S. Anthal, P. Dutt, N. K. Satti
Nov 26, 2014
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Journal
Crystallography Reports
Abstract
The title compound, 2,8-dimethyl-3-chloro-4H-pyrido[1,2-a]pyrimidin-4-one, (C10H9ClN2O), was synthesized, and its structure was established by spectral analysis and X-ray diffraction studies. There are two independent molecules per asymmetric unit. In both the molecules, the pyrido-pyrimidine moiety is planar with a dihedral angle of 3.53(9)° for molecule A and 1.61(9)° for molecule B. The crystal structure is stabilized by C-H⋯O and C-H⋯Cl hydrogen bonds. The π-π interactions were also observed between the A and B molecules. The pyrido-pyrimidine moiety is not involved in any C-H⋯π contacts.