نتایج جستجو برای: 15 tetraaryl 1h imidazole
تعداد نتایج: 529575 فیلتر نتایج به سال:
a general synthetic route to the synthesis of imidazoles has been developed using nano sbcl5/sio2 under solvent-free conditions. the multi-component reactions of aldehydes, benzil and ammonium acetate were carried out to afford some trisubstituted imidazole derivatives. this method provides several advantages like simple work-up, environmentally benign, and shorter reaction times along with hig...
The title compound, C(5)H(4)N(10)·H(2)O, is composed of three five-membered rings that are essentially coplanar, the dihedral angles between the imidazole ring and the tetra-zole rings being 3.5 (2) and 3.0 (2)°. In the crystal, inter-molecular O-H⋯N, N-H⋯O and N-H⋯N hydrogen bonds lead to the formation of a three-dimensional network. An intra-molecular N-H⋯N hydrogen bond is also present.
The present study describes a facile and efficient synthesis of 1-(N-arylacetamide)-4-phenyl-2-pyrazolyl-imidazole 7a–7t by reacting 1-(4-phenyl-1H-imidazol-2-yl)-1H-pyrazole (3a)/3,5-dimethyl-1-(4-phenyl-1H-imidazol-2-yl)-1H-pyrazole (3b) with 2-bromo-N-substitutedacetamide 6a–6j) in good yield. structure compounds are confirmed various spectral techniques. All the prepared examined for in-vit...
In the mol-ecule of the title compound, C(12)H(10)N(4), the two imidazole substituents are related by inversion symmetry and each forms a dihedral angle of 25.02 (8)° with the benzene ring. In the crystal, mol-ecules are linked through N-H⋯N hydrogen bonds, forming cyclic units [graph-set R(4) (4)(28)], which generate a layered structure extending across (011).
Herein, we report the synthesis of two novel coordination polymers using a combination imidazole-containing ligands, namely 1,3,5-tris((1H-imidazol-1-yl)methyl)benzene (L1) and 3,3?,5,5?-tetra(1H-imidazol-1-yl)-1,1?-biphenyl (L2) carboxylate ligand derived from 4,4?-biphenyldicarboxylic acid (H2BPDC). The structures [Ni(L1)(BPDC)]·2H2O (1·2H2O), which exhibits 2-fold interpenetrated 3D ? archit...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید