5 research outputs found
(E)-3-(4-Cyclohexyl-3-fluorobenzylidene)chroman-4-one
The title compound, C22H21FO2, exhibits substitutional disorder of the F atom and a H atom in the asymmetric unit with different occupancies, the refined F:H ratio being 0.80 (2):0.20 (2). The dihedral angle between the fluorinated benzene ring and the benzene ring of the chromanone system is 37.30°. There are two relatively high residual electron-density peaks associated with the disorder
3-Benzyl-5,7-dimethoxychroman-4-ol
In the crystal structure of the title compound, C18H20O4, O—H⋯O hydrogen bonds connect the molecules in parallel layers along the b axis
3-Bromochroman-4-one
The heterocyclic ring of the title compound, C9H7BrO2, obtained by bromination of 4-chromanone with copper bromide, adopts a half-chair conformation. The supramolecular structure is governed by a weak C—H...O hydrogen bond. There is also π–π stacking between symmetry-related benzene rings; the centroid–centroid distance is 3.9464 (18), the perpendicular distance between the rings is 3.4703 (11) and the offset is 1.879 Å