نتایج جستجو برای: 15 tetraaryl 1h imidazole
تعداد نتایج: 529575 فیلتر نتایج به سال:
A one-pot regioselective bis-Suzuki-Miyaura or Suzuki-Miyaura/Sonogashira reaction on 2,4-dibromo-1-methyl-5-nitro-1H-imidazole under microwave heating was developed. This method is applicable to a wide range of (hetero)arylboronic acids and terminal alkynes. Additionally, this approach provides a simple and efficient way to synthesize 2,4-disubstituted 5-nitroimidazole derivatives with antibac...
The one-step condensation between the Green Fluorescence Protein (GFP) chromophore and 1H-imidazole-5-carbaldehyde catalyzed by ZnCl(2) proved to be a facile method to synthesize the red Kaede chromophore and its derivatives (1a-d, 2, and 3 > 70%), among which 1a then demonstrated its potential as a dye in solar cell, with a moderate conversion efficiency (eta) of 3.04%.
To cite this article: Krzysztof Komodziński, Zofia Gdaniec & Bohdan Skalski (2015) Photochemical Behavior of 2-Azidopurine Tri-O-Acetylribonucleoside in Aqueous Solution: Unprecedented Transformation into 1-(5′-O-Acetyl-β-D-Ribofuranosyl)-5-[(2-Oxo-1,3,5Oxadiazocan-4-Ylidene)Amino]-1H-Imidazole-4-Carbaldehyde, Nucleosides, Nucleotides and Nucleic Acids, 34:4, 235-245, DOI: 10.1080/15257770.2014...
In the title complex, [Pb(C(8)H(9)N(2)O(4))(2)(H(2)O)(2)](n), the eight-coordinate Pb(II) atom lies on a twofold rotation axis and adopts a slightly distorted square-anti-prismatic N(2)O(6) coordination geometry. The ligand donor atoms are the tertiary N atoms of the imidazole rings and the carboxyl-ate O atoms of two chelating 5-carb-oxy-2-propyl-1H-imidazole-4-carboxyl-ate ligands, the carb-o...
In the title complex, [Cd(C13H8N5)2(C2H5OH)2], the Cd(II) cation is located on an inversion center and coordinated by two deprotonated 2-(1H-benzotriazol-1-yl)-1H-benzimid-azol-1-ide (L) ligands and two ethanol mol-ecules in a distorted N4O2 octa-hedral geometry. In the L ligand, the dihedral angle between benzoimidazole and benzotriazole ring systems is 10.8 (3)°. In the crystal, the complex m...
Leishmaniasis is a neglected tropical disease (NTDs), endemic in 88 countries, affecting more than 12 million people. The treatment consists in pentavalent antimony compounds, amphotericin B, pentamidine and miltefosine, among others. However, these current drugs are limited due to their toxicity, development of biological resistance, length of treatment and high cost. Thus, it is important to ...
In this study, poly(allylphenol-co-methylmethacrylate-co-vinyl imidazole) (PAMV) terpolymer adsorbents were synthesized using the photopolymerization method with 1-vinyl imidazole, methyl methacrylate, and 2-allylphenol monomers. Structural surface analyzes of PAMV polymers obtained different mole ratios 1H-Nuclear Magnetic Resonance, Fourier-Transform Infrared Spectroscopy, X-Ray Photoelectron...
In the title tricyano-nitrile compound, C(8)H(5)N(5), the N-substituted cyano-ethyl group is offset to the imidazole ring [dihedral angle = 75.41 (15)°].
In the title compound, C(17)H(16)N(2)·H(2)O, the imidazole ring is essentially planar [maximum deviation = 0.0037 (7) Å]. The imidazole ring makes dihedral angles of 80.74 (7) and 41.62 (7)° with the phenyl rings attached to the N and C atoms, respectively. The dihedral angle between the two phenyl rings is 75.83 (8)°. Inter-molecular O-H⋯N and O-H⋯O hydrogen bonds are found in the crystal stru...
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