10112-15-9Relevant articles and documents
THE MECHANISM OF N-ALKYLATION OF WEAK N-H-ACIDS BY PHASE TRANSFER CATALYSIS
Dehmlow, Eckehard V.,Thieser, Rainer,Zahalka, Hayder Ali,Sasson, Yoel
, p. 297 - 300 (1985)
The alkylation of aromatic amines in the presence of inorganic bases is accelerated by a PT catalyst even if KHCO3 is the base.ArNR(1-) ions seem not to be involved.A novel type of mechanism for a PTC process is proposed.
Synthesis of new 1,2,3-triazole linked benzimidazole molecules as anti-proliferative agents
Sahay, Ishani I.,Ghalsasi, Prasanna S.
, p. 825 - 834 (2017)
One pot click chemistry is used to link triazole and benzimidazole pharmacophore to get N-((1-((1H-benzo[d]imidazol-2-yl)methyl)-1H-1,2,3-triazol-4-yl)methyl)aniline and its derivatives. Flexible linkages in the form of –CH2–R or –O–R/–N–R were designed during synthesis. All the newly synthesized compounds were characterized by FT-IR and NMR spectroscopy as well as high-resolution mass spectrometry. Selected compounds were screened for in vitro anti-proliferative activity using National Cancer Institute (NCI)-60 human tumor cell line screening program. The most potent structure N-((1-((1H-benzo[d]imidazol-2-yl)methyl)-1H-1,2,3-triazol-4-yl)methyl)-4-chloroaniline 7e showed 40% growth inhibition in renal cancer cell line (UO-31) at 10 μM concentration.
Synthesis and in vitro antifungal evaluation of benzoimidazolyl-piperazinyl-phenylmethanone derivatives
Kankate, Rani S.,Gide, Parag S.,Belsare, Deepak P.
, p. 1855 - 1863 (2014)
Benzimidazole and piperazines are the important pharmacophores in the structures of many antifungal compounds. Further, the phenylmethanone are also a unique class of compounds whose antifungal profile is not much exploited. So to exploit their antifungal potential we have selected these three combinations and framed the novel parent structure for our research work. In this study a novel series of benzimidazoles derivatives was synthesized by microwave irradiation and characterized by 1H NMR, 13C NMR, Infra Red (IR), and Mass Spectroscopy (MS), and by elemental analysis. The screening of compound for in vitro (turbidimetric method) antifungal activity against C.albicans revealed activity in many of the compounds as comparable to that of ketoconazole.
Tetraphenylethylene-based blue light material containing benzimidazole unit as well as preparation method and application
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Paragraph 0027; 0028; 0029; 0090; 0091; 0092, (2017/10/10)
The invention discloses a tetraphenylethylene-based blue light material containing a benzimidazole unit. The tetraphenylethylene-based blue light material is shown as a structural formula I or II, wherein R1 is H, tert-butyl, n-butyl or hydroxyl, and R2 is alkyl. A 2-nitro-N-tert-butylphenyl amine or 2-nitro-N-n-butylphenyl amine precursor and a 4-formyl tetraphenylethylene precursor is firstly prepared, and then cyclization reaction is carried out to prepare a compound shown as the formula I or II. A preparation method of the compound is easy to operate, the reaction is moderate and the yield is high; the compound has relatively high decomposition temperature and glass-transition temperature, and shows blue fluorescence; the compound has a relatively good single-color property, so that an OLED (Organic Light Emitting Diode) device prepared by taking the compound as a luminescent material emits blue light; the starting voltage is 3.3V and the maximum brightness efficiency is 1.48cd/A. (The formula I and the formula II are shown in the description).
Imidoyl dichlorides as new reagents for the rapid formation of 2-aminobenzimidazoles and related azoles
Pollock, Julie A.,Kim, Sung Hoon,Katzenellenbogen, John A.
, 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.