) have been synthesized and characterized by 1H NMR and 31P NMR spectroscopy and mass spectrometry. The electron absorption spectra (EASs) of the complexes are observed to contain charge-transfer bands in the low-energy region (below 600 nm, ε â‰?(1-3) × 103 mol/(L cm)). The bands experience appreciable bathochromic shifts as the electron-donating properties of a benzimidazole ligand strengthen. The complexes manifest luminescence in the yellow-red spectral region. According to a.c. voltammetry data, reversible and quasi-reversible redox transitions (Eox â‰?1.2-1.7 V with respect to SHE, CH3CN) are observed in solutions of the studied complexes.

Russian Journal of 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, Category: imidazoles-derivatives.

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