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Acta Cryst. (2013). E69, o123-o124  [ doi:10.1107/S1600536812050787 ]

Methyl 4-(4-chlorophenyl)-8-iodo-2-methyl-6-oxo-1,6-dihydro-4H-pyrimido[2,1-b]quinazoline-3-carboxylate

S. K. Nayak, K. N. Venugopala and B. Odhav

Abstract: In the title compound, C20H15ClIN3O3, the dihedral angle between the quinazolinone ring system [r.m.s. deviation = 0.047 (2) Å] and the pendant benzene ring is 82.63 (11)°. The molecular conformation is stabilized by intramolecular C-H...O interactions. In the crystal, the molecules are linked by N-H...O hydrogen bonds into chains along the a-axis direction. Another set of chains propagating along [101] is formed due to intermolecular I...Cl short contacts of 3.427 (1) Å, thus giving layers parallel to (010). The layers are connected by C-H...[pi] and [pi]-[pi] interactions, the shortest distance between the centroids of aromatic rings being 3.8143 (16) Å.


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