4093-88-3Relevant articles and documents
Cu-Catalyzed C-H Allylation of Benzimidazoles with Allenes
Dong, Yaxi,Breit, Bernhard
supporting information, p. 6765 - 6769 (2021/09/11)
CuH-catalyzed intramolecular cyclization and intermolecular allylation of benzimidazoles with allenes have been described. The reaction proceeded smoothly with the catalytic system of Cu(OAc)2/Xantphos and catalytic amount of (MeO)2MeSiH. This protocol features mild reaction conditions and a good tolerance of substrates bearing electron-withdrawing, electron-donating, or electron-neutral groups. A new catalytic mechanism was proposed for this copper hydride catalytic system.
Novel imidazo[4,5-b]pyridine derived acrylonitriles: A combined experimental and computational study of their antioxidative potential
Bo?ek, Ida,Star?evi?, Kristina,Novak Jovanovi?, Ivana,Vianello, Robert,Hranjec, Marijana
, (2021/09/22)
We describe the synthesis of novel unsubstituted and N-substituted imidazo[4,5-b]pyridine derived acrylonitriles, which were prepared by classical and microwave assisted organic synthesis. Their antioxidative potential was studied using spectroscopic DPPH
Discovery of iminobenzimidazole derivatives as novel cytotoxic agents
Chouha, Nora,Hammoud, Hassan,Brogi, Simone,Campiani, Giuseppe,Welsch, Caroline,Robert, Caroline,Vagner, Stéphan,Cresteil, Thierry,Bentouhami, Embarek,Désaubry, Laurent
, p. 74 - 83 (2018/09/29)
In our quest to identify inhibitors of the eukaryotic translation initiation factor 4F (eIF4F), we serendipitously discovered a novel cytotoxic agent. Even though this compound did not inhibit translation, we explored the structural requirements for its cytotoxicity due to its structural originality. A series of 1,3-disubstituted iminobenzimidazoles was synthesized and evaluated for their in vitro cytotoxicity. The structure-activity relationship studies demonstrate that hydrophobic substituent is essential for activity. The most active compounds displayed a cytotoxicity in KB, HL60 and HCT116 human cancer cells with an IC50 of about 1μM. These first-in-class series of low molecular weight synthetic molecules may provide the basis for the development of new anticancer drugs.
5,10-Dihydropyrido-pyrazolo-triazine compounds and application thereof
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Paragraph 0097; 0098; 0099, (2017/08/02)
The invention relates to 5,10-dihydropyrido[2',3':5,6]pyrazolo[2,3-e][1,2,4]triazine compounds shown in general formula I, and their optical activators or racemates or their pharmaceutically acceptable salts, hydrates or solvates, wherein substituents R1,
The Chameleonic Nature of Platinum(II) Imidazopyridine Complexes
Pinter, Piermaria,Pittkowski, Rebecca,Soellner, Johannes,Strassner, Thomas
supporting information, p. 14173 - 14176 (2017/10/07)
The synthesis and characterization of cyclometalated C^C* platinum(II) complexes with unique photophysical properties, aggregation induced enhancement of the quantum yields with a simultaneous decrease of phosphorescence lifetimes, is reported. Additional
Imidoyl dichlorides as new reagents for the rapid formation of 2-aminobenzimidazoles and related azoles
Pollock, Julie A.,Kim, Sung Hoon,Katzenellenbogen, John A.
supporting information, p. 6097 - 6099 (2015/10/28)
The development of a reagent for the efficient synthesis of five- and six-membered azoles at room temperature is proposed. A variety of substituted 2-aminobenzimidazoles are synthesized in good to excellent yields. The ability to incorporate various protecting groups makes the imidoyl dichloride reagent amenable to a large number of syntheses. The reagent is applied to the total synthesis of the 2-aminobenzimidazole containing carcinogen, 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP), from 2-chloro-3-nitropyridine in >60% yield in 6 steps.
PYRIDYL CARBENE PHOSPHORESCENT EMITTERS
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, (2012/09/22)
Organometallic compounds comprising an imidazole carbene ligand having a N-containing ring fused to the imidazole ring are provided. In particular, the N-containing ring fused to the imidazole ring may contain one nitrogen atom or more than one nitrogen a
PYRIDYL CARBENE PHOSPHORESCENT EMITTERS
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Page/Page column 93, (2012/09/22)
Organometallic compounds comprising an imidazole carbene ligand having a N- containing ring fused to the imidazole ring are provided. In particular, the N-containing ring fused to the imidazole ring may contain one nitrogen atom or more than one nitrogen
A simple synthesis of aminopyridines: Use of amides as amine source
Kodimuthali, Arumugam,Mungara, Anitha,Prasunamba, Padala Lakshmi,Pal, Manojit
experimental part, p. 1439 - 1445 (2010/11/04)
A transition metal/microwave irradiation (or base) free synthesis of aminopyridines has been accomplished via C-N bond forming reaction between chloropyridine and a variety of simple amides under refuxing conditions.
Efficient and selective method for the synthesis of dihydrodipyridopyrazines based on the pd-catalysed animation of halopyridines
Patriciu, Oana-Irina,Finaru, Adriana-Luminita,Massip, Stephane,Leger, Jean-Michel,Jarry, Christian,Guillaumet, Gerald
experimental part, p. 3753 - 3764 (2009/12/05)
A novel methodology for the efficient: and selective synthesis of isomers A and B of N-substituted dihydrodipyridopyrazines was developed. The key step is the intermolecular coupling of aminopyridines and halonitropyridines/dihalopyr- idines in the presen