6-Amino-8-(2-bromophenyl)-1,7,8,8a-tetrahydro-3H-isothiochromene-5,7,7-tricarbonitrile dimethylformamide solvate
نویسندگان
چکیده
In the title compound, C(18)H(13)BrN(4)S·C(3)H(7)NO, the thio-pyran ring and the adjacent six-numbered ring adopt distorted boat conformations. The mol-ecules, lying about inversion centers, form hydrogen-bonded dimers involving one of the H atoms on the amino group with the N atom of a cyano group of an adjacent mol-ecule, resulting in a 12-membered ring system [R(2) (2)(12) ring motif]. The other H atom of the amino group forms an inter-molecular hydrogen bond with the O atom of the dimethyl-formamide (DMF) mol-ecule. Another lone pair of electrons on the same carbonyl O atom of DMF mol-ecule forms a non-classical C-H⋯O inter-molecular hydrogen bond, resulting in a chain of mol-ecules.
منابع مشابه
8,8-Dimethyl-5-(4-methylphenyl)-8,9-dihydropyrimido[4,5-b]quinoline-2,4,6(1H,3H,7H)-trione N,N-dimethylformamide solvate
The title compound, C(20)H(19)N(3)O(3)·C(3)H(7)NO, was synthesized by the reaction of 6-amino-pyrimidine-2,4(1H,3H)-dione and 4-methyl-benzaldehyde with 5,5-dimethyl-1,3-cyclo-hexa-nedione in 1-butyl-3-methyl-imidazolium bromide at 363 K. The pyrimidine ring adopts a half-chair conformation while the six-membered ring fused to the pyridine ring adopts a skew-boat conformation. The dihedral angl...
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In the mol-ecule of the title compound, C(26)H(23)ClN(4)O(2)·C(3)H(7)NO·2H(2)O, the indole and dihydro-pyridine rings are planar and make a dihedral angle of 89.86 (7)°. The dihydro-pyridine ring forms a dihedral angle of 79.95 (7)° with the attached benzene ring. In the crystal structure, inter-molecular N-H⋯O and O-H⋯O hydrogen bonds link the mol-ecules. Intermolecular C-H⋯N and C-H⋯Cl intera...
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