2-Chloro-4-(3,5-di­methyl-1H-pyrazol-1-yl)­pyrimidine

In the crystal structure of the title compound, C₉H₉ClN₄, there are non-classical intramolecular C—H...N hydrogen bonds and intermolecular C—H...π interactions.

4-(4-tert-Butyl­phen­oxy)-2-chloro­pyrimidine

In the title compound, C₁₄H₁₅ClN₂O, the benzene and pyrimidine rings are nearly perpendicular, the dihedral angle between them being 84.7 (2)°.

1-(3-Chloro­benz­yl)pyrimidine-2,4(1H,3H)-dione

The title compound, C₁₁H₉ClN₂O₂, crystallizes with weak inter­molecular N—H...O hydrogen-bond inter­actions. The dihedral angle between the pyrimidine and benzene rings is 86.82 (7)°.