1-Ethyl-3-methylquinoxalin-2(1H)-one
نویسندگان
چکیده
The asymmetric unit of the title compound, C(11)H(12)N(2)O, contains two independent mol-ecules. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules. There are π-π contacts between the quinoxaline rings [centroid-centroid distances = 3.446 (2), 3.665 (2), 3.645 (3) and 3.815 (3) Å]. There also exist C-H⋯π contacts between the methyl groups and the quinoxaline rings.
منابع مشابه
1-Benzyl-3-methylquinoxalin-2(1H)-one
The asymmetric unit of the title compound, C(16)H(14)N(2)O, contains three independent mol-ecules. The dihedral angles between the quinoxaline and phenyl planes in the three mol-ecules are 82.58 (8), 85.66 (9) and 85.36 (9)°. The crystal packing is stabilized by C-H⋯O and C-H⋯N hydrogen bonds.
متن کاملcatena-Poly[[bis(1-ethyl-1H-imidazole-κN 3)cadmium]-di-μ-chlorido-[(1-ethyl-1H-imidazole-κN 3)cadmium]-di-μ-chlorido-[(1-ethyl-1H-imidazole-κN 3)cadmium]-di-μ-chlorido-[bis(1-ethyl-1H-imidazole-κN 3)cadmium]]
The asymmetric unit of the crystal structure of the title compound, [Cd(2)Cl(4)(C(5)H(8)N(2))(3)](n), contains two Cd(II) cations, three 1-ethyl-1H-imidazole ligands, and four Cl(-) anions. The two Cd(II) atoms have quite different coordination environments: one is octa-hedrally coordinated by four Cl atoms and two N atoms from two 1-ethyl-1H-imidazole ligands, and the second is in a severely d...
متن کاملOligomerization of indole derivatives with incorporation of thiols.
Two molecules of indole derivative, e.g. indole-5-carboxylic acid, reacted with one molecule of thiol, e.g. 1,2-ethanedithiol, in the presence of trifluoroacetic acid to yield adducts such as 3-[2-(2-amino-5-carboxyphenyl)-1-(2-mercaptoethylthio)ethyl]-1Hindole-5-carboxylic acid. Parallel formation of dimers, such as 2,3-dihydro-1H,1'H-2,3'-biindole-5,5'-dicarboxylic acid and trimers, such as 3...
متن کاملHigh functionalization of 5-nitro-1H-imidazole derivatives: the TDAE approach.
We report herein the synthesis of substituted 2-[4-(1,2-dimethyl-5-nitro-1H-imidazol-4-yl)phenyl]-1-arylethanols, ethyl 3-[4-(1,2-dimethyl-5-nitro-1H-imidazol-4-yl)-phenyl]-2-hydroxypropanoate and 2-[4-(1,2-dimethyl-5-nitro-1H-imidazol-4-yl)benzyl]-2-hydroxy-acenaphthylen-1(2H)-one from the reactions of 4-[4-(chloromethyl)phenyl]-1,2-dimethyl-5-nitro-1H-imidazole with various aromatic carbonyl ...
متن کاملSynthesis, Characterization and Antimicrobial Activity of New 2-Phenylquinoline-4(3H)-one Derivatives
Quinazolinones is an important chemical synthesis with different physiological significance and pharmacological utility. Reaction of anthranilic acid with benzoyl chloride in pyridine yielded 2-phenyl4H-benzo[d][1,3]oxazin-4-one, which on condensation reaction with the tryptophan in glacial acetic acid afforded 3-(1H-indol-3-yl)-2-(4-oxo-2-phenylquinazolin-3(4H)-yl) propanoic acid (2). Treatmen...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 64 شماره
صفحات -
تاریخ انتشار 2008