Crystal structure of 10-[(3-oxo-3H-benzo[f]chromen-1-yl)methyl]-2-trifluoromethyl-9a,10-dihydrobenz[4,5]imidazo[1,2-a]pyrimidin-4(5aH)-one

Abstract

In the title compound, C25H14F3N3O3, the dihedral angle between the planes of the benz[4,5]imidazo[1,2-a]pyrimidine unit (r.m.s. deviation = 0.035 Å) and the benzochromene ring system (r.m.s. deviation = 0.106 Å) is 72.82 (5)°. In the crystal, molecules are linked by C—H...O interactions, generating [010] C(9) chains. A weak aromatic π–π stacking interaction [centroid–centroid separation = 3.5376 (15) Å] is also observed.

Keywords

• crystal structure
• fused-ring system
• chromene
• benzimidazole
• pyrimidinone
• benzopyrimidine
• π–π stacking interactions