Zeolitic Imidazole Framework-8 (ZIF-8) has been synthesized by dissolving Zn(NO3)2.4H2O and 2-MeIM into a methanol solvent solvothermal method. The ZIF-8 will be applied as cadmium (Cd) adsorbent in Polluted water. Several characterization methods were conducted, including XRD, FTIR, AAS. XRD analysis shows that the prominent characteristic peaks of at an angle 2θ = 7,25o; 10,26o; 12,57o; 16,22...

The reaction of N-phenylimidoyl isoselenocyanates 1 with 2-amino-1,3-thiazoles 10 in acetone proceeded smoothly at room temperature to give 4H-1,3-thiazolo[3,2-a] [1,3,5]triazine-4-selones 13 in fair yields (Scheme 2). Under the same conditions, 1 and 2-amino-3-methylpyridine (11) underwent an addition reaction, followed by a spontaneous oxidation, to yield the 3H-4l4-[1,2,4]selenadiazolo[1’,5’...

The N-Boc-protected (S)-prolinamine reacts readily with formaldehyde and diverse alphahydroxyimino ketones to give imidazole N-oxides with an enantiomerically pure N-protected (pyrrolidin-2yl)methyl substituent. Subsequent deprotection yields the corresponding NH derivatives. Upon treatment of these products with Ac2O at room temperature, a cascade of reactions leads to optically active tricycl...

In the mol-ecular structure of the title compound, also named penciclovir monohydrate, C(10)H(15)N(5)O(3)·H(2)O, the 4-hydr-oxy-3-hydroxy-methyl-but-1-yl group is connected to guanine through an N atom of the imidazole ring. Water mol-ecules stabilize the mol-ecular packing by forming O-H⋯O hydrogen bonds. A three-dimensional network is generated via inter-molecular N-H⋯N, N-H⋯O, O-H⋯N and O-H⋯...

3-Amino-1-methyl-5H-pyrido[4,3-b]indole (Trp-P-2) and 2-amino-6-methyldipyrido[1,2-a:3',2'-d]imidazole (Glu-P-1) are potent mutagen/carcinogens isolated from pyrolyzates of tryptophan and glutamic acid, respectively, and they have been found to exist in many cooked foods. Trp-P-2 and Glu-P-1 bind to DNA covalently after metabolic activations. The compounds are oxidized to the corresponding hydr...

In the title compound, C23H20F3N3O3S2, the benzo-imidazole unit makes dihedral angles of 5.02 (1) and 76.42 (1)°, respectively, with the pyridine and methyl-benzene rings; the dihedral angle between the pyridine and methyl-benzene rings is 72.19 (1)°. In the crystal, mol-ecules are connected by weak C-H⋯F, C-H⋯O and C-H⋯N hydrogen bonds. Weak C-H⋯π inter-actions and π-π stacking [centroid-centr...

The chemical investigation of the Caribbean sponge Agelas citrina revealed four new pyrrole-imidazole alkaloids (PIAs), the citrinamines A-D (1-4) and the bromopyrrole alkaloid N-methylagelongine (5). All citrinamines are dimers of hymenidin (6) which was also isolated from this sponge as the major metabolite. Citrinamines A (1) and B (2) are derivatives of the PIA dimer mauritiamine (7), where...

In the title compound, [Ag(C(6)H(9)N(3)O(3))(2)]NO(3), the Ag atom is bicoordinated in a distorted linear configuration by two 1-(2-hydroxy-ethyl)-2-methyl-5-nitro-imidazole ligands through one of the N atoms. The dihedral angle between the two imidazole rings is 16.1 (2)°. The O atoms of the nitrate anion are disordered over two positions; the site occupancy factors are 0.8 and 0.2. The ions a...