4,4,6-Trimethyl-1-(3-methylphenyl)-3,4-dihydropyrimidine-2(1H)-thione
نویسندگان
چکیده
The asymmetric unit of the title compound, C(14)H(18)N(2)S, contains two independent and conformationally similar mol-ecules, which form cyclic dimers via inter-molecular hydrogen bonds of the type N-H⋯S [graph set R(2) (2)(8)]. The structure is iso-morphous with that of one of the polymorphs of 4,4,6-tri-methyl-1-phenyl-3,4-dihydro-pyrimidine-2(1H)-thione [Yam-in et al. (2005 ▶). Acta Cryst. E61, o55-o57].
منابع مشابه
1-(3-Fluorophenyl)-4,4,6-trimethyl-3,4-dihydropyrimidine-2(1H)-thione
In the title compound, C(13)H(15)FN(2)S, the dihydro-pyrimidine ring is essentially planar, with a maximum deviation of 0.086 (3) Å from the mean plane of the rest of the ring for the dimethyl-ated C atom. The benzene ring is almost perpendicular to the dihydro-pyrimidine ring, with a dihedral angle of 83.97 (14)°. The crystal packing is characterized by centrosymmetric dimers resulting from pa...
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The dihydro-pyrimidine ring of the title compound, C(13)H(15)ClN(2)S, adopts an envelope conformation with five almost coplanar atoms (r.m.s. deviation = 0.054 Å) and the C atom bearing the two methyl substituents deviating from this plane by 0.441 (2) Å. The best plane through the five almost coplanar atoms forms a dihedral angle of 89.56 (5)° with the benzene ring. The crystal packing is char...
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In the title mol-ecule, C(13)H(13)ClN(2)OS, the heterocyclic ring adopts a flattened boat conformation, and the plane through the four coplanar atoms makes a dihedral angle of 87.92 (10)° with the benzene ring. The thione, acetyl and methyl groups have equatorial orientations with respect to the attached heterocyclic ring. The chloro-phenyl group has an axial orientation. Inter-molecular N-H⋯O,...
متن کامل5-Acetyl-4-(2-chlorophenyl)-6-methyl-3,4-dihydropyrimidine-2(1H)-thione
In the title mol-ecule, C(13)H(13)ClN(2)OS, the heterocyclic ring adopts a flattened boat conformation with the plane through the four coplanar atoms making a dihedral angle of 85.6 (1)° with the benzene ring, which adopts an axial orientation. The thionyl, acetyl and methyl groups all have equatorial orientations. Inter-molecular N-H⋯O, N-H⋯S and C-H⋯S hydrogen bonds are found in the crystal s...
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In the title mol-ecule, C(14)H(16)N(2)O(2)S, the heterocyclic ring adopts an envelope conformation with the plane through the five coplanar atoms making a dihedral angle of 88.99 (4)° with the benzene ring, which adopts an axial orientation. The thionyl, acetyl and methyl groups all have equatorial orientations. Inter-molecular N-H⋯S, N-H⋯O, C-H⋯O and C-H⋯S hydrogen bonds are found in the cryst...
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