organic compounds
In the crystal structure of the title compound, C14H20N2O2, there is a center of symmetry at the centroid of the benzene ring; the asymmetric unit is, therefore, one half molecule. The morpholine ring is in a chair conformation.
organic compounds
In the crystal structure of the title compound, C20H16N2O5, the cyclohexane ring assumes the sofa conformation. Steric repulsions between one of the ortho-H atoms of each of the aryl groups and the equatorial H atoms at positions 3 and 5 of the cyclohexane ring lead to large torsion angles between the aryl rings and the adjacent olefinic linkages. Various bond angles confirm this steric impedance between the aryl and cyclohexane rings.
organic compounds
Both olefinic double bonds of the title compound, C20H16FNO3, have the E configuration, while the cyclohexyl ring adopts the sofa conformation. Non-bonded interactions occur between one of the ortho H atoms of each of the aryl rings and the equatorial H atoms at positions 3 and 5 of the alicyclic ring.
organic compounds
Both olefinic bonds in the title compound, C21H19NO3, possess an E configuration, while the cyclohexyl ring adopts a sofa conformation. The aryl rings are not coplanar with the adjacent olefinic groups due to non-bonded interactions between the ortho H atoms of the aryl rings and the equatorial H atoms at positions 3 and 5 of the cyclohexyl ring.